In volatility-linked products, iPath S&P 500 VIX Short-Term Future ETN (NYSEArca: VXX) was up 7% in Tuesday’s premarket.

Investors were also flocking to U.S. Treasury bonds as yields on the 10-year note dropped below 2%. The iShares Barclays 20+ Year Treasury Bond (NYSEArca: TLT) added 1.3% in preopen trade.

The dollar was also higher against most rivals even though gold prices rallied. PowerShares DB US Dollar Bullish (NYSEArca: UUP) rose 1% to $21.44 a share. The currency ETF was poised to rise above its 50-day moving average.

SPDR S&P 500 ETF


Full disclosure: Tom Lydon’s clients own SPY.