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Contract OI history

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Dec 17, 2027 EXPIRATION

HLF $17.50 Call

HLF271217C00017500

Latest saved OI8,056Oct 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. 8,0564,0280 2026-10-02: 8,054 OI2026-10-05: 8,054 OI2026-10-06: 8,054 OI2026-10-07: 8,054 OI2026-10-09: 8,054 OI2026-10-13: 8,056 OI2026-10-14: 8,056 OI2026-10-16: 8,056 OI2026-10-20: 8,056 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, 2026Viewing8,0560
