OITracker Cboe delayed data

Contract OI history

Back to TOST

Jan 21, 2028 EXPIRATION

TOST $33.00 Call

TOST280121C00033000

Latest saved OI1,054Oct 23, 2026
Last change+76vs 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. 1,0545270 2026-10-02: 762 OI2026-10-05: 763 OI2026-10-06: 764 OI2026-10-07: 764 OI2026-10-08: 764 OI2026-10-09: 711 OI2026-10-13: 717 OI2026-10-14: 717 OI2026-10-15: 978 OI2026-10-16: 978 OI2026-10-21: 978 OI2026-10-23: 1,054 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, 2026Viewing1,054+76
Oct 21, 20269780
Oct 16, 20269780
Oct 15, 2026978+261
Oct 14, 20267170
Oct 13, 2026717+6
Oct 09, 2026711-53
Oct 08, 20267640
Oct 07, 20267640
Oct 06, 2026764+1
Oct 05, 2026763+1
Oct 02, 2026762No prior observation