Trading calculator

• US 20040103127A1
• Filed: 08/12/2003
• Published: 05/27/2004
• Est. Priority Date: 08/12/2002
• Status: Active Grant

• Current Assignee: John Eric Bjornson, Kristin Heather Bjornson
• Original Assignee: John Eric Bjornson, Kristin Heather Bjornson
• Inventors: Bjornson, John Eric, Bjornson, Kristin Heather
• Granted Patent: US 8,073,761 B2
• Time in Patent Office: Days
• US Class Current: 708/160
• CPC Class Codes: G06F 15/025 adapted to a specific application
• CPC Class Codes: G06Q 40/00 Finance; Insurance; Tax strategies; Processing of corporate or income taxes
• CPC Class Codes: G06Q 40/04 Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange

Abstract

The specification discloses a hand-held electronic calculator for use by traders for rapidly and easily determining trade order size(s), number of option(s) or contract(s), and other unknown/or not stored variables for an option(s) trade, and a variety of margin, percentage, cash flow, and rate-of-return calculations. These “hand-held” electronic calculators for trading have a variety of product lines and models (e.g. pocket, hand-held, and desktop) and will be for “traders of all levels . . . trading securities of all types”. These innovative hand-held calculators allow traders worldwide to be fast, proactive, prepared, and informed . . . enabling them to increase productivity and profits. Trade order sizes can be determined for stocks, options, bonds, mutual funds, futures, indexes, currency, commodities, or any other security in the world that is traded using price and buying power as variables to compute trade order size. In addition, the number of option(s) or contract(s) can be determined quickly using pre-set cash amount(s), premium, and multiplier. Price/or premium and buying power are entered by the user, and they can then quickly scroll up/down through order size(s) or number of contract(s) by price/or premium in a range, with a variety of decimal/or fractional increments on “speed keys”. The hand-held calculator determines variables that are used during active trading (e.g. order sizes, number of contracts, option variables), and non-active trading (e.g. internal rate-of-return, financial mgmt rate of return, yield, gain/loss on sale, total dividends, etc.). The Trading Calculator has “Order Size”, “Options”, “Rate-of-Return”, and “Standard Calculator” modes.

Claims

1. An electronic calculator that determines trade order size(s) by price, using cash, margin, and buying power stored amount(s). Said device comprising:

a case;

computer means mounted within the case including

a) memory means containing information relating to a trading price(s) where said processor means being responsive to said storage means to divide a trading price(s) into the previously entered cash, margin, or buying power total to calculate a resultant trade order size(s).

b) input entry means including a keyboard for manually entering a trading price(s), and the amount of cash, margin, or buying power being traded.

c) processing means responsive to a trading price entered through the keyboard using dedicated or non-dedicated key(s) to obtain a resultant trade order size(s), which is equal to the amount of cash, margin, or buying power previously entered through the keyboard divided by price(s) previously entered through the keyboard, and for generating a first display signal corresponding to the resultant order size(s) and price(s); and

numeric means for manually inputting amount(s) for cash, margin, and buying power stored keys;

numeric means for manually inputting trading price(s).

input means to select decimal or fractional mode of operation;

input means to modify/or clear the numeric trading price(s) including amount(s) for cash, margin, or buying power.

input means for fractional and decimal price(s) that include “

manual input” and

“

pre-defined input”

methods using dedicated keys or non-dedicated digit entry key(s).

input, processor, storage, and display means that accommodates decimals and fractions for determining price(s) and order size(s).

processor means for calculating a trade order size(s) for the previously entered price(s), where said order size(s) and price(s) corresponds to the previously entered amount for cash, margin, and buying power.

processor means for rounding down the resultant order size(s) to the next whole number and a display means for viewing this rounded number(s).

processor means for determining an order size(s) for the price(s) previously entered through the keyboard, wherein said display means includes means for displaying the order size(s) and price(s) with descriptive acronyms.

