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Contract OI history

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Dec 18, 2026 EXPIRATION

CTAS $200.00 Call

CTAS261218C00200000

Latest saved OI672Oct 23, 2026
Last change-29vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CTAS $200.00 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. 7923960 2026-10-09: 792 OI2026-10-13: 792 OI2026-10-14: 792 OI2026-10-15: 792 OI2026-10-16: 702 OI2026-10-21: 701 OI2026-10-23: 672 OI Oct 09, 2026Oct 23, 2026

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

CTAS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing672-29
Oct 21, 2026701-1
Oct 16, 2026702-90
Oct 15, 20267920
Oct 14, 20267920
Oct 13, 20267920
Oct 09, 2026792No prior observation