Tuesday's market moves was one of the more disturbing days of late, says Goldman Sachs pro

By Steve GelsiTuesday was a disturbing day on Wall Street, says one expert.How bad could a day when the S&P 500 SPX ended less than 0.2% lower really be?Rich Privorotsky, head of Delta One trading at Goldman Sachs, called it "one of the more disturbing cross-asset days of this episode."While semico…