OITracker Cboe delayed data

Contract OI history

Back to TOST

Jan 15, 2027 EXPIRATION

TOST $50.00 Call

TOST270115C00050000

Latest saved OI20,560Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $50.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 20,57810,2890 2026-10-02: 20,547 OI2026-10-05: 20,544 OI2026-10-06: 20,544 OI2026-10-07: 20,544 OI2026-10-08: 20,544 OI2026-10-09: 20,544 OI2026-10-13: 20,542 OI2026-10-14: 20,542 OI2026-10-15: 20,578 OI2026-10-16: 20,578 OI2026-10-21: 20,561 OI2026-10-23: 20,560 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, 2026Viewing20,560-1
Oct 21, 202620,561-17
Oct 16, 202620,5780
Oct 15, 202620,578+36
Oct 14, 202620,5420
Oct 13, 202620,542-2
Oct 09, 202620,5440
Oct 08, 202620,5440
Oct 07, 202620,5440
Oct 06, 202620,5440
Oct 05, 202620,544-3
Oct 02, 202620,547No prior observation