| 释义 |
triple witching hour
triple witching hourn. The hour before the closing of the stock market on the third Friday of March, June, September, or December, when stock index options, stock index futures, and stock options expire, known for its high trading volume and volatile prices.tri′ple witch′ing hour`
n. the last hour of trading on the New York Stock Exchange on the four Fridays each year when stock options, stock index futures, and options on such futures simultaneously expire: regarded as a time of extreme volatility in trading. [1985–90] triple witching hour
Triple witching hourThe four times a year that the S&P futures contract expires at the same time as the S&P 100 index option contract and option contracts on individual stocks. It is the last trading hour on the third Friday of March, June, September, and December, when stock options, futures on stock indexes, and options on these futures expire concurrently. Massive trades in index futures, options, and underlying stock by hedge strategists and arbitrageurs cause abnormal activity (noise) and volatility.Triple WitchingThe last hour of trade on an exchange on the third Friday of March, June, September, and December. It is the time of expiration for three types of standardized contracts: stock options, stock index options, and stock index futures. Investors often unwind their positions on these contracts during or immediately before triple witching hour, which leads to increased trading volume on those hours. See also: Quadruple witching day.triple witching hour The hour before the market closing when options and futures on stock indexes expire on the same day, thereby setting off frenzied trading in futures, options, and underlying securities. Traders and arbitrageurs unwind investment positions and produce large price movements in securities. The triple witching hour occurs on the third Fridays of March, June, September, and December. See also expiration effect. |