Today the major stock market indexes are rallying sharply higher. Traders should take notice that the trading volume is extremely light today. In the prior three trading sessions the volume in the stock market was much more heavier than today and that resulted in a decline in the major stock indexes. It is prudent to always remember the old market adage that states, "never short a dull market." Dull market means a light volume market and today is very light especially compared to the prior three trading sessions.