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Contract OI history

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Jan 15, 2027 EXPIRATION

HLF $17.50 Call

HLF270115C00017500

Latest saved OI22,574Oct 20, 2026
Last change0vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HLF $17.50 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. 22,57411,2870 2026-10-02: 22,573 OI2026-10-05: 22,573 OI2026-10-06: 22,573 OI2026-10-07: 22,573 OI2026-10-09: 22,573 OI2026-10-13: 22,574 OI2026-10-14: 22,574 OI2026-10-16: 22,574 OI2026-10-20: 22,574 OI Oct 02, 2026Oct 20, 2026

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

HLF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing22,5740
Oct 16, 202622,5740
Oct 14, 202622,5740
Oct 13, 202622,574+1
Oct 09, 202622,5730
Oct 07, 202622,5730
Oct 06, 202622,5730
Oct 05, 202622,5730
Oct 02, 202622,573No prior observation