memory means for storing trading price(s), and a processor means being responsive to said storage means to divide trading price(s) into the previously entered amount of cash, margin, or buying power to calculate a resultant trade order size(s).

display means for numbers indicative of the calculated order size(s) including trading price(s) and order size(s), enabling the trader to review same.

display means for selectively displaying stored trading price(s) and calculated order size(s).

look-up table means for storing trade price(s), so that trade price(s) can be divided into the amount of previously entered cash, margin, and buying power total, to determine trade order size(s).

look-up table means for storing numeric value(s) that are responsive to the processor means to calculate trading price(s) and order size(s).

said keyboard includes a dedicated or non-dedicated first command key operatively connected to the processing means for automatically initiating the operations of the processing means involving the price(s) previously entered and determining a trade order size(s) by dividing the amount of cash, margin, or buying power previously entered by price(s) previously entered, generating the first display signal upon entry of the price(s).

processor means at least calculating EQU1 through EQU84, and also calculating each variable of each equation EQU1 through EQU84 that can be stored and displayed.

2. An electronic calculator as defined in claim 1 wherein trade price(s) can be calculated between a maximum and minimum trading price with a resultant trading price range and means for calculating order size(s) for each trading price(s) within the price range.

numeric means for manually inputting a trading price range or processor means internally determining a price range from the price previously entered by user;

and

means for manually inputting numbers to modify/or clear the numeric trading price range including amount(s) for cash, margin, or buying power.

storage means wherein there exists a maximum number of records in an internal price range determined by the price previously entered through the keyboard;

storage means for storing individual trading prices from the trading price range, said processor means being responsive to said storage means to divide each trading price of the price range into the previously entered amount of cash, margin, or buying power to calculate the resultant trade order size.

processing, storage, and display means to accommodate fractional or decimal prices within the price range.

processor means for calculating trade order size for each price in the price range, each of said order size and price corresponding to the inputted numeric amount for cash, margin, and buying power.

processor means for rounding down the resultant order size to the next whole number, for each order size calculation within the price range, and a display means for viewing each rounded number.

processor means for determining an order size for each price within the price range, wherein said display means includes means for displaying the order size and price with descriptive acronyms.

processor means that determines an internal price range from the price previously entered, and an input and display means to view and scroll through price(s) and associated order size(s) in the price range.

processor means that determines an internal price range from the previously entered high-price and low-price of the price range, and a display and input means to view and scroll through price(s) and associated order size(s) in the price range.

numeric input means using dedicated or non-dedicated key(s) or switch(es), or a combination of dedicated and non-dedicated key(s) or switch(es), to enter a trading price range by entry of a single trading price, then depression of a dedicated or non-dedicated key that activates the processor means to determine an internal trading price range and resultant order size(s) for each price in the price range.

numeric input means to enter a trading price range by entry of a low-price followed by the depression of a dedicated or non-dedicated key that stores this entry, then entry of a high-price followed by the depression of a dedicated or non-dedicated key that stores this entry, then depression of a dedicated or non-dedicated key that activates the processor means to determine an internal trading price range and resultant order size(s) for each price in the price range.

numeric input means to enter a trading price range by entry of a low-price, followed by the depression of a dedicated or non-dedicated key to act as a separator, then entry of a high-price, followed by depression of a dedicated or non-dedicated key that activates processor means to determine the price range between previously entered low-price and high-price and resultant order size(s) for each price in the price range.

numeric input means to enter a single trading price followed by depression of a dedicated or non-dedicated key that activates the processor means to determine a price range and resultant order size(s) by price, based upon previously entered price, cash, margin, and buying power previously stored amount(s), and display means to view and scroll through all order size(s) and price(s) in the price range with the first record displaying price previously entered and calculated order size; and

display means for quickly viewing/and scrolling through order size(s) by price within a price range and displaying these order size(s) with associated price(s).

display means for selectively displaying price(s) of the stored trading price range and resultant order size(s).

