Grail (GRAL) options traded 510 contracts on October 21, 2026 (414 calls and 96 puts, a put/call ratio of 0.23), compared with a 30-day average of 3,470. Options price a move of about ±5.6% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 89.2%
Implied move by the nearest expiration: ±5.6%
Option volume: 510 contracts (414 calls, 96 puts); 30-day average 3,470

Data as of October 21, 2026.

GRAL Option Breakdown

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