AtriCure (ATRC) Options Chain
NASDAQ: ATRCHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $55.81
- Put/call ratio (OI)
- 0.02
- Put/call ratio (volume)
- 0.05
- Expected move
- ±$10.43
- Open interest (C / P)
- 225 / 5
ATRC options summary
The ATRC options chain for the November 20, 2026 expiration lists 4 call and 5 put contracts, with 40 days until expiration. Open interest stands at 225 calls and 5 puts, a put/call ratio of 0.02, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $55.00 strike is 56.5%, which implies the market expects a move of about ±$10.43 (18.7%) in AtriCure stock by expiration.
The most open interest sits at the $40.00 call (210 contracts) and the $35.00 put (2 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ATRC options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 35.00 | 0.00 | 4.90 | 0.20 | |||||
| 16.00 | 14.00 | 17.40 | 40.00 | — | — | — | |||||
| — | — | — | 50.00 | 0.05 | 4.90 | 1.90 | |||||
| 3.40 | 2.00 | 6.30 | 55.00 | 2.25 | 6.00 | 3.10 | |||||
| 5.11 | 0.05 | 4.90 | 60.00 | 5.20 | 8.50 | 5.00 | |||||
| 1.00 | 0.00 | 4.90 | 65.00 | — | — | — | |||||
| — | — | — | 80.00 | 23.20 | 26.50 | 27.80 | |||||
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 ATRC put/call ratio?
For the November 20, 2026 expiration, the ATRC put/call ratio based on open interest is 0.02 (5 puts vs 225 calls), and 0.05 based on today's volume. A ratio above 1 means more puts than calls.
What is ATRC's implied volatility?
At-the-money implied volatility for ATRC options expiring November 20, 2026 is about 56.5%, an annualized estimate of how much the market expects AtriCure stock to move.
How many ATRC option expiration dates are there?
ATRC 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.