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Contract OI history

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Nov 20, 2026 EXPIRATION

T $21.00 Put

T261120P00021000

Latest saved OI3,166Oct 23, 2026
Last change+344vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
T $21.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3,1661,5830 2026-10-02: 176 OI2026-10-05: 225 OI2026-10-06: 1,147 OI2026-10-07: 1,147 OI2026-10-08: 1,150 OI2026-10-09: 2,780 OI2026-10-14: 2,851 OI2026-10-15: 2,847 OI2026-10-16: 2,836 OI2026-10-21: 2,822 OI2026-10-23: 3,166 OI Oct 02, 2026Oct 23, 2026

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

T contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,166+344
Oct 21, 20262,822-14
Oct 16, 20262,836-11
Oct 15, 20262,847-4
Oct 14, 20262,851+71
Oct 09, 20262,780+1,630
Oct 08, 20261,150+3
Oct 07, 20261,1470
Oct 06, 20261,147+922
Oct 05, 2026225+49
Oct 02, 2026176No prior observation