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Contract OI history

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Apr 16, 2027 EXPIRATION

HAFN $7.50 Call

HAFN270416C00007500

Latest saved OI74Oct 20, 2026
Last change+1vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAFN $7.50 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. 74370 2026-10-02: 73 OI2026-10-05: 73 OI2026-10-06: 73 OI2026-10-07: 73 OI2026-10-09: 73 OI2026-10-13: 73 OI2026-10-14: 73 OI2026-10-16: 73 OI2026-10-20: 74 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, 2026Viewing74+1
Oct 16, 2026730
Oct 14, 2026730
Oct 13, 2026730
Oct 09, 2026730
Oct 07, 2026730
Oct 06, 2026730
Oct 05, 2026730
Oct 02, 202673No prior observation