Tandem Diabetes Care, Inc. (TNDM) Options Chain
The options chain displays all available contracts with real-time quotes, Greeks, volume, and open interest for each strike and expiration. It is the primary tool for options trade selection.
Tandem Diabetes Care, Inc. (TNDM) operates in the Healthcare sector, specifically the Medical - Devices industry, with a market capitalization near $966.9M, listed on NASDAQ, employing roughly 2,650 people, carrying a beta of 1.64 to the broader market. Tandem Diabetes Care, Inc. Led by John F. Sheridan, public since 2013-11-14.
Snapshot as of May 15, 2026.
- Spot Price
- $12.59
- Total OI
- 29.5K
- Total Volume
- 3.5K
- Front Expiration
- 34 days
- Second Expiration
- 63 days
- ATM IV
- 72.8%
- Avg Bid/Ask Spread
- 58.25%
As of May 15, 2026, Tandem Diabetes Care, Inc. (TNDM) has 29.5K open contracts and 3.5K contracts traded. The nearest expiration is 34 days out, followed by 63 days. ATM implied volatility is 72.8%. Average bid/ask spread across the chain is 58.25%: wider spreads, size positions conservatively. The options chain aggregates every listed strike and expiration, letting traders evaluate skew, term structure, and liquidity in a single view.
How TNDM options chain Data Feeds Strategy Selection
Strategy selection on Tandem Diabetes Care, Inc. options does not derive from any single metric in isolation. The options chain view above sits inside a broader read: ATM IV currently sits at 72.8% and dealer gamma exposure is negative, so dealer hedging amplifies directional moves. Combine the options chain data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
Learn how the options chain is reported and how to read the data →
TNDM most-active contracts
| Type | Strike | Expiration | Volume | OI | IV | Bid | Ask |
|---|---|---|---|---|---|---|---|
| CALL | $15.00 | Jan 15, 2027 | 1.1K | 138 | 79.5% | $2.20 | $2.80 |
Top 1 contracts from the ORATS-sourced nightly scan; ranked by volume within the broader S&P 500/400/600 + ETF universe.
Frequently asked TNDM options chain questions
- What does the TNDM options chain show right now?
- As of May 15, 2026, Tandem Diabetes Care, Inc. (TNDM) has 29.5K contracts outstanding and 3.5K traded today, with ATM IV of 72.8%. The full chain spans every listed strike and expiration with bid/ask, Greeks, volume, and open interest per contract.
- What expirations are available for TNDM options?
- The nearest expiration is 34 days out, followed by 63 days. Listed expirations typically extend monthly with weeklies between, plus LEAPS one to two years out for liquid names.
- How tight are TNDM options bid/ask spreads?
- Average bid/ask spread across the chain is 58.25%. Wider spreads warrant conservative sizing; mid-market fills are unreliable for retail-size orders.