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Contract OI history

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Jan 21, 2028 EXPIRATION

BTDR $7.50 Put

BTDR280121P00007500

Latest saved OI4,015Oct 23, 2026
Last change+16vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BTDR $7.50 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. 4,0152,0070 2026-10-09: 3,957 OI2026-10-13: 3,957 OI2026-10-14: 3,957 OI2026-10-15: 4,003 OI2026-10-16: 4,010 OI2026-10-21: 3,999 OI2026-10-23: 4,015 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, 2026Viewing4,015+16
Oct 21, 20263,999-11
Oct 16, 20264,010+7
Oct 15, 20264,003+46
Oct 14, 20263,9570
Oct 13, 20263,9570
Oct 09, 20263,957No prior observation