Witching Day: Increased Volatility Possible As Futures, Options Contracts Expire By Robert Witching Day: Increased Volatility Possible As Futures, Options Contracts Expire Forbes Volume spikes on sector reshuffle, quadruple witching Reuters Expect volume spike on sector reshuffle, quadruple witching Kitco News Full coverage Brought to you by Google News. Read the rest of the article here. Facebook Twitter Google+ Pinterest