Securities valuation system

• US 4,566,066 A
• Filed: 06/04/1982
• Issued: 01/21/1986
• Est. Priority Date: 08/11/1972
• Status: Expired due to Term

• Current Assignee: Frederic C. Towers
• Original Assignee: Frederic C. Towers
• Inventors: Towers, Frederic C.
• Primary Examiner(s): Smith, Jerry
• Assistant Examiner(s): Jablon, Clark A.
• Application Number:
  US06/385,323
• Time in Patent Office: 1,327 Days
• Field of Search: 364/408, 364/900 MS File
• US Class Current: 705/36.00R
• CPC Class Codes: G06F 16/90348 by searching ordered data, e.g. alpha-numerically ordered data
• CPC Class Codes: G06Q 40/06 Asset management; Financial planning or analysis

Abstract

This discloses a system operating on a general purpose digital computer which produces securities portfolio valuation schedules for multiple simultaneous users. The computer maintains securities information in system-wide files which are updated, both electronically and manually, on a daily basis. The system permits each user to store information about his portfolios, as well as information about supplemental securities not contained in the system-wide files.

Claims

1. A stored program data processing system including a digital computer having a memory and logic means for storing and retrieving and displaying information about investment securities, the combination including:

(a) a plurality of input/output terminals operatively connected to said system;

(b) a memory providing a plurality of data storage areas for data;

(c) a first data storage area for system data comprising records of data hereinafter termed priced securities;

(d) a second data storage area comprising records of data hereinafter termed a user file;

(e) each user file including an area reserved for the date of the data, the identity of the security, and the amount of the security holding;

(f) key means to access and edit each of said priced security records;

(g) means to access and edit each of said user file records;

(h) a second key means to access each of said priced security records;

(i) a plurality of conversion means for translation of a signal of one key means into a signal for another key means;

(j) a first conversion means for translating a key representing a prior memory address of a priced security to a current memory address;

(k) a second conversion means for translating an alphameric key representing a prior security identification into a current alphameric key representative of said security;

(l) a third conversion means for converting the data in the amount field in a user file based on its date of entry to data corresponding to the current amount of said holding;

(m) means to retrieve a selected user file;

(n) means to retrieve corresponding data from said priced securities files;

(o) means to compute and display the current value of said selected portfolio of securities.