Upstream Bio (UPB) Options Chain
NASDAQ: UPBHealth 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
- $4.70
- Put/call ratio (OI)
- 0.86
- Put/call ratio (volume)
- 2.56
- ATM implied volatility
- 378.1%
- Expected move
- ±$5.88
- Open interest (C / P)
- 168 / 144
UPB options summary
The UPB options chain for the November 20, 2026 expiration lists 6 call and 5 put contracts, with 40 days until expiration. Open interest stands at 168 calls and 144 puts, a put/call ratio of 0.86, which is fairly balanced between calls and puts. At-the-money implied volatility near the $5.00 strike is 378.1%, which implies the market expects a move of about ±$5.88 (125.2%) in Upstream Bio stock by expiration.
The most open interest sits at the $12.50 call (76 contracts) and the $7.50 put (73 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
UPB options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 2.20 | — | — | 2.50 | 0.00 | 0.05 | 0.05 | |||||
| — | — | — | 5.00 | 0.00 | 4.90 | 0.60 | |||||
| 0.20 | 0.00 | 1.40 | 7.50 | 0.70 | 5.50 | 2.75 | |||||
| 0.10 | 0.00 | 0.75 | 10.00 | 0.00 | 0.00 | 3.14 | |||||
| 0.07 | 0.00 | 0.70 | 12.50 | 4.00 | 9.00 | 4.70 | |||||
| 0.09 | 0.00 | 4.90 | 15.00 | — | — | — | |||||
| 0.08 | 0.00 | 2.50 | 17.50 | — | — | — | |||||
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 UPB put/call ratio?
For the November 20, 2026 expiration, the UPB put/call ratio based on open interest is 0.86 (144 puts vs 168 calls), and 2.56 based on today's volume. A ratio above 1 means more puts than calls.
What is UPB's implied volatility?
At-the-money implied volatility for UPB options expiring November 20, 2026 is about 378.1%, an annualized estimate of how much the market expects Upstream Bio stock to move.
How many UPB option expiration dates are there?
UPB has 4 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.