Stocks showed determination Friday as reports of a Russia-Ukraine military clash failed to do much damage. The Nasdaq rose 0.3% after falling as much as 0.6% on the midmorning scare. The S&P 500 closed flat. The IBD 50 advanced 0.3%. Volume rose across the board. Friday was an options expirations day, which often lifts volume. With the market only recently turning to a confirmed uptrend, keeping the uptrend alive is job No. 1.