Puma Biotechnology (PBYI) Options Chain
NASDAQ: PBYIHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $10.29
- Put/call ratio (OI)
- 0.00
- Put/call ratio (volume)
- 0.02
- Expected move
- ±$2.26
- Open interest (C / P)
- 508 / 1
PBYI options summary
The PBYI options chain for the November 20, 2026 expiration lists 2 call and 1 put contracts, with 40 days until expiration. Open interest stands at 508 calls and 1 puts, a put/call ratio of 0.00, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $10.00 strike is 66.3%, which implies the market expects a move of about ±$2.26 (22.0%) in Puma Biotechnology stock by expiration.
The most open interest sits at the $10.00 call (387 contracts) and the $12.50 put (1 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
PBYI options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 1.20 | 0.75 | 1.35 | 10.00 | — | — | — | |||||
| 0.30 | 0.30 | 0.50 | 12.50 | 0.80 | 5.00 | 3.10 | |||||
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 November 20, 2026 expiration, the PBYI put/call ratio based on open interest is 0.00 (1 puts vs 508 calls), and 0.02 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 November 20, 2026 is about 66.3%, 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.