Admittedly, Nov. 27 could be a rough day for investors that follow that advice, but the stock market has never failed to recoup its losses following past drawdowns. Conversely, investors that sell stocks to avoid a possible decline may miss a very good day, and may hesitate to buy again while waiting for a correction that never comes.

The major indexes fell before the Thanksgiving holiday due some tech turkeys, but came off lows. Nvidia stock fought back to hold key support.