OITracker Cboe delayed data

Contract OI history

Back to TOST

Nov 20, 2026 EXPIRATION

TOST $42.00 Call

TOST261120C00042000

Latest saved OI1,675Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $42.00 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. 1,6758370 2026-10-02: 1,662 OI2026-10-05: 1,666 OI2026-10-06: 1,666 OI2026-10-07: 1,666 OI2026-10-08: 1,666 OI2026-10-09: 1,666 OI2026-10-13: 1,668 OI2026-10-14: 1,668 OI2026-10-15: 1,668 OI2026-10-16: 1,668 OI2026-10-21: 1,668 OI2026-10-23: 1,675 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, 20261,675+7
Oct 21, 2026Viewing1,6680
Oct 16, 20261,6680
Oct 15, 20261,6680
Oct 14, 20261,6680
Oct 13, 20261,668+2
Oct 09, 20261,6660
Oct 08, 20261,6660
Oct 07, 20261,6660
Oct 06, 20261,6660
Oct 05, 20261,666+4
Oct 02, 20261,662No prior observation