Protagonist Therapeutics (PTGX) options traded 86 contracts on October 16, 2026 (54 calls and 32 puts, a put/call ratio of 0.59), compared with a 30-day average of 73. Options price a move of about ±2.5% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 37.7%
Implied move by the nearest expiration: ±2.5%
Option volume: 86 contracts (54 calls, 32 puts); 30-day average 73

Data as of October 16, 2026.

PTGX Option Breakdown

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