Alto Neuroscience (ANRO) Options Chain
NYSE: ANROHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 15, 2027
- Days to expiration
- 96
- Share price
- $24.37
- Put/call ratio (OI)
- 2.25
- Put/call ratio (volume)
- 1.35
- Expected move
- ±$4.59
- Open interest (C / P)
- 81 / 182
ANRO options summary
The ANRO options chain for the January 15, 2027 expiration lists 9 call and 3 put contracts, with 96 days until expiration. Open interest stands at 81 calls and 182 puts, a put/call ratio of 2.25, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $25.00 strike is 36.7%, which implies the market expects a move of about ±$4.59 (18.8%) in Alto Neuroscience stock by expiration.
The most open interest sits at the $30.00 call (32 contracts) and the $25.00 put (99 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ANRO options chain · January 15, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 19.21 | 17.50 | 21.30 | 5.00 | — | — | — | |||||
| 6.20 | 4.00 | 8.40 | 20.00 | — | — | — | |||||
| 4.84 | 4.60 | 5.90 | 22.50 | 0.70 | 4.90 | 2.51 | |||||
| 11.95 | 0.00 | 0.00 | 25.00 | 1.90 | 6.00 | 3.03 | |||||
| 1.89 | 1.55 | 2.40 | 30.00 | — | — | — | |||||
| 1.28 | 0.00 | 4.90 | 35.00 | 0.00 | 0.00 | 6.70 | |||||
| 2.40 | 0.00 | 4.90 | 40.00 | — | — | — | |||||
| 0.65 | 0.00 | 4.90 | 45.00 | — | — | — | |||||
| 0.90 | 0.00 | 4.90 | 50.00 | — | — | — | |||||
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 ANRO put/call ratio?
For the January 15, 2027 expiration, the ANRO put/call ratio based on open interest is 2.25 (182 puts vs 81 calls), and 1.35 based on today's volume. A ratio above 1 means more puts than calls.
What is ANRO's implied volatility?
At-the-money implied volatility for ANRO options expiring January 15, 2027 is about 36.7%, an annualized estimate of how much the market expects Alto Neuroscience stock to move.
How many ANRO option expiration dates are there?
ANRO 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.