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Contract OI history

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Nov 20, 2026 EXPIRATION

CTAS $200.00 Call

CTAS261120C00200000

Latest saved OI487Oct 23, 2026
Last change-28vs 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. 6243120 2026-10-09: 624 OI2026-10-13: 522 OI2026-10-14: 522 OI2026-10-15: 523 OI2026-10-16: 518 OI2026-10-21: 515 OI2026-10-23: 487 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, 2026Viewing487-28
Oct 21, 2026515-3
Oct 16, 2026518-5
Oct 15, 2026523+1
Oct 14, 20265220
Oct 13, 2026522-102
Oct 09, 2026624No prior observation