U.S. stocks were gripped by heavy selling on Friday, as a hotter-than-expected inflation reading added to angst over trade war. Wall Street's fear gauge spiked, and traders flocked to bonds, sending Treasury yields lower. 

The Cboe Volatility Index (VIX) surged +15.8% to 21.64 points in afternoon trade and was on track for its highest close in over a week.

Meanwhile, in the fixed-income markets, U.S. Treasury yields fell across the board. The benchmark 10-year yield (US10Y) slid 10 basis points down to 4.26%, while the shorter-end U.S. 2-year yield (US2Y) dipped 8 basis points to 3.93%. 

See below some popular related exchanged-traded funds:: 

Volatility Funds: (BATS:VXX), (BATS:VIXY), (VXZ), (BATS:VIXM), (BATS:UVXY), (BATS:SVXY), and (BATS:UVIX). 

Treasury Funds: (NASDAQ:TLT), (NYSEARCA:TLH), (NASDAQ:IEF), (NASDAQ:IEI), (NASDAQ:SHY), (NYSEARCA:SGOV), (NYSEARCA:SCHO), and (NYSEARCA:BIL). 

Fixed Income ETFs: (NYSEARCA:AGG), (NASDAQ:BND), (NASDAQ:VCIT), (NYSEARCA:MUB), (NASDAQ:MBB), (NYSEARCA:JNK), (NYSEARCA:LQD), (NYSEARCA:HYG), and (NYSEARCA:TIP).