 The CBOE Volatility Index and VIX-related exchange traded funds spiked Thursday as the markets cogitated over the ramifications of the Federal Reserves latest rate hike and the potential for an economic recession. The iPath Series B SP 500 VIX Short Term Futures ETN NYSEArca: VXX increased 5.9 and the ProShares VIX Short-Term Futures ETF NYSEArca: VIXY . 