look-up table means for storing numeric trading price(s) and price range(s), so that each individual trading price within the price range can be divided into the amount of previously entered cash, margin, and buying power total, to determine trade order size(s).

look-up table means for storing numeric value(s) that are responsive to the processor means to calculate trading price(s), trading price range(s), and order size(s).

said keyboard includes a dedicated or non-dedicated first command key operatively connected to the processing means for automatically initiating the operations of the processing means involving the price(s) previously entered and determining a trading price range where trade order size(s) are determined for each price in the price range by dividing the amount of cash, margin, or buying power previously entered by each price in the price range, generating the first display signal upon entry of the price(s).

3. An electronic calculator as defined in claim 1 wherein the keyboard includes incremental “

speed key(s)” and

“

up/down arrow scroll key(s)”

operatively connected to the processing means for automatically initiating the operations of the processing means involving numeric values in the internal price set by the price previously entered through the keyboard, where the user can quickly change the previously entered price with positive and negative incremental price “

speed key(s)” and

“

up/down arrow scroll keys”

to arrive at a new price and obtain a new order size generating a display signal upon entry of the price(s) or depression of the “

up/down arrow scroll keys”

or “

speed key(s)”

. Method further comprising;

numeric means to input positive and negative price increment(s) in either decimal or fractional format.

input means for fractional and decimal price increment(s) that include “

manual input” and

“

pre-defined input”

methods using dedicated or non-dedicated digit entry key(s) or switch(es).

input means that include speed key(s) that are dedicated or non-dedicated digit entry key(s), pre-defined or manual input, or any combination of dedicated and non-dedicated digit entry key(s) including pre-defined and manual input, such as up/down arrow key(s), positive and negative decimal increment key(s), number key(s), decimal key, second function key(s), slash (/) key, or any combination thereof.

processing, storage, and display means to accommodate fractional or decimal price(s) and fractional or decimal price increment(s).

display signal with corresponding order size(s) and associated price(s).

display means for the numeric trading price(s) and price increment changes, enabling the trader to insure that same are accurately stored.

numeric means to input positive and negative price increment(s) in either decimals or fractions, allowing the user to view/or scroll by price using decimal or fractional price increment(s).

input, processor, storage, and display means that accommodates decimals and fractions for price increment(s).

said keyboard includes a “

Decimal—

Fractional”

selector switch for determining the mode of the device where the price(s) can either be in decimals or fractions.

said keyboard includes a “

Fractional Indicator”

switch that involves the price(s) previously entered and determining trading price increment(s) where fractional increment(s) are added to the previously entered price(s) arriving at a new price(s) that is then used to determine trade order size(s) by dividing the amount of cash, margin, or buying power previously entered by the new price(s), generating a display signal upon entry of the price(s) or depression of the fractional “

Up/Down Arrow Scroll Keys”

.

said keyboard includes a set of positive and negative decimal “

Speed Keys”

involving the price(s) previously entered and determining trading price increment(s) where decimal increment(s) are added to the previously entered price(s) arriving at a new price(s) that is then used to determine trade order size(s) by dividing the amount of cash, margin, or buying power previously entered by the new price(s), generating a display signal upon entry of the price(s) or depression of any of the decimal “

speed keys”

.

4. An electronic calculator as defined in claim 2 wherein the keyboard includes incremental “

speed key(s)” and

“

up/down arrow scroll key(s)”

operatively connected to the processing means for automatically initiating the operations of the processing means involving numeric values in the internal price or price range set by the price previously entered through the keyboard, where the user can quickly change the previously entered price with positive and negative incremental price “

speed key(s)” and

“

up/down arrow scroll keys”

to arrive at a new price within the internal price range and obtain a new order size generating a display signal upon entry of the price(s) or depression of the “

up/down arrow scroll keys”

or “

speed key(s)”

. Method further comprising;

numeric means to input positive and negative price increment(s) in either decimal or fractional format.

