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Contract OI history

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May 21, 2027 EXPIRATION

TNDM $30.00 Call

TNDM270521C00030000

Latest saved OI178Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TNDM $30.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 178890 2026-10-09: 178 OI2026-10-13: 178 OI2026-10-14: 178 OI2026-10-16: 178 OI2026-10-21: 178 OI2026-10-23: 178 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

TNDM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261780
Oct 21, 2026Viewing1780
Oct 16, 20261780
Oct 14, 20261780
Oct 13, 20261780
Oct 09, 2026178No prior observation