OITracker Cboe delayed data

Contract OI history

Back to TSM

Nov 20, 2026 EXPIRATION

TSM $280.00 Put

TSM261120P00280000

Latest saved OI3,222Oct 23, 2026
Last change-32vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $280.00 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. 3,3151,6570 2026-10-02: 3,209 OI2026-10-05: 3,206 OI2026-10-06: 3,206 OI2026-10-07: 3,206 OI2026-10-08: 3,206 OI2026-10-09: 3,206 OI2026-10-14: 3,208 OI2026-10-15: 3,210 OI2026-10-16: 3,315 OI2026-10-21: 3,254 OI2026-10-23: 3,222 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, 2026Viewing3,222-32
Oct 21, 20263,254-61
Oct 16, 20263,315+105
Oct 15, 20263,210+2
Oct 14, 20263,208+2
Oct 09, 20263,2060
Oct 08, 20263,2060
Oct 07, 20263,2060
Oct 06, 20263,2060
Oct 05, 20263,206-3
Oct 02, 20263,209No prior observation