Phathom Pharmaceuticals (PHAT) options traded 37 contracts on October 22, 2026 (12 calls and 25 puts, a put/call ratio of 2.08), compared with a 30-day average of 60. Options price a move of about ±3.0% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 62.6%
Implied move by the nearest expiration: ±3.0%
Option volume: 37 contracts (12 calls, 25 puts); 30-day average 60

Data as of October 22, 2026.

PHAT Option Breakdown

A breakdown of key statistics for each option expiration listed for PHAT. View implied volatility, volatility skew, volume, open interest, straddle premiums, and liquidity -- including bid/ask spread and NBBO bid/ask sizes. Includes links to the option chain, as well as numerous detailed charts.

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