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Contract OI history

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Dec 18, 2026 EXPIRATION

COST $1040.00 Call

COST261218C01040000

Latest saved OI853Oct 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 $1040.00 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. 8534260 2026-10-09: 785 OI2026-10-13: 808 OI2026-10-14: 808 OI2026-10-15: 824 OI2026-10-16: 838 OI2026-10-21: 852 OI2026-10-23: 853 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, 2026Viewing853+1
Oct 21, 2026852+14
Oct 16, 2026838+14
Oct 15, 2026824+16
Oct 14, 20268080
Oct 13, 2026808+23
Oct 09, 2026785No prior observation