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Contract OI history

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Jan 15, 2027 EXPIRATION

HAFN $12.50 Call

HAFN270115C00012500

Latest saved OI524Oct 20, 2026
Last change-17vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAFN $12.50 call open interest history 9 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 5412700 2026-10-02: 332 OI2026-10-05: 418 OI2026-10-06: 427 OI2026-10-07: 426 OI2026-10-09: 434 OI2026-10-13: 480 OI2026-10-14: 541 OI2026-10-16: 541 OI2026-10-20: 524 OI Oct 02, 2026Oct 20, 2026

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

HAFN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing524-17
Oct 16, 20265410
Oct 14, 2026541+61
Oct 13, 2026480+46
Oct 09, 2026434+8
Oct 07, 2026426-1
Oct 06, 2026427+9
Oct 05, 2026418+86
Oct 02, 2026332No prior observation