OITracker Cboe delayed data

Contract OI history

Back to TSM

Nov 27, 2026 EXPIRATION

TSM $420.00 Put

TSM261127P00420000

Latest saved OI1,224Oct 23, 2026
Last change+922vs previous saved observation
Saved market days8Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $420.00 put open interest history 8 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 1,2246120 2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 23 OI2026-10-14: 90 OI2026-10-15: 260 OI2026-10-16: 275 OI2026-10-21: 302 OI2026-10-23: 1,224 OI Oct 07, 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, 2026Viewing1,224+922
Oct 21, 2026302+27
Oct 16, 2026275+15
Oct 15, 2026260+170
Oct 14, 202690+67
Oct 09, 202623+23
Oct 08, 202600
Oct 07, 20260No prior observation