Patents Assigned to Westport Financial LLC
  • Patent number: 6832210
    Abstract: A process for implementing a market neutral relative value strategy to provide up-to-the-minute equity trading recommendations includes selecting pairtrades, each having both high correlation coefficient and high de-trended correlation coefficient. The de-trended coefficient is determined for a time interval selected such that a starting price of one of the stocks of a pairtrade is substantially equal its ending price. The process further includes calculating an optimal financial hedge ratio by determining regression slopes of the stocks in each selected pairtrade with respect to one another. The selected pairs are further compared with a plurality of templates to select only valid pairtrades whose amplitude and number of crosses through and deviations from the regression line match at least one of the templates. Applying a modified LaGrange-Urenbeck process to determine the optimal cut-loss and profit taking boundaries further optimizes each of the valid pairtrades.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: December 14, 2004
    Assignee: Westport Financial LLC
    Inventor: Bin Li
  • Patent number: 6735580
    Abstract: A neural network based universal time series prediction system for financial securities includes a pipelined recurrent ANN architecutre having a plurality of identical modules to first adjust internal weights and biases in response to a first training set representing a nonlinear financial time series of samples of a financial quantity and a target value, and then determine and store an estimated prediction error of the ANN in order to adjust short time stock price predictions in accordance with the stored prediction error. The prediction system is also designed to output upper and lower prediction bounds within a confidence region.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: May 11, 2004
    Assignee: Westport Financial LLC
    Inventors: Liang Li, Yi Tang, Bin Li, Xiaohua Wu
  • Patent number: 6453303
    Abstract: A system is provided for automatically generating and displaying market analysis related to financial assets whereby the analysis is provided for substantially all financial assets. The system includes a computer, database accessible by the computer and having stored thereon historical and real time data relating to a financial asset, and software executing on the computer for generating and displaying market analysis. The market analysis may, but not necessarily, include historical and real time data, a measure of liquidity and volatility of a financial asset, a measure of a financial asset's historical performance, an analysis of a financial asset's return in relation to its risk, and computed correlation coefficients and analysis of relationships between a financial asset and its market or market sectors.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: September 17, 2002
    Assignee: Westport Financial LLC
    Inventor: Bin Li