The Derivative

WTF?! Will 0DTE Cause Gammageddon? With Mike Green and Craig Peterson

Mar 9, 2023
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INSIGHT

0DTE Volume Has Exploded

  • Zero-day-to-expiry (0DTE) options surged from ~5–10% to ~40–50% of daily option volume on many days.
  • The shift mostly reflects replacement of longer-dated contracts, not just added retail activity.
INSIGHT

Daily Selling Improves Edge But Raises Frequency Risk

  • Selling short-dated options repeatedly raises expected returns because time decay accelerates as expiry nears.
  • Traders must downsize each trade since the payoff behaves more like coin flips intraday.
ADVICE

Treat Clearing Transparency As Priority

  • Monitor clearing and reporting: 0DTE contracts can expire before they clear, hiding exposures from brokers and auditors.
  • Expect demands for faster clearing or new restrictions to address this visibility gap.
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