While the larger stock brokers have seen reduced profits,the smaller ones have had to shut down or sell.This trend has been exacerbated last year with the rise of computer controlled algorithmic trading.Most of these small brokers which used arbitraging strategy to generate profits have seen their main business evaporate.Retail investors in India have also avoided the stock market which has become a corruption landmine.With even top institutions like GMO,Goldman becoming victims of frauds,individual investors have no chance.Also market operators have made the Indian stock market a pump and dump heaven even as SEBI takes a long time to crack down on the abuses.