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Contract OI history

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Sep 15, 2028 EXPIRATION

COST $1000.00 Call

COST280915C01000000

Latest saved OI288Oct 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 $1000.00 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. 2891440 2026-10-09: 260 OI2026-10-13: 260 OI2026-10-14: 260 OI2026-10-15: 283 OI2026-10-16: 277 OI2026-10-21: 289 OI2026-10-23: 288 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, 2026Viewing288-1
Oct 21, 2026289+12
Oct 16, 2026277-6
Oct 15, 2026283+23
Oct 14, 20262600
Oct 13, 20262600
Oct 09, 2026260No prior observation