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Contract OI history

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Jan 15, 2027 EXPIRATION

COST $850.00 Call

COST270115C00850000

Latest saved OI837Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $850.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8374180 2026-10-09: 806 OI2026-10-13: 805 OI2026-10-14: 805 OI2026-10-15: 807 OI2026-10-16: 805 OI2026-10-21: 836 OI2026-10-23: 837 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

COST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing837+1
Oct 21, 2026836+31
Oct 16, 2026805-2
Oct 15, 2026807+2
Oct 14, 20268050
Oct 13, 2026805-1
Oct 09, 2026806No prior observation