ALX Oncology (ALXO) Options Chain
NASDAQ: ALXOHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
After hours: 1.25 0.00%
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $1.25
- Put/call ratio (OI)
- 0.34
- Put/call ratio (volume)
- 0.05
- Expected move
- ±$0.0866
- Open interest (C / P)
- 128 / 44
ALXO options summary
The ALXO options chain for the October 16, 2026 expiration lists 2 call and 2 put contracts, with 7 days until expiration. Open interest stands at 128 calls and 44 puts, a put/call ratio of 0.34, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1.50 strike is 50.0%, which implies the market expects a move of about ±$0.0866 (6.9%) in ALX Oncology stock by expiration.
The most open interest sits at the $3.00 call (101 contracts) and the $1.50 put (43 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ALXO options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 0.50 | 0.00 | 0.05 | 0.02 | |||||
| — | — | — | 1.50 | 0.00 | 0.50 | 0.35 | |||||
| 0.49 | 0.00 | 1.00 | 2.00 | — | — | — | |||||
| 0.02 | 0.00 | 0.10 | 3.00 | — | — | — | |||||
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 ALXO put/call ratio?
For the October 16, 2026 expiration, the ALXO put/call ratio based on open interest is 0.34 (44 puts vs 128 calls), and 0.05 based on today's volume. A ratio above 1 means more puts than calls.
What is ALXO's implied volatility?
At-the-money implied volatility for ALXO options expiring October 16, 2026 is about 50.0%, an annualized estimate of how much the market expects ALX Oncology stock to move.
How many ALXO option expiration dates are there?
ALXO has 5 listed expiration dates, from Oct 16, 2026 to May 21, 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.