Inhibrx Biosciences (INBX) Options Chain
NASDAQ: INBXHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $92.76
- Put/call ratio (OI)
- 0.49
- Put/call ratio (volume)
- 0.55
- Expected move
- ±$0.4021
- Open interest (C / P)
- 426 / 210
INBX options summary
The INBX options chain for the October 16, 2026 expiration lists 13 call and 10 put contracts, with 7 days until expiration. Open interest stands at 426 calls and 210 puts, a put/call ratio of 0.49, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $95.00 strike is 3.1%, which implies the market expects a move of about ±$0.4021 (0.4%) in Inhibrx Biosciences stock by expiration.
The most open interest sits at the $120.00 call (148 contracts) and the $80.00 put (61 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
INBX options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 60.00 | 0.00 | 0.00 | 0.40 | |||||
| — | — | — | 70.00 | 0.00 | 0.00 | 1.00 | |||||
| — | — | — | 75.00 | 0.00 | 0.00 | 0.50 | |||||
| — | — | — | 80.00 | 0.00 | 0.00 | 1.00 | |||||
| — | — | — | 85.00 | 0.00 | 0.00 | 2.00 | |||||
| — | — | — | 90.00 | 0.00 | 0.00 | 3.00 | |||||
| 38.40 | 0.00 | 0.00 | 95.00 | 0.00 | 0.00 | 6.50 | |||||
| 5.50 | 0.00 | 0.00 | 100.00 | 0.00 | 0.00 | 8.20 | |||||
| 2.40 | 0.00 | 0.00 | 105.00 | — | — | — | |||||
| 4.60 | 0.00 | 0.00 | 110.00 | 0.00 | 0.00 | 7.90 | |||||
| 7.00 | 0.00 | 0.00 | 115.00 | — | — | — | |||||
| 4.20 | 0.00 | 0.00 | 120.00 | — | — | — | |||||
| 2.00 | 0.00 | 0.00 | 125.00 | 0.00 | 0.00 | 17.00 | |||||
| 1.50 | 0.00 | 0.00 | 130.00 | — | — | — | |||||
| 4.00 | 0.00 | 0.00 | 135.00 | — | — | — | |||||
| 5.00 | 0.00 | 0.00 | 140.00 | — | — | — | |||||
| 7.15 | 0.00 | 0.00 | 145.00 | — | — | — | |||||
| 1.00 | 0.00 | 0.00 | 150.00 | — | — | — | |||||
| 1.00 | 0.00 | 0.00 | 185.00 | — | — | — | |||||
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 INBX put/call ratio?
For the October 16, 2026 expiration, the INBX put/call ratio based on open interest is 0.49 (210 puts vs 426 calls), and 0.55 based on today's volume. A ratio above 1 means more puts than calls.
What is INBX's implied volatility?
At-the-money implied volatility for INBX options expiring October 16, 2026 is about 3.1%, an annualized estimate of how much the market expects Inhibrx Biosciences stock to move.
How many INBX option expiration dates are there?
INBX 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.