Options market report: October 2025
Median 30-day implied volatility across the 160 most-traded options names went from 45.0% at the start of October 2025 to 47.1% at the close (+2.1 pts), with 66% of names re-pricing higher. The middle half of the market sits between 31% and 73%. The biggest riser was TTD (53% → 93%); the biggest faller ENPH (90% → 57%).
Implied volatility, month end
- Median IV30, start
- 45.0%
- Median IV30, end
- 47.1%
- 25th–75th pct
- 31% – 73%
- Names rising
- 66%
Biggest IV risers
Biggest IV fallers
Richest and cheapest options, and the IV premium leaders
Method
IV30 is the at-the-money implied volatility of the expiration nearest 30 days (call and put averaged), solved from closing option prices and stored once per session for every ticker in the universe since July 2025. HV30 is 30-trading-day close-to-close realized volatility. Month start and end are each ticker's first and last stored session in the month. Dealer gamma sessions come from the nightly capture of the full SPY and QQQ chains. Names with fewer than 30 stored tickers in a month produce no IV section.
Cite this report
OptionScout, “Options market report: October 2025”, https://optionscout.ai/reports/options-market/2025-10. Data is free to quote with a link; the per-ticker pages behind every number are at /implied-volatility and /gamma-exposure.
Other months: October 2026 · September 2026 · August 2026 · July 2026 · June 2026 · May 2026 · all reports
Not advice.