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Contract OI history

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Jan 21, 2028 EXPIRATION

T $18.00 Put

T280121P00018000

Latest saved OI5,056Oct 23, 2026
Last change+34vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
T $18.00 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. 5,0562,5280 2026-10-02: 3,512 OI2026-10-05: 3,514 OI2026-10-06: 3,510 OI2026-10-07: 3,510 OI2026-10-08: 3,505 OI2026-10-09: 4,782 OI2026-10-14: 4,833 OI2026-10-15: 4,863 OI2026-10-16: 4,880 OI2026-10-21: 5,022 OI2026-10-23: 5,056 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, 2026Viewing5,056+34
Oct 21, 20265,022+142
Oct 16, 20264,880+17
Oct 15, 20264,863+30
Oct 14, 20264,833+51
Oct 09, 20264,782+1,277
Oct 08, 20263,505-5
Oct 07, 20263,5100
Oct 06, 20263,510-4
Oct 05, 20263,514+2
Oct 02, 20263,512No prior observation