Omeros (OMER) Options Chain
NASDAQ: OMERHealth 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
- $19.83
- Put/call ratio (OI)
- 0.90
- Put/call ratio (volume)
- 0.68
- Expected move
- ±$14.81
- Open interest (C / P)
- 5.25K / 4.73K
OMER options summary
The OMER options chain for the January 21, 2028 expiration lists 17 call and 10 put contracts, with 468 days until expiration. Open interest stands at 5,249 calls and 4,734 puts, a put/call ratio of 0.90, which is fairly balanced between calls and puts. At-the-money implied volatility near the $20.00 strike is 65.9%, which implies the market expects a move of about ±$14.81 (74.7%) in Omeros stock by expiration.
The most open interest sits at the $10.00 call (1.25K contracts) and the $12.00 put (1.43K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
OMER options chain · January 21, 2028
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 19.50 | 16.50 | 21.50 | 1.00 | — | — | — | |||||
| 7.99 | 15.10 | 19.50 | 2.00 | — | — | — | |||||
| 11.01 | 0.00 | 0.00 | 3.00 | 0.00 | 4.80 | 0.49 | |||||
| 8.85 | 13.60 | 17.50 | 4.00 | 0.00 | 1.05 | 0.66 | |||||
| 8.20 | 12.50 | 17.00 | 5.00 | 0.00 | 1.70 | 0.99 | |||||
| 12.50 | 0.00 | 0.00 | 7.00 | 0.00 | 0.00 | 0.80 | |||||
| 10.40 | 10.50 | 11.80 | 10.00 | 0.00 | 0.00 | 2.10 | |||||
| 9.77 | 8.00 | 11.80 | 12.00 | 1.30 | 2.35 | 2.00 | |||||
| 7.25 | 7.00 | 11.00 | 15.00 | 2.45 | 2.85 | 2.75 | |||||
| 6.63 | 5.00 | 9.70 | 17.00 | 3.40 | 3.80 | 3.80 | |||||
| 6.50 | 4.00 | 8.40 | 20.00 | 3.00 | 5.40 | 5.90 | |||||
| 5.52 | 3.00 | 8.00 | 22.00 | 5.00 | 8.70 | 6.95 | |||||
| 4.80 | 2.10 | 7.00 | 25.00 | — | — | — | |||||
| 2.00 | 1.50 | 6.50 | 27.00 | — | — | — | |||||
| 3.00 | 1.85 | 6.00 | 30.00 | — | — | — | |||||
| 2.47 | 1.85 | 4.20 | 32.00 | — | — | — | |||||
| 2.60 | 1.80 | 3.10 | 35.00 | — | — | — | |||||
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 OMER put/call ratio?
For the January 21, 2028 expiration, the OMER put/call ratio based on open interest is 0.90 (4,734 puts vs 5,249 calls), and 0.68 based on today's volume. A ratio above 1 means more puts than calls.
What is OMER's implied volatility?
At-the-money implied volatility for OMER options expiring January 21, 2028 is about 65.9%, an annualized estimate of how much the market expects Omeros stock to move.
How many OMER option expiration dates are there?
OMER has 8 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.
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.