Puma Biotechnology (PBYI) Options Chain
NASDAQ: PBYIHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $10.29
- Put/call ratio (OI)
- 0.16
- Put/call ratio (volume)
- 0.08
- Expected move
- ±$1.20
- Open interest (C / P)
- 437 / 68
PBYI options summary
The PBYI options chain for the October 16, 2026 expiration lists 4 call and 2 put contracts, with 7 days until expiration. Open interest stands at 437 calls and 68 puts, a put/call ratio of 0.16, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $10.00 strike is 84.2%, which implies the market expects a move of about ±$1.20 (11.7%) in Puma Biotechnology stock by expiration.
The most open interest sits at the $10.00 call (418 contracts) and the $7.50 put (42 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PBYI options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 2.25 | 1.00 | 4.90 | 7.50 | 0.00 | 2.75 | 1.00 | |||||
| 0.55 | 0.35 | 0.60 | 10.00 | 0.00 | 1.00 | 0.50 | |||||
| 0.05 | 0.00 | 0.50 | 12.50 | — | — | — | |||||
| 0.10 | 0.00 | 1.75 | 15.00 | — | — | — | |||||
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 PBYI put/call ratio?
For the October 16, 2026 expiration, the PBYI put/call ratio based on open interest is 0.16 (68 puts vs 437 calls), and 0.08 based on today's volume. A ratio above 1 means more puts than calls.
What is PBYI's implied volatility?
At-the-money implied volatility for PBYI options expiring October 16, 2026 is about 84.2%, an annualized estimate of how much the market expects Puma Biotechnology stock to move.
How many PBYI option expiration dates are there?
PBYI has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.