Stocks sold off for the last day of January and Ben Willis of Albert Fried expects more selling to come. He believes the market will deliver a full correction of 10%. He attributes the trimming of losses to the closing of European markets and some traders unwilling to leave open positions for the weekend. Willis has been calling for a correction for some time and believes the buyers will reenter the market after it drops 10%. He also pointed to high levels of mutual fund selling.