Alector (ALEC) Options Chain
NASDAQ: ALECHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 15, 2027
- Days to expiration
- 96
- Share price
- $2.08
- Put/call ratio (OI)
- 0.27
- Put/call ratio (volume)
- 0.09
- ATM implied volatility
- 127.7%
- Expected move
- ±$1.36
- Open interest (C / P)
- 552 / 147
ALEC options summary
The ALEC options chain for the January 15, 2027 expiration lists 2 call and 1 put contracts, with 96 days until expiration. Open interest stands at 552 calls and 147 puts, a put/call ratio of 0.27, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 127.7%, which implies the market expects a move of about ±$1.36 (65.5%) in Alector stock by expiration.
The most open interest sits at the $2.50 call (436 contracts) and the $2.50 put (147 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ALEC options chain · January 15, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.20 | 0.10 | 0.45 | 2.50 | 0.00 | 0.95 | 0.78 | |||||
| 0.05 | 0.00 | 0.10 | 5.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the ALEC put/call ratio?
For the January 15, 2027 expiration, the ALEC put/call ratio based on open interest is 0.27 (147 puts vs 552 calls), and 0.09 based on today's volume. A ratio above 1 means more puts than calls.
What is ALEC's implied volatility?
At-the-money implied volatility for ALEC options expiring January 15, 2027 is about 127.7%, an annualized estimate of how much the market expects Alector stock to move.
How many ALEC option expiration dates are there?
ALEC has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.