Strata Critical Medical (SRTA) Options Chain
NASDAQ: SRTAHealth CareMedical/Nursing ServicesUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $4.53
- Put/call ratio (OI)
- 0.34
- Put/call ratio (volume)
- 0.55
- Expected move
- ±$1.09
- Open interest (C / P)
- 5.75K / 1.98K
SRTA options summary
The SRTA options chain for the November 20, 2026 expiration lists 4 call and 3 put contracts, with 40 days until expiration. Open interest stands at 5,754 calls and 1,977 puts, a put/call ratio of 0.34, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $5.00 strike is 72.5%, which implies the market expects a move of about ±$1.09 (24.0%) in Strata Critical Medical stock by expiration.
The most open interest sits at the $7.50 call (3.75K contracts) and the $2.50 put (1.73K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
SRTA options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 2.60 | 1.65 | 2.40 | 2.50 | 0.00 | 0.75 | 0.05 | |||||
| 0.70 | 0.00 | 0.75 | 5.00 | 0.50 | 0.75 | 0.70 | |||||
| 0.10 | 0.00 | 0.20 | 7.50 | 0.85 | 3.80 | 2.56 | |||||
| 0.01 | 0.00 | 0.20 | 10.00 | — | — | — | |||||
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 SRTA put/call ratio?
For the November 20, 2026 expiration, the SRTA put/call ratio based on open interest is 0.34 (1,977 puts vs 5,754 calls), and 0.55 based on today's volume. A ratio above 1 means more puts than calls.
What is SRTA's implied volatility?
At-the-money implied volatility for SRTA options expiring November 20, 2026 is about 72.5%, an annualized estimate of how much the market expects Strata Critical Medical stock to move.
How many SRTA option expiration dates are there?
SRTA 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.