ALEC · Alector, Inc. · Options Chain
Positioning
Sep 18, 2026 · 4 days to expiryOpen interest by strike
Chain
Click any strike for greeks, breakeven and the calculator| Calls | Puts | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OI | Vol | IV | Δ | Bid | Ask | Last | Strike | Last | Bid | Ask | Δ | IV | Vol | OI |
| 57 | 2 | — | — | $0.00 | $0.15 | $0.01 | $0.30 | $0.00 | $1.00 | — | — | 300 | 1.1k | |
| 7 | 1 | — | — | $0.00 | $0.05 | $0.05 | — | $2.40 | $3.40 | — | — | — | — | |
| 4 | 3 | — | — | $0.00 | $0.10 | $0.05 | — | $4.90 | $5.90 | — | — | — | — | |
About this data
Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Aug 24, 2026–Sep 14, 2026; 2 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.
In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.