Stocks ratcheted lower Friday in fast trade, with the indexes suffering their biggest percentage losses since late January. The Nasdaq and the S&P 500 skidded 1.1% and 1.4%, respectively. The IBD 50 lost 1.5%. Volume rose on both major exchanges. The action slapped both indexes with a distribution day, the footprint of institutional selling, and shifted IBD’s market outlook to uptrend under pressure.