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Contract OI history

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Nov 20, 2026 EXPIRATION

TNDM $15.00 Put

TNDM261120P00015000

Latest saved OI660Oct 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 $15.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6603300 2026-10-09: 650 OI2026-10-13: 650 OI2026-10-14: 650 OI2026-10-16: 660 OI2026-10-21: 660 OI2026-10-23: 660 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, 2026Viewing6600
Oct 21, 20266600
Oct 16, 2026660+10
Oct 14, 20266500
Oct 13, 20266500
Oct 09, 2026650No prior observation