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Quadruple Witching Moves Jump-Start Stock Market Volume

  • Slow trading earlier in the week amid anxiety over Fed, yields
  • Index rebalancing adds fuel to busy session of trading
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Volume, Volatility Jump Amid Quadruple Witching Moves
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Equity traders who had been frustrated by recent sleepy volumes just got a big liquidity boost.

Stock transactions spiked Friday amid a quarterly event colloquially known as quadruple witching, when options and futures on indexes and equities expire. More than 17 billion shares changed hands on exchanges, 20% above the three-month average, as the S&P 500 erased an earlier decline of 0.7% before closing the session with a slight loss.