The Fed jitter over, another disturbing event ahead

The market will brace a quarterly event known as triple witching, roughly $3.5 trillion of single-stock and index-level options are set to expire, according to Goldman Sachs Group Inc. At the same time, more near-the-money options are maturing than at any time since 2019 -- suggesting a bevy of investors will actively trade around those positions.

And once again, this triple witching coincides with a rebalancing of benchmark indexes including the S&P 500 -- a combination that tends to spark single-day volumes that rank among the highest of the year. According to an estimate from Howard Silverblatt, senior index analyst at S&P Dow Jones Indices, the rebalance in the index alone could spur $33 billion of stock trades, reported by Bloomberg.