input means for fractional and decimal price increment(s) that include “

manual input” and

“

pre-defined input”

methods using dedicated or non-dedicated digit entry key(s) or switch(es).

input means that include speed key(s) that are dedicated or non-dedicated digit entry key(s), pre-defined or manual input, or any combination of dedicated and non-dedicated digit entry key(s) including pre-defined and manual input, such as up/down arrow key(s), positive and negative decimal increment key(s), number key(s), decimal key, second function key(s), slash (/) key, or any combination thereof.

processing, storage, and display means to accommodate fractional or decimal price(s) and fractional or decimal price increment(s).

display signal with corresponding order size(s) and associated price(s).

display means for the numeric trading price(s) and price increment changes, enabling the trader to insure that same are accurately stored.

numeric means to input positive and negative price increment(s) in either decimals or fractions, allowing the user to view/or scroll through a price range by decimal or fractional price increment(s).

input, processor, storage, and display means that accommodates decimals and fractions for price(s) increment(s).

said keyboard includes a “

Decimal—

Fractional”

selector switch for determining the mode of the device where the price(s) can either be in decimals or fractions.

said keyboard includes a “

Fractional Indicator”

switch that involves the price(s) previously entered and determining trading price increment(s) where fractional increment(s) are added to the previously entered price(s) arriving at a new price(s) that is then used to determine trade order size(s) by dividing the amount of cash, margin, or buying power previously entered by the new price(s), generating a display signal upon entry of the price(s) or depression of the fractional “

Up/Down Arrow Scroll Keys”

.

said keyboard includes a set of positive and negative decimal “

Speed Keys”

involving the price(s) previously entered and determining trading price increment(s) where decimal increment(s) are added to the previously entered price(s) arriving at a new price(s) that is then used to determine trade order size(s) by dividing the amount of cash, margin, or buying power previously entered by the new price(s), generating a display signal upon entry of the price(s) or depression of any of the decimal “

speed keys”

.

5. An electronic calculator that determines number of option(s) and contract(s) by premium, using cash, margin, and buying power stored amount(s), including multiplier. Said device comprising:

a case;

computer means mounted within the case including

a) memory means containing information relating to a trading, premium(s) where said processor means being responsive to said storage means to divide a trading premium(s) into the previously entered cash, margin, or buying power total, then dividing this resultant number by the previously entered multiplier to calculate a final resultant number of option(s) or contract(s); and

b) input entry means including a keyboard for manually entering a trading premium(s) and multiplier, and the amount of cash, margin, or buying power being traded; and

c) processing means responsive to a trading premium entered through the keyboard using dedicated or non-dedicated key(s) to obtain a resultant number of option(s) or contract(s), which is equal to the amount of cash, margin, or buying power previously entered through the keyboard divided by premium(s) previously entered through the keyboard, then divided by multiplier previously entered, and for generating a first display signal corresponding to the resultant number of option(s) or contract(s) and premium(s); and

numeric means for manually inputting amount(s) for cash, margin, buying power, and multiplier stored keys; and

numeric means for manually inputting trading premium(s); and

input means to select decimal or fractional mode of operation; and

input means to modify/or clear the numeric trading premium(s) including amount(s) for cash, margin, buying power, and multiplier; and

input means for fractional and decimal premium(s) that include “

manual input” and

“

pre-defined input”

methods using dedicated keys or non-dedicated digit entry key(s).

input, processor, storage, and display means that accommodates decimals and fractions for determining premium(s) and number of option(s) or contract(s).

processor means for calculating a number of option(s) or contract(s) for the previously entered premium(s), where said number of option(s) or contract(s) and premium(s) corresponds to the previously entered amount for cash, margin, and buying power, and multiplier, and at least calculating EQU1-3 and EQU8-13.

processor means for rounding down the resultant number of option(s) or contract(s) to the next whole number and a display means for viewing this rounded number(s).

