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Contract OI history

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Dec 18, 2026 EXPIRATION

BTDR $17.50 Call

BTDR261218C00017500

Latest saved OI799Oct 23, 2026
Last change+7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTDR $17.50 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. 8504250 2026-10-09: 850 OI2026-10-13: 836 OI2026-10-14: 793 OI2026-10-15: 791 OI2026-10-16: 791 OI2026-10-21: 792 OI2026-10-23: 799 OI Oct 09, 2026Oct 23, 2026

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

BTDR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing799+7
Oct 21, 2026792+1
Oct 16, 20267910
Oct 15, 2026791-2
Oct 14, 2026793-43
Oct 13, 2026836-14
Oct 09, 2026850No prior observation