OITracker Cboe delayed data

Contract OI history

Back to TSM

Dec 18, 2026 EXPIRATION

TSM $190.00 Put

TSM261218P00190000

Latest saved OI1,570Oct 23, 2026
Last change+295vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $190.00 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. 1,5707850 2026-10-02: 1,161 OI2026-10-05: 1,162 OI2026-10-06: 1,171 OI2026-10-07: 1,184 OI2026-10-08: 1,184 OI2026-10-09: 1,178 OI2026-10-14: 1,174 OI2026-10-15: 1,176 OI2026-10-16: 1,176 OI2026-10-21: 1,275 OI2026-10-23: 1,570 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, 2026Viewing1,570+295
Oct 21, 20261,275+99
Oct 16, 20261,1760
Oct 15, 20261,176+2
Oct 14, 20261,174-4
Oct 09, 20261,178-6
Oct 08, 20261,1840
Oct 07, 20261,184+13
Oct 06, 20261,171+9
Oct 05, 20261,162+1
Oct 02, 20261,161No prior observation