ETF Options Trading Points to Caution
March 22, 2012 at 11:19 AM EDT
Options trading in large stock and currency ETFs shows some investors are moving toward a risk-off stance as the S&P 500 drops back below the key 1,400 level. Buyers of protection via downside puts in SPDR S&P 500 (NYSEArca: SPY) emerged on Wednesday as equities finished near their lows for...