Gossamer Bio (GOSS) options traded 40 contracts on October 16, 2026 (4 calls and 36 puts, a put/call ratio of 9.00), compared with a 30-day average of 215. Options price a move of about ±7.1% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 88.9%
Implied move by the nearest expiration: ±7.1%
Option volume: 40 contracts (4 calls, 36 puts); 30-day average 215

Data as of October 16, 2026.

GOSS Option Breakdown

A breakdown of key statistics for each option expiration listed for GOSS. 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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