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Contract OI history

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Dec 18, 2026 EXPIRATION

TTD $27.50 Call

TTD261218C00027500

Latest saved OI3,837Oct 23, 2026
Last change-1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
TTD $27.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,8411,9200 2026-10-09: 3,839 OI2026-10-14: 3,841 OI2026-10-15: 3,840 OI2026-10-16: 3,840 OI2026-10-21: 3,838 OI2026-10-23: 3,837 OI Oct 09, 2026Oct 23, 2026

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

TTD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,837-1
Oct 21, 20263,838-2
Oct 16, 20263,8400
Oct 15, 20263,840-1
Oct 14, 20263,841+2
Oct 09, 20263,839No prior observation