OITracker Cboe delayed data

Contract OI history

Back to TOST

Oct 30, 2026 EXPIRATION

TOST $33.00 Call

TOST261030C00033000

Latest saved OI267Oct 23, 2026
Last change+72vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $33.00 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. 2671330 2026-10-02: 58 OI2026-10-05: 74 OI2026-10-06: 74 OI2026-10-07: 116 OI2026-10-08: 116 OI2026-10-09: 116 OI2026-10-13: 153 OI2026-10-14: 153 OI2026-10-15: 159 OI2026-10-16: 181 OI2026-10-21: 195 OI2026-10-23: 267 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, 2026Viewing267+72
Oct 21, 2026195+14
Oct 16, 2026181+22
Oct 15, 2026159+6
Oct 14, 20261530
Oct 13, 2026153+37
Oct 09, 20261160
Oct 08, 20261160
Oct 07, 2026116+42
Oct 06, 2026740
Oct 05, 202674+16
Oct 02, 202658No prior observation