Seres Therapeutics (MCRB) Options Chain
NASDAQ: MCRBHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 39
- Share price
- $2.71
- Put/call ratio (volume)
- 0.00
- Expected move
- ±$0.0554
- Open interest (C / P)
- 0 / 0
MCRB options summary
The MCRB options chain for the November 20, 2026 expiration lists 1 call and 2 put contracts, with 39 days until expiration. At-the-money implied volatility near the $2.50 strike is 6.3%, which implies the market expects a move of about ±$0.0554 (2.0%) in Seres Therapeutics stock by expiration. The most open interest sits at the $5.00 call (0 contracts) and the $2.50 put (0 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
MCRB options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 2.50 | 0.00 | 0.00 | 0.20 | |||||
| 0.08 | 0.00 | 0.00 | 5.00 | 0.00 | 0.00 | 1.60 | |||||
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 MCRB's implied volatility?
At-the-money implied volatility for MCRB options expiring November 20, 2026 is about 6.3%, an annualized estimate of how much the market expects Seres Therapeutics stock to move.
How many MCRB option expiration dates are there?
MCRB has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 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.