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Contract OI history

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Oct 23, 2026 EXPIRATION

BTDR $8.50 Put

BTDR261023P00008500

Latest saved OI102Oct 23, 2026
Last change-99vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTDR $8.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2281140 2026-10-09: 35 OI2026-10-13: 67 OI2026-10-14: 181 OI2026-10-15: 228 OI2026-10-16: 199 OI2026-10-21: 201 OI2026-10-23: 102 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, 2026Viewing102-99
Oct 21, 2026201+2
Oct 16, 2026199-29
Oct 15, 2026228+47
Oct 14, 2026181+114
Oct 13, 202667+32
Oct 09, 202635No prior observation