OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

TOST $45.00 Call

TOST270115C00045000

Latest saved OI9,198Oct 23, 2026
Last change-37vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TOST $45.00 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. 9,2354,6170 2026-10-02: 7,252 OI2026-10-05: 7,252 OI2026-10-06: 7,255 OI2026-10-07: 7,255 OI2026-10-08: 7,255 OI2026-10-09: 7,257 OI2026-10-13: 7,257 OI2026-10-14: 7,257 OI2026-10-15: 7,257 OI2026-10-16: 9,232 OI2026-10-21: 9,235 OI2026-10-23: 9,198 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, 2026Viewing9,198-37
Oct 21, 20269,235+3
Oct 16, 20269,232+1,975
Oct 15, 20267,2570
Oct 14, 20267,2570
Oct 13, 20267,2570
Oct 09, 20267,257+2
Oct 08, 20267,2550
Oct 07, 20267,2550
Oct 06, 20267,255+3
Oct 05, 20267,2520
Oct 02, 20267,252No prior observation