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Contract OI history

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Jan 21, 2028 EXPIRATION

CTAS $280.00 Call

CTAS280121C00280000

Latest saved OI67Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CTAS $280.00 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. 67330 2026-10-09: 67 OI2026-10-13: 67 OI2026-10-14: 67 OI2026-10-15: 67 OI2026-10-16: 67 OI2026-10-21: 67 OI2026-10-23: 67 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, 2026Viewing670
Oct 21, 2026670
Oct 16, 2026670
Oct 15, 2026670
Oct 14, 2026670
Oct 13, 2026670
Oct 09, 202667No prior observation