OITracker Cboe delayed data

Contract OI history

Back to TOST

Jan 15, 2027 EXPIRATION

TOST $22.00 Put

TOST270115P00022000

Latest saved OI766Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $22.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7663830 2026-10-02: 763 OI2026-10-05: 763 OI2026-10-06: 763 OI2026-10-07: 763 OI2026-10-08: 763 OI2026-10-09: 763 OI2026-10-13: 763 OI2026-10-14: 763 OI2026-10-15: 766 OI2026-10-16: 766 OI2026-10-21: 766 OI2026-10-23: 766 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

TOST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20267660
Oct 21, 2026Viewing7660
Oct 16, 20267660
Oct 15, 2026766+3
Oct 14, 20267630
Oct 13, 20267630
Oct 09, 20267630
Oct 08, 20267630
Oct 07, 20267630
Oct 06, 20267630
Oct 05, 20267630
Oct 02, 2026763No prior observation