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Contract OI history

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Dec 18, 2026 EXPIRATION

T $27.00 Put

T261218P00027000

Latest saved OI274Oct 23, 2026
Last change-1,106vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
T $27.00 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. 3,2351,6170 2026-10-02: 3,210 OI2026-10-05: 3,213 OI2026-10-06: 3,215 OI2026-10-07: 3,215 OI2026-10-08: 3,235 OI2026-10-09: 1,227 OI2026-10-14: 1,418 OI2026-10-15: 1,418 OI2026-10-16: 1,380 OI2026-10-21: 1,380 OI2026-10-23: 274 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, 2026Viewing274-1,106
Oct 21, 20261,3800
Oct 16, 20261,380-38
Oct 15, 20261,4180
Oct 14, 20261,418+191
Oct 09, 20261,227-2,008
Oct 08, 20263,235+20
Oct 07, 20263,2150
Oct 06, 20263,215+2
Oct 05, 20263,213+3
Oct 02, 20263,210No prior observation