Gossamer Bio (GOSS) Options Chain
NASDAQ: GOSSHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 21, 2028
- Days to expiration
- 468
- Share price
- $9.31
- Put/call ratio (OI)
- 0.12
- Put/call ratio (volume)
- 0.56
- ATM implied volatility
- 442.2%
- Expected move
- ±$46.62
- Open interest (C / P)
- 34.04K / 4.02K
GOSS options summary
The GOSS options chain for the January 21, 2028 expiration lists 8 call and 8 put contracts, with 468 days until expiration. Open interest stands at 34,038 calls and 4,018 puts, a put/call ratio of 0.12, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $7.00 strike is 442.2%, which implies the market expects a move of about ±$46.62 (500.7%) in Gossamer Bio stock by expiration.
The most open interest sits at the $2.00 call (9.92K contracts) and the $1.50 put (3.23K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
GOSS options chain · January 21, 2028
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.08 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.37 | |||||
| 0.06 | 0.00 | 0.00 | 1.00 | 0.00 | 0.00 | 0.91 | |||||
| 0.10 | 0.00 | 0.00 | 1.50 | 0.00 | 0.00 | 1.00 | |||||
| 0.10 | 0.00 | 0.00 | 2.00 | 0.00 | 0.00 | 1.83 | |||||
| 0.10 | 0.00 | 0.00 | 3.00 | 2.50 | 3.50 | 2.82 | |||||
| 0.05 | 0.00 | 0.00 | 4.00 | 3.20 | 4.20 | 3.80 | |||||
| 0.05 | 0.00 | 0.00 | 5.00 | 0.00 | 0.00 | 3.70 | |||||
| 0.03 | 0.00 | 0.00 | 7.00 | 6.40 | 7.40 | 6.80 | |||||
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 GOSS put/call ratio?
For the January 21, 2028 expiration, the GOSS put/call ratio based on open interest is 0.12 (4,018 puts vs 34,038 calls), and 0.56 based on today's volume. A ratio above 1 means more puts than calls.
What is GOSS's implied volatility?
At-the-money implied volatility for GOSS options expiring January 21, 2028 is about 442.2%, an annualized estimate of how much the market expects Gossamer Bio stock to move.
How many GOSS option expiration dates are there?
GOSS has 5 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.
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.