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Contract OI history

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Oct 23, 2026 EXPIRATION

CTAS $230.00 Call

CTAS261023C00230000

Latest saved OI282Oct 23, 2026
Last change+257vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CTAS $230.00 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. 2821410 2026-10-09: 26 OI2026-10-13: 33 OI2026-10-14: 33 OI2026-10-15: 33 OI2026-10-16: 33 OI2026-10-21: 25 OI2026-10-23: 282 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, 2026Viewing282+257
Oct 21, 202625-8
Oct 16, 2026330
Oct 15, 2026330
Oct 14, 2026330
Oct 13, 202633+7
Oct 09, 202626No prior observation