Adicet Bio (ACET) Options Chain
NASDAQ: ACETHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Pre-market: 5.80 +1.05%
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $5.74
- Put/call ratio (OI)
- 1.09
- Put/call ratio (volume)
- 0.03
- ATM implied volatility
- 692.2%
- Expected move
- ±$5.50
- Open interest (C / P)
- 291 / 318
ACET options summary
The ACET options chain for the October 16, 2026 expiration lists 6 call and 4 put contracts, with 7 days until expiration. Open interest stands at 291 calls and 318 puts, a put/call ratio of 1.09, which is fairly balanced between calls and puts. At-the-money implied volatility near the $5.00 strike is 692.2%, which implies the market expects a move of about ±$5.50 (95.9%) in Adicet Bio stock by expiration.
The most open interest sits at the $10.00 call (192 contracts) and the $10.00 put (245 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ACET options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 2.50 | 0.00 | 0.00 | 0.04 | |||||
| 1.67 | 0.00 | 0.00 | 5.00 | 0.00 | 3.50 | 1.60 | |||||
| 2.42 | 0.00 | 0.00 | 7.50 | 0.00 | 0.00 | 1.75 | |||||
| 0.10 | 0.00 | 0.00 | 10.00 | 0.00 | 0.00 | 3.90 | |||||
| 0.10 | 0.00 | 0.00 | 12.50 | — | — | — | |||||
| 0.05 | 0.00 | 0.00 | 15.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.00 | 17.50 | — | — | — | |||||
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 ACET put/call ratio?
For the October 16, 2026 expiration, the ACET put/call ratio based on open interest is 1.09 (318 puts vs 291 calls), and 0.03 based on today's volume. A ratio above 1 means more puts than calls.
What is ACET's implied volatility?
At-the-money implied volatility for ACET options expiring October 16, 2026 is about 692.2%, an annualized estimate of how much the market expects Adicet Bio stock to move.
How many ACET option expiration dates are there?
ACET 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.