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Contract OI history

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Jan 15, 2027 EXPIRATION

HAFN $10.00 Call

HAFN270115C00010000

Latest saved OI1,236Oct 20, 2026
Last change+75vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAFN $10.00 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. 1,2366180 2026-10-02: 979 OI2026-10-05: 1,095 OI2026-10-06: 1,096 OI2026-10-07: 1,081 OI2026-10-09: 1,093 OI2026-10-13: 1,126 OI2026-10-14: 1,125 OI2026-10-16: 1,161 OI2026-10-20: 1,236 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, 2026Viewing1,236+75
Oct 16, 20261,161+36
Oct 14, 20261,125-1
Oct 13, 20261,126+33
Oct 09, 20261,093+12
Oct 07, 20261,081-15
Oct 06, 20261,096+1
Oct 05, 20261,095+116
Oct 02, 2026979No prior observation