Alpha Tau Medical (DRTS) Options Chain
NASDAQ: DRTSHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- May 21, 2027
- Days to expiration
- 223
- Share price
- $14.41
- Put/call ratio (OI)
- 0.01
- Put/call ratio (volume)
- 0.15
- Expected move
- ±$8.74
- Open interest (C / P)
- 667 / 7
DRTS options summary
The DRTS options chain for the May 21, 2027 expiration lists 9 call and 1 put contracts, with 223 days until expiration. Open interest stands at 667 calls and 7 puts, a put/call ratio of 0.01, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $15.00 strike is 77.6%, which implies the market expects a move of about ±$8.74 (60.6%) in Alpha Tau Medical stock by expiration.
The most open interest sits at the $17.50 call (195 contracts) and the $10.00 put (7 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
DRTS options chain · May 21, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 12.17 | 10.40 | 13.40 | 2.50 | — | — | — | |||||
| 7.84 | 6.20 | 8.50 | 7.50 | — | — | — | |||||
| — | — | — | 10.00 | 0.00 | 1.60 | 0.75 | |||||
| 3.85 | 2.80 | 5.00 | 12.50 | — | — | — | |||||
| 2.39 | 2.15 | 4.30 | 15.00 | — | — | — | |||||
| 2.19 | 1.25 | 3.20 | 17.50 | — | — | — | |||||
| 1.40 | 1.20 | 1.75 | 20.00 | — | — | — | |||||
| 0.95 | 0.90 | 2.15 | 22.50 | — | — | — | |||||
| 0.75 | 0.70 | 1.40 | 25.00 | — | — | — | |||||
| 0.45 | 0.40 | 0.95 | 30.00 | — | — | — | |||||
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 DRTS put/call ratio?
For the May 21, 2027 expiration, the DRTS put/call ratio based on open interest is 0.01 (7 puts vs 667 calls), and 0.15 based on today's volume. A ratio above 1 means more puts than calls.
What is DRTS's implied volatility?
At-the-money implied volatility for DRTS options expiring May 21, 2027 is about 77.6%, an annualized estimate of how much the market expects Alpha Tau Medical stock to move.
How many DRTS option expiration dates are there?
DRTS has 7 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.