processor means for determining an number of option(s) or contract(s) for the premium(s) previously entered through the keyboard, wherein said display means includes means for displaying the number of option(s) and premium(s) with descriptive acronyms.

memory means for storing trading premium(s), and a processor means being responsive to said storage means to divide trading premium(s) into the previously entered amount of cash, margin, buying power, and multiplier to calculate a resultant trade number of option(s) or contract(s).

display means for numbers indicative of the calculated number of option(s) or contract(s) including trading premium(s) and number of option(s) or contract(s), enabling the trader to review same.

display means for selectively displaying stored trading premium(s) and calculated number of option(s) or contract(s).

look-up table means for storing trade premium(s), so that trade premium(s) can be divided into the amount of previously entered cash, margin, buying power, and multiplier total, to determine number of option(s) or contract(s), at least calculating EQU1-3 and EQU23-29.

look-up table means for storing numeric value(s) that are responsive to the processor means to calculate trading premium(s) and number of option(s) or contract(s).

said keyboard includes a dedicated or non-dedicated first command key operatively connected to the processing means for automatically initiating the operations of the processing means involving the premium(s) previously entered and determining a number of option(s) or contract(s) by dividing the amount of cash, margin, buying power, and multiplier previously entered by premium(s) previously entered, generating the first display signal upon entry of the premium(s).

processor means at least calculating EQU1 through EQU84, and also calculating each variable of each equation EQU1 through EQU84 that can be stored and displayed

6. An electronic calculator as defined in claim 5 wherein trade premium(s) can be calculated between a maximum and minimum trading premium with a resultant trading premium range and means for calculating number of option(s) or contract(s) for each trading premium(s) within the premium range.

numeric means for manually inputting a trading premium range or processor means internally determining a premium range from the premium previously entered by user;

and

means for manually inputting numbers to modify/or clear the numeric trading premium range including amount(s) for cash, margin, buying power, and multiplier.

storage means wherein there exists a maximum number of records in an internal premium range determined by the premium previously entered through the keyboard;

storage means for storing individual trading premiums from the trading premium range, said processor means being responsive to said storage means to divide each trading premium of the premium range into the previously entered amount of cash, margin, buying power, and multiplier to calculate the resultant number of option(s) or contract(s).

processing, storage, and display means to accommodate fractional or decimal premiums within the premium range.

processor means for calculating number of option(s) or contract(s) for each premium in the premium range, each of said number of option(s) or contract(s) and premium corresponding to the inputted numeric amount for cash, margin, buying power, and multiplier, and at least calculating EQU1-3 and EQU8-13.

processor means for rounding down the resultant number of option(s) or contract(s) to the next whole number, for each number of option(s) or contract(s) calculation within the premium range, and a display means for viewing each rounded number.

processor means for determining the number of option(s) or contract(s) for each premium within the premium range, wherein said display means includes means for displaying the number of option(s) or contract(s) and premium with descriptive acronyms.

processor means that determines an internal premium range from the premium previously entered, and an input and display means to view and scroll through premium(s) and associated number of option(s) or contract(s) in the premium range.

processor means that determines an internal premium range from the previously entered high-premium and low-premium of the premium range, and a display and input means to view and scroll through premium(s) and associated number of option(s) or contract(s) in the premium range.

numeric input means using dedicated or non-dedicated key(s) or switch(es), or a combination of dedicated and non-dedicated key(s) or switch(es), to enter a trading premium range by entry of a single trading premium, then depression of a dedicated or non-dedicated key that activates the processor means to determine an internal trading premium range and resultant number of option(s) or contract(s) for each premium in the premium range.

numeric input means to enter a trading premium range by entry of a low-premium followed by the depression of a dedicated or non-dedicated key that stores this entry, then entry of a high-premium followed by the depression of a dedicated or non-dedicated key that stores this entry, then depression of a dedicated or non-dedicated key that activates the processor means to determine an internal trading premium range and resultant number of option(s) or contract(s) for each premium in the premium range.

