OITracker Cboe delayed data

Contract OI history

Back to TSM

Jan 21, 2028 EXPIRATION

TSM $270.00 Put

TSM280121P00270000

Latest saved OI523Oct 23, 2026
Last change+22vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $270.00 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. 5232610 2026-10-02: 502 OI2026-10-05: 502 OI2026-10-06: 501 OI2026-10-07: 501 OI2026-10-08: 501 OI2026-10-09: 501 OI2026-10-14: 501 OI2026-10-15: 501 OI2026-10-16: 501 OI2026-10-21: 501 OI2026-10-23: 523 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, 2026Viewing523+22
Oct 21, 20265010
Oct 16, 20265010
Oct 15, 20265010
Oct 14, 20265010
Oct 09, 20265010
Oct 08, 20265010
Oct 07, 20265010
Oct 06, 2026501-1
Oct 05, 20265020
Oct 02, 2026502No prior observation