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Automated portfolio management system with internet datafeed

  • US 6,064,985 A
  • Filed: 01/21/1998
  • Issued: 05/16/2000
  • Est. Priority Date: 01/21/1998
  • Status: Expired due to Fees
First Claim
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1. An automated method of managing an investment portfolio which contains shares of stock purchased at various stock prices based on an index, and managed by an automated data processing system, comprising:

  • linking said automated manager by a data link to current stock information;

    selecting an index which contains selected stocks in a ratio, against which to mirror a stock portfolio;

    establishing portfolio parameters for need for and level of insurance protection, and mix of strike dates of options sold;

    purchasing stock which is listed on said index to form an investment portfolio which is representative of said index;

    selling covered calls on said stock in said stock portfolio to receive a premium;

    using said premium from said covered calls to purchase additional stock, and selling covered calls on said additional stock to receive a premium;

    using a means of determining an at-risk value of said portfolio which is to be insured from loss by a purchase of puts;

    using a means of determining an amount of insurance to be purchased to insure said at-risk value of said portfolio against loss;

    purchasing index puts which if exercised will be worth at least said at-risk value plus a safety factor, as insurance against a decrease in stock prices;

    using a means of determining a maximum amount to be borrowed against said portfolio which is performed by calculating a formula
    
    
    space="preserve" listing-type="equation">(E-S)(1.00-D)(0.5)+(0.90G)-I=Maximum Amount of Borrowingwhere E equals long market value of portfolio less U.S.Government securities;

    S equals short market value of securities;

    D equals percent of market theoretical drop possible under extreme conditions expressed as a decimal;

    G equals total value of U.S. Government Securities; and

    I equals the value of index puts in the portfolioborrowing a maximum amount against said stock portfolio by purchasing stock on margin and selling covered calls on said stock purchased on margin; and

    adjusting said at-risk value and amount of insurance to be purchased to account for additional stock purchased on margin; and

    periodically monitoring said portfolio for compliance with portfolio parameters.

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