numeric input means to enter a trading premium range by entry of a low-premium, followed by the depression of a dedicated or non-dedicated key to act as a separator, then entry of a high-premium, followed by depression of a dedicated or non-dedicated key that activates processor means to determine the premium range between previously entered low-premium and high-premium and resultant number of option(s) or contract(s) for each premium in the premium range.

numeric input means to enter a single trading premium followed by depression of a dedicated or non-dedicated key that activates the processor means to determine a premium range and resultant number of option(s) or contract(s) by premium, based upon previously entered premium, cash, margin, buying power, and multiplier previously stored amount(s), and display means to view and scroll through all number of option(s) or contract(s) and premium(s) in the premium range with the first record displaying premium previously entered and calculated number of option(s) or contract(s); and

display means for quickly viewing/and scrolling through number of option(s) or contract(s) by premium within a premium range and displaying these number of option(s) or contract(s) with associated premium(s).

display means for selectively displaying premium(s) of the stored trading premium range and resultant number of option(s) or contract(s).

look-up table means for storing numeric trading premium(s) and premium range(s), so that each individual trading premium within the premium range can be divided into the amount of previously entered cash, margin, buying power, and multiplier total, to determine number of option(s) or contract(s), at least calculating EQU1-3 and EQU23-29.

look-up table means for storing numeric value(s) that are responsive to the processor means to calculate trading premium(s), trading premium range(s), and number of option(s) or contract(s).

said keyboard includes a dedicated or non-dedicated first command key operatively connected to the processing means for automatically initiating the operations of the processing means involving the premium(s) previously entered and determining a trading premium range where number of option(s) or contract(s) are determined for each premium in the premium range by dividing the amount of cash, margin, buying power, and multiplier previously entered by each premium in the premium range, generating the first display signal upon entry of the premium(s).

7. An electronic calculator as defined in claim 5 wherein the keyboard includes incremental “

speed key(s)” and

“

up/down arrow scroll key(s)”

operatively connected to the processing means for automatically initiating the operations of the processing means involving numeric values in the internal premium set by the premium previously entered through the keyboard, where the user can quickly change the previously entered premium with positive and negative incremental premium “

speed key(s)” and

“

up/down arrow scroll keys”

to arrive at a new premium and obtain a new number of option(s) or contract(s) generating a display signal upon entry of the premium(s) or depression of the “

up/down arrow scroll keys”

or “

speed key(s)”

. Method further comprising;

numeric means to input positive and negative premium increment(s) in either decimal or fractional format.

input means for fractional and decimal premium increment(s) that include “

manual input” and

“

pre-defined input”

methods using dedicated or non-dedicated digit entry key(s) or switch(es).

input means that include speed key(s) that are dedicated or non-dedicated digit entry key(s), pre-defined or manual input, or any combination of dedicated and non-dedicated digit entry key(s) including pre-defined and manual input, such as up/down arrow key(s), positive and negative decimal increment key(s), number key(s), decimal key, second function key(s), slash (/) key, or any combination thereof.

processing, storage, and display means to accommodate fractional or decimal premium(s) and fractional or decimal premium increment(s).

display signal with corresponding number of option(s) or contract(s) and associated premium(s).

display means for the numeric trading premium(s) and premium increment changes, enabling the trader to insure that same are accurately stored.

numeric means to input positive and negative premium increment(s) in either decimals or fractions, allowing the user to view/or scroll by premium using decimal or fractional premium increment(s).

input, processor, storage, and display means that accommodates decimals and fractions for premium increment(s).

said keyboard includes a “

Decimal—

Fractional”

selector switch for determining the mode of the device where the premium(s) can either be in decimals or fractions.

