Option chain for Alector (ALEC): calls and puts for every expiration and strike, with quotes, volume, open interest, implied volatility and greeks. As of Oct 28, 2026, ALEC had 4 option expirations, from Nov 20, 2026 to Apr 16, 2027, and 288 contracts traded that day. The nearest expiration, Nov 20, 2026, had an at-the-money implied volatility of 86.5% (+0% on the day) and 238 contracts traded.

For the latest figures, see ALEC options overview.

Key numbers

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

Nov 20, 2026 (23 days): ATM IV 86.5% (+0%), volume 238
Dec 18, 2026 (51 days): ATM IV 101.7% (+4%), volume 0
Jan 15, 2027 (79 days): ATM IV 96.5% (+43%), volume 12
Apr 16, 2027 (170 days): ATM IV 87.3% (+18%), volume 38

Data as of October 28, 2026.

ALEC Option Chain

Detailed and comprehensive option chain for each expiration listed for ALEC. 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 ALEC options strategy.

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