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Contract OI history

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Feb 19, 2027 EXPIRATION

CTAS $240.00 Call

CTAS270219C00240000

Latest saved OI183Oct 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 $240.00 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. 183910 2026-10-09: 10 OI2026-10-13: 10 OI2026-10-14: 10 OI2026-10-15: 117 OI2026-10-16: 183 OI2026-10-21: 183 OI2026-10-23: 183 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, 2026Viewing1830
Oct 21, 20261830
Oct 16, 2026183+66
Oct 15, 2026117+107
Oct 14, 2026100
Oct 13, 2026100
Oct 09, 202610No prior observation