Tandem Diabetes Care (TNDM) Options Chain
NASDAQ: TNDMHealth CareMedical/Dental InstrumentsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Feb 19, 2027
- Days to expiration
- 131
- Share price
- $16.11
- Put/call ratio (OI)
- 0.31
- Put/call ratio (volume)
- 3.92
- Expected move
- ±$6.79
- Open interest (C / P)
- 516 / 160
TNDM options summary
The TNDM options chain for the February 19, 2027 expiration lists 15 call and 11 put contracts, with 131 days until expiration. Open interest stands at 516 calls and 160 puts, a put/call ratio of 0.31, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $16.00 strike is 70.3%, which implies the market expects a move of about ±$6.79 (42.1%) in Tandem Diabetes Care stock by expiration.
The most open interest sits at the $19.00 call (290 contracts) and the $13.00 put (56 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
TNDM options chain · February 19, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 9.00 | 0.00 | 0.55 | 0.33 | |||||
| 8.00 | 4.90 | 8.60 | 10.00 | 0.00 | 2.65 | 0.50 | |||||
| — | — | — | 11.00 | 0.00 | 1.35 | 0.90 | |||||
| — | — | — | 12.00 | 0.00 | 1.65 | 1.19 | |||||
| — | — | — | 13.00 | 0.05 | 2.60 | 0.90 | |||||
| 3.60 | 1.80 | 5.30 | 14.00 | 0.25 | 2.40 | 1.64 | |||||
| 3.60 | 1.20 | 4.70 | 15.00 | 0.00 | 0.00 | 0.97 | |||||
| 6.14 | 0.70 | 4.20 | 16.00 | 1.15 | 4.70 | 1.92 | |||||
| 3.00 | 1.00 | 4.50 | 17.00 | 1.20 | 4.60 | 2.56 | |||||
| 2.25 | 0.70 | 4.20 | 18.00 | 2.40 | 4.60 | 3.89 | |||||
| 1.90 | 0.40 | 3.00 | 19.00 | — | — | — | |||||
| 2.26 | 0.15 | 3.40 | 20.00 | 3.20 | 6.00 | 4.58 | |||||
| 1.35 | 0.00 | 2.80 | 21.00 | — | — | — | |||||
| 1.31 | 0.00 | 3.20 | 22.00 | — | — | — | |||||
| 1.23 | 0.00 | 2.20 | 23.00 | — | — | — | |||||
| 2.78 | 0.00 | 0.00 | 24.00 | — | — | — | |||||
| 1.20 | 0.00 | 2.75 | 25.00 | — | — | — | |||||
| 0.45 | 0.00 | 0.95 | 30.00 | — | — | — | |||||
| 0.59 | 0.05 | 0.75 | 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 TNDM put/call ratio?
For the February 19, 2027 expiration, the TNDM put/call ratio based on open interest is 0.31 (160 puts vs 516 calls), and 3.92 based on today's volume. A ratio above 1 means more puts than calls.
What is TNDM's implied volatility?
At-the-money implied volatility for TNDM options expiring February 19, 2027 is about 70.3%, an annualized estimate of how much the market expects Tandem Diabetes Care stock to move.
How many TNDM option expiration dates are there?
TNDM has 5 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.