Option chain for Tandem Diabetes Care (TNDM): calls and puts for every expiration and strike, with quotes, volume, open interest, implied volatility and greeks. As of Oct 21, 2026, TNDM had 5 option expirations, from Nov 20, 2026 to May 21, 2027, and 14 contracts traded that day. The nearest expiration, Nov 20, 2026, had an at-the-money implied volatility of 45.3% (-16% on the day) and 3 contracts traded; the busiest was Feb 19, 2027, with 10.

For the latest figures, see TNDM options overview.

Key numbers

Expirations: at-the-money implied volatility, change on the day, volume

Nov 20, 2026 (30 days): ATM IV 45.3% (-16%), volume 3
Dec 18, 2026 (58 days): ATM IV 53.8% (+6%), volume 0
Jan 15, 2027 (86 days): ATM IV 45.5% (-13%), volume 0
Feb 19, 2027 (121 days): ATM IV 64.3% (+41%), volume 10
May 21, 2027 (212 days): ATM IV 49.5% (+2%), volume 1

Data as of October 21, 2026.

TNDM Option Chain

Detailed and comprehensive option chain for each expiration listed for TNDM. Includes volume, open interest, implied volatility, and bid/ask for each strike. Investigate further by clicking on a strike and seeing trade activity, volatility movement, and yesterday's closing values. Use the built-in options profit calculator to see the profit or loss of any TNDM options strategy.

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