OITracker Cboe delayed data

Contract OI history

Back to TSM

Nov 20, 2026 EXPIRATION

TSM $400.00 Put

TSM261120P00400000

Latest saved OI7,233Oct 23, 2026
Last change+205vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $400.00 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. 7,2333,6160 2026-10-02: 4,972 OI2026-10-05: 5,292 OI2026-10-06: 5,019 OI2026-10-07: 5,217 OI2026-10-08: 5,217 OI2026-10-09: 5,277 OI2026-10-14: 5,396 OI2026-10-15: 5,758 OI2026-10-16: 6,306 OI2026-10-21: 7,028 OI2026-10-23: 7,233 OI Oct 02, 2026Oct 23, 2026

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

TSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7,233+205
Oct 21, 20267,028+722
Oct 16, 20266,306+548
Oct 15, 20265,758+362
Oct 14, 20265,396+119
Oct 09, 20265,277+60
Oct 08, 20265,2170
Oct 07, 20265,217+198
Oct 06, 20265,019-273
Oct 05, 20265,292+320
Oct 02, 20264,972No prior observation