Often when a stock cannot catch a bid or rally higher with the major indexes it is signaling weak relative strength. Stocks that have or signal weak relative strength compared to the market are good candidates to be sold short on bounces. For example, FSLR the leading solar stock has not been able to rally with the NSADAQ or the other major indexes. These are the kind of stocks that you can watch for small bounces and take short positions. Remember it is prudent to always use stops as stocks can do anything at anytime.