The behavior of the US and World Stock Markets is caused by Fear of the Big Traders on days when the market suffers a loss greater than 2 sigma, by Hope when the market enjoys an increase greater than 2 sigma, and changes very little when the Big Traders are Cautious during a trading day.To cause wealth to grow, we must use options trading strategies that make profits, and limit or avoid losses when the market makes sudden, erratic movements as well My software program, SelfAdapJonWeeklyCndrs has evolved during the last 25 years of options trading by your author: Dr. Jon Schiller. I started with a London Broker trading FTSE-100 options placing orders by FAX and ended with TradeKing as my broker placing orders using their automated trading websiteI modified my software during my 25 years of trading as the market changed.