said keyboard includes a “

Fractional Indicator”

switch that involves the premium(s) previously entered and determining trading premium increment(s) where fractional increment(s) are added to the previously entered premium(s) arriving at a new premium(s) that is then used to determine number of option(s) or contract(s) by dividing the amount of cash, margin, buying power, and multiplier previously entered, by the new premium(s), generating a display signal upon entry of the premium(s) or depression of the fractional “

Up/Down Arrow Scroll Keys”

.

said keyboard includes a set of positive and negative decimal “

Speed Keys”

involving the premium(s) previously entered and determining trading premium increment(s) where decimal increment(s) are added to the previously entered premium(s) arriving at a new premium(s) that is then used to determine number of option(s) or contract(s) by dividing the amount of cash, margin, buying power, and multiplier previously entered by the new premium(s), generating a display signal upon entry of the premium(s) or depression of any of the decimal “

speed keys”

.

8. An electronic calculator as defined in claim 6 wherein the keyboard includes incremental “

speed key(s)” and

“

up/down arrow scroll key(s)”

operatively connected to the processing means for automatically initiating the operations of the processing means involving numeric values in the internal premium or premium range set by the premium previously entered through the keyboard, where the user can quickly change the previously entered premium with positive and negative incremental premium “

speed key(s)” and

“

up/down arrow scroll keys”

to arrive at a new premium within the internal premium range and obtain a new number of option(s) or contract(s) generating a display signal upon entry of the premium(s) or depression of the “

up/down arrow scroll keys”

or “

speed key(s)”

. Method further comprising;

numeric means to input positive and negative premium increment(s) in either decimal or fractional format.

input means for fractional and decimal premium increment(s) that include “

manual input” and

“

pre-defined input”

methods using dedicated or non-dedicated digit entry key(s) or switch(es).

input means that include speed key(s) that are dedicated or non-dedicated digit entry key(s), pre-defined or manual input, or any combination of dedicated and non-dedicated digit entry key(s) including pre-defined and manual input, such as up/down arrow key(s), positive and negative decimal increment key(s), number key(s), decimal key, second function key(s), slash (/) key, or any combination thereof.

processing, storage, and display means to accommodate fractional or decimal premium(s) and fractional or decimal premium increment(s).

display signal with corresponding number of option(s) or contract(s) and associated premium(s).

display means for the numeric trading premium(s) and premium increment changes, enabling the trader to insure that same are accurately stored.

numeric means to input positive and negative premium increment(s) in either decimals or fractions, allowing the user to view/or scroll through a premium range by decimal or fractional premium increment(s).

input, processor, storage, and display means that accommodates decimals and fractions for premium(s) increment(s).

said keyboard includes a “

Decimal—

Fractional”

selector switch for determining the mode of the device where the premium(s) can either be in decimals or fractions.

said keyboard includes a “

Fractional Indicator”

switch that involves the premium(s) previously entered and determining trading premium increment(s) where fractional increment(s) are added to the previously entered premium(s) arriving at a new premium(s) that is then used to determine number of option(s) or contract(s) by dividing the amount of cash, margin, buying power, and multiplier previously entered by the new premium(s), generating a display signal upon entry of the premium(s) or depression of the fractional “

Up/Down Arrow Scroll Keys”

.

said keyboard includes a set of positive and negative decimal “

Speed Keys”

involving the premium(s) previously entered and determining trading premium increment(s) where decimal increment(s) are added to the previously entered premium(s) arriving at a new premium(s) that is then used to determine number of option(s) or contract(s) by dividing the amount of cash, margin, buying power, and multiplier previously entered by the new premium(s), generating a display signal upon entry of the premium(s) or depression of any of the decimal “

speed keys”

.

