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Contract OI history

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Dec 18, 2026 EXPIRATION

COST $1240.00 Call

COST261218C01240000

Latest saved OI261Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $1240.00 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. 2651320 2026-10-09: 264 OI2026-10-13: 264 OI2026-10-14: 264 OI2026-10-15: 265 OI2026-10-16: 265 OI2026-10-21: 263 OI2026-10-23: 261 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, 2026Viewing261-2
Oct 21, 2026263-2
Oct 16, 20262650
Oct 15, 2026265+1
Oct 14, 20262640
Oct 13, 20262640
Oct 09, 2026264No prior observation