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Volume and the Seasonality Trap

Does seasonality matter to your portfolio? Chris Johnson, CEO and chief investment strategist at Johnson Research Group says it does, so our quant team went back and looked at volume for the last 10 years for the month of August.

What did we find? Volume has risen quite dramatically over the past 10 years, from 167 million shares in August, 1999 to 950 million shares last summer. The S&P , Dow and Nasdaq are all up roughly 9 percent since July 1.

While volumes have risen, Johnson says August and September still have remained the two worst performing months of the year for stocks on average.

So what's an investor to do? Watch the video to see what Johnson has to say: