OITracker Cboe delayed data

Contract OI history

Back to TOST

Jan 15, 2027 EXPIRATION

TOST $30.00 Call

TOST270115C00030000

Latest saved OI5,505Oct 23, 2026
Last change+2,382vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $30.00 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. 5,5052,7520 2026-10-02: 3,076 OI2026-10-05: 3,074 OI2026-10-06: 3,074 OI2026-10-07: 3,123 OI2026-10-08: 3,123 OI2026-10-09: 3,123 OI2026-10-13: 3,124 OI2026-10-14: 3,124 OI2026-10-15: 3,124 OI2026-10-16: 3,122 OI2026-10-21: 3,123 OI2026-10-23: 5,505 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, 2026Viewing5,505+2,382
Oct 21, 20263,123+1
Oct 16, 20263,122-2
Oct 15, 20263,1240
Oct 14, 20263,1240
Oct 13, 20263,124+1
Oct 09, 20263,1230
Oct 08, 20263,1230
Oct 07, 20263,123+49
Oct 06, 20263,0740
Oct 05, 20263,074-2
Oct 02, 20263,076No prior observation