OITracker Cboe delayed data

Contract OI history

Back to TOST

Jan 15, 2027 EXPIRATION

TOST $23.00 Put

TOST270115P00023000

Latest saved OI2,086Oct 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 $23.00 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. 2,0871,0430 2026-10-02: 2,087 OI2026-10-05: 2,087 OI2026-10-06: 2,087 OI2026-10-07: 2,087 OI2026-10-08: 2,087 OI2026-10-09: 2,087 OI2026-10-13: 2,086 OI2026-10-14: 2,086 OI2026-10-15: 2,086 OI2026-10-16: 2,086 OI2026-10-21: 2,086 OI2026-10-23: 2,086 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, 2026Viewing2,0860
Oct 21, 20262,0860
Oct 16, 20262,0860
Oct 15, 20262,0860
Oct 14, 20262,0860
Oct 13, 20262,086-1
Oct 09, 20262,0870
Oct 08, 20262,0870
Oct 07, 20262,0870
Oct 06, 20262,0870
Oct 05, 20262,0870
Oct 02, 20262,087No prior observation