Around 95 stocks when hit the stop loss sell or stop loss buy order go down or up by 0.5 percent respectively. The five stocks which have behaved opposite to the theory will definately will follow this theory the next day and also for more consecutive days .This factor u must use to minimize ur losses u made on that particular day when the stock behaved the opposite way. This ia explained in Cash management and stop losses.
Around 70 to 80 stocks go up or down 0.7 to 1.2 percent after hitting the stop loss buy or stop loss sell orders. (Here there is a risk that the price may not go in a single stroke down or up but It will go.)
You must trade in those stocks which have a turnover of around 4 to 5 crores or above daily in trading and having short selling. You must be expert in execution of orders and accurate in ur calculations. You should not panic at any time
Cash management and stop loss
How I trade and put my stop losses I take in 20 stocks for trading . I sell or buy one lakh worth of shares of a particular comp. (Initial amount which I double as per the requirement)
Now suppose for a stock say ONGC I have my orders as below
Sell below price A and buy at B
Buy above price C and sell at D