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Contract OI history

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Jan 21, 2028 EXPIRATION

BTDR $17.50 Call

BTDR280121C00017500

Latest saved OI326Oct 23, 2026
Last change0vs 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. 3311650 2026-10-09: 322 OI2026-10-13: 322 OI2026-10-14: 329 OI2026-10-15: 325 OI2026-10-16: 331 OI2026-10-21: 326 OI2026-10-23: 326 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, 2026Viewing3260
Oct 21, 2026326-5
Oct 16, 2026331+6
Oct 15, 2026325-4
Oct 14, 2026329+7
Oct 13, 20263220
Oct 09, 2026322No prior observation