triple witching hour การใช้

• "But secondary indexes showed late strength on the triple witching hour, " the quarterly deadlines to trade stock futures and options.
• "It's like a triple witching hour for the computer industry, a confluence of factors, none of which are very positive for the poor PC manufacturer,"
• Analysts attributed the heavier-than-usual trading to tomorrow's " triple witching hour, " when stock options, options on index futures and index futures expire simultaneously.
• They peer not at the intrinsic values of stocks but at the moods and passions of all other market players and at the compounding effects of the computerized buying and selling during double or triple witching hours.