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Contract OI history

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Apr 16, 2027 EXPIRATION

HAFN $10.00 Call

HAFN270416C00010000

Latest saved OI750Oct 20, 2026
Last change+91vs 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. 7503750 2026-10-02: 693 OI2026-10-05: 669 OI2026-10-06: 671 OI2026-10-07: 671 OI2026-10-09: 679 OI2026-10-13: 683 OI2026-10-14: 680 OI2026-10-16: 659 OI2026-10-20: 750 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, 2026Viewing750+91
Oct 16, 2026659-21
Oct 14, 2026680-3
Oct 13, 2026683+4
Oct 09, 2026679+8
Oct 07, 20266710
Oct 06, 2026671+2
Oct 05, 2026669-24
Oct 02, 2026693No prior observation