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Contract OI history

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Oct 23, 2026 EXPIRATION

T $20.50 Put

T261023P00020500

Latest saved OI337Oct 23, 2026
Last change+14vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
T $20.50 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. 3371680 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 44 OI2026-10-14: 62 OI2026-10-15: 62 OI2026-10-16: 65 OI2026-10-21: 323 OI2026-10-23: 337 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, 2026Viewing337+14
Oct 21, 2026323+258
Oct 16, 202665+3
Oct 15, 2026620
Oct 14, 202662+18
Oct 09, 202644+44
Oct 08, 202600
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation