 The Cboe Volatility Index and VIX-related exchange traded funds surged Monday as equity markets reeled and investors turned risk off in face of rising Covid-19 Delta variant infections. On Monday, the iPath Series B SP 500 VIX Short Term Futures ETN NYSEArca: VXX increased 14.3 and the ProShares VIX Short-Term Futures ETF NYSEArca: VIXY advanced 14.5, . 