OITracker Cboe delayed data

Contract OI history

Back to TSM

Dec 18, 2026 EXPIRATION

TSM $420.00 Call

TSM261218C00420000

Latest saved OI6,429Oct 23, 2026
Last change+182vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $420.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6,5333,2660 2026-10-02: 6,016 OI2026-10-05: 5,942 OI2026-10-06: 5,916 OI2026-10-07: 5,921 OI2026-10-08: 5,921 OI2026-10-09: 5,649 OI2026-10-14: 5,658 OI2026-10-15: 5,675 OI2026-10-16: 6,533 OI2026-10-21: 6,247 OI2026-10-23: 6,429 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, 2026Viewing6,429+182
Oct 21, 20266,247-286
Oct 16, 20266,533+858
Oct 15, 20265,675+17
Oct 14, 20265,658+9
Oct 09, 20265,649-272
Oct 08, 20265,9210
Oct 07, 20265,921+5
Oct 06, 20265,916-26
Oct 05, 20265,942-74
Oct 02, 20266,016No prior observation