Fear & Greed — Lawrence Light

It's the impossible dream of every trader and dealer on Wall Street--an accurate means to predict the ups and downs of the stock market. The Reiner sisters have made that dream a reality in the form of a computer program they call Goldring. The sisters have kept Goldring their little secret, even when a magazine story by financial reporter Karen Glick showcases their sudden wealth. Everything was working so well, but now one of the sisters has been found murdered, Goldring is missing--and Karen Glick has a hit man on her trail.