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Contract OI history

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Dec 18, 2026 EXPIRATION

HLF $17.50 Call

HLF261218C00017500

Latest saved OI150Oct 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. 150750 2026-10-02: 145 OI2026-10-05: 145 OI2026-10-06: 145 OI2026-10-07: 145 OI2026-10-09: 145 OI2026-10-13: 145 OI2026-10-14: 145 OI2026-10-16: 150 OI2026-10-20: 150 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, 2026Viewing1500
Oct 16, 2026150+5
Oct 14, 20261450
Oct 13, 20261450
Oct 09, 20261450
Oct 07, 20261450
Oct 06, 20261450
Oct 05, 20261450
Oct 02, 2026145No prior observation