9. An electronic calculator that determines unknown/or not stored variables for a variety of option(s) trade calculations to solve option(s) trading tasks. Said calculator comprising:

numeric means for inputting option trade variables (number of options/calls or puts, premium, strike price, number of shares, multiplier, settlement value-automatic, settlement value non-automatic, cap interval, cap price, in money, total option dollar amount, # of options, premium per share, exercise price, etc.) Please refer to description of keys.

display means for viewing the calculated/or stored option trading variables (number of options/calls or puts, premium, strike price, number of shares, multiplier, settlement value-automatic, settlement value non-automatic, cap interval, cap price, in money, total option dollar amount, # of options, premium per share, exercise price, etc. means for displaying numeric option variables, enabling the trader to insure that same are accurately stored.

processor means for individually determining an options trading variable (number of options/calls or puts, premium, strike price, number of shares, multiplier, settlement value-automatic, settlement value non-automatic, cap interval, cap price, in money, total option dollar amount, # of options, premium per share, exercise price, etc.) that was not stored/unknown by at least calculating EQU4,6,8,10,27-29,33,34.

storage means for storing option trading variables from numeric option input means, said processor means being responsive to said storage means to calculate individual variables of an options trade that were not stored/unknown.

processor means for rounding (up or down) each calculation to the next whole number.

means for displaying numbers indicative of the calculated trade option variables, enabling the trader to review same.

means for manually inputting numbers to modify/or clear option trade variables/or functions including pre-set amount for cash, margin, or total buying power.

means for determining option trade variables for each calculation, wherein said display means includes means for displaying the option trade variables with descriptive acronyms.

processor means that determines a variety of trade option variables for American and European option types.

input means further includes means for overriding/or clearing option variable input enabling the trader to redefine/re-input these variables.

processor means at least calculating EQU1 through EQU84, and also calculating each variable of each equation EQU1 through EQU84 that can be stored and displayed

10. An electronic calculator that determines unknown/or not stored variables for a variety of margin, percentage, and cash flow calculations that have been modified specifically to solve trading and investment tasks for all types of securities. Said calculator comprising:

numeric means for inputting rate of return variables (FMRR %, IRR %, MIRR %, Net Present Value NPV, gain and loss, total dividends, average quarterly dividends, yield %, fees, total tax %, federal &

state tax %, purchase price, current price, number of shares, term, current share price, etc.).

processor means for individually determining each rate of return (internal rate of return and financial mgmt rate of return) variable (FMRR %, IRR %, gain and loss, total dividends, average quarterly dividends, yield %, fees, total tax %, federal &

state tax %, purchase price, current price, number of shares, term, current share price, etc.) that was not stored/unknown by at least calculating EQU5,7,9,11,23-26,36-38,51-62,63-84.

processor means to determine an income stream and nominal interest rate when calculating the internal rate of return. Means to calculate and re-calculate the present value of an income stream, as the discount rate is changed. The calculator will automatically set the net present value as close to zero as possible, thereby determining the internal rate of return.

display means for viewing the calculated/or stored rate of return (internal rate of return and financial mgmt rate of return) variable (FMRR %, IRR %, gain and loss, total dividends, average quarterly dividends, yield %, fees, total tax %, federal &

state tax %, purchase price, current price, number of shares, term, current share price, etc.) that was stored or not stored/unknown.

processor means for rounding (up or down) each calculation to the next whole number.

means for displaying numeric rate-of-return variables, enabling the trader to insure that same are accurately stored.

storage means for storing rate of return trading variables, from numeric rate of return input means, said processor means being responsive to said storage means to calculate individual variables for rates of return that were not stored/unknown.

means for displaying numbers indicative of the calculated rate of return variables, enabling the trader to review same.

means for manually inputting numbers to modify/or clear rate-of-return variables/or functions including pre-set amount for cash, margin, or total buying power.

means for determining rate-of-return trade variables for each calculation, wherein said display means includes means for displaying the rate-of-return variables with descriptive acronyms

input means further includes means for overriding/or clearing rate-of-return input enabling the trader to redefine/re-input these variables.

processor means at least calculating EQU1 through EQU84, and also calculating each variable of each equation EQU1 through EQU84 that can be stored and displayed