Stocks got stubborn Friday, refusing to give back any of the previous session’s big gains. The Nasdaq tacked on 0.3%, while the S&P 500 and the Dow Jones industrial average rose 0.5% and 0.4%, respectively. The IBD 50 added 0.7%. Volume was lower on both major exchanges. The quiet volume was somewhat surprising. Friday was an expirations day, which tends to boost volume.