When the S&P 500 leapt more than 5% in one day in November, analysts pinned the move on a better-than-expected inflation print. But derivatives traders identified an additional culprit: a US$7m wager ...

Volumes in equity options that expire on the same day they’re traded have reached all-time highs, as a surge in retail and institutional activity has made these ultra-short-dated derivatives the most ...

Options trading volumes are booming again in 2025, as the industry heads toward what would be a sixth straight year of record activity. One subset of the market has been particularly active of late: ...