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Contract OI history

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Jan 15, 2027 EXPIRATION

COST $1040.00 Call

COST270115C01040000

Latest saved OI434Oct 23, 2026
Last change+4vs 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. 4342170 2026-10-09: 369 OI2026-10-13: 369 OI2026-10-14: 369 OI2026-10-15: 369 OI2026-10-16: 387 OI2026-10-21: 430 OI2026-10-23: 434 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, 2026Viewing434+4
Oct 21, 2026430+43
Oct 16, 2026387+18
Oct 15, 20263690
Oct 14, 20263690
Oct 13, 20263690
Oct 09, 2026369No prior observation