Option chain for Altimmune (ALT): calls and puts for every expiration and strike, with quotes, volume, open interest, implied volatility and greeks. As of Oct 20, 2026, ALT had 12 option expirations, from Oct 23, 2026 to Jan 19, 2029, and 1,621 contracts traded that day. The nearest expiration, Oct 23, 2026, had an at-the-money implied volatility of 47.9% (-18% on the day) and 79 contracts traded; the busiest was Nov 20, 2026, with 536.

For the latest figures, see ALT options overview.

Key numbers

Expirations: at-the-money implied volatility, change on the day, volume

Oct 23, 2026 (3 days): ATM IV 47.9% (-18%), volume 79
Oct 30, 2026 (10 days): ATM IV 47.9% (-18%), volume 52
Nov 6, 2026 (17 days): ATM IV 47.9% (-18%), volume 12
Nov 13, 2026 (24 days): ATM IV 70.7% (+21%), volume 0
Nov 20, 2026 (31 days): ATM IV 58.0% (-2%), volume 536
Nov 27, 2026 (38 days): ATM IV 47.9% (-18%), volume 5
Dec 18, 2026 (59 days): ATM IV 62.5% (+13%), volume 249
Jan 15, 2027 (87 days): ATM IV 78.8% (+36%), volume 356
Mar 19, 2027 (150 days): ATM IV 87.6% (+38%), volume 14
Jun 17, 2027 (240 days): ATM IV 75.7% (+11%), volume 63
Jan 21, 2028 (458 days): ATM IV 83.4% (+11%), volume 237
Jan 19, 2029 (822 days): ATM IV 55.4% (+3%), volume 18

Data as of October 20, 2026.

ALT Option Chain

Detailed and comprehensive option chain for each expiration listed for ALT. Includes volume, open interest, implied volatility, and bid/ask for each strike. Investigate further by clicking on a strike and seeing trade activity, volatility movement, and yesterday's closing values. Use the built-in options profit calculator to see the profit or loss of any ALT options strategy.

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