OITracker Cboe delayed data

Contract OI history

Back to TSM

Jan 21, 2028 EXPIRATION

TSM $440.00 Put

TSM280121P00440000

Latest saved OI458Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TSM $440.00 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. 4662330 2026-10-02: 466 OI2026-10-05: 465 OI2026-10-06: 464 OI2026-10-07: 464 OI2026-10-08: 464 OI2026-10-09: 464 OI2026-10-14: 464 OI2026-10-15: 464 OI2026-10-16: 465 OI2026-10-21: 458 OI2026-10-23: 458 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, 2026Viewing4580
Oct 21, 2026458-7
Oct 16, 2026465+1
Oct 15, 20264640
Oct 14, 20264640
Oct 09, 20264640
Oct 08, 20264640
Oct 07, 20264640
Oct 06, 2026464-1
Oct 05, 2026465-1
Oct 02, 2026466No prior observation