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Contract OI history

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Jan 21, 2028 EXPIRATION

TTD $17.50 Call

TTD280121C00017500

Latest saved OI2,197Oct 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 $17.50 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. 2,2041,1020 2026-10-09: 2,010 OI2026-10-14: 2,204 OI2026-10-15: 2,196 OI2026-10-16: 2,184 OI2026-10-21: 2,198 OI2026-10-23: 2,197 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, 2026Viewing2,197-1
Oct 21, 20262,198+14
Oct 16, 20262,184-12
Oct 15, 20262,196-8
Oct 14, 20262,204+194
Oct 09, 20262,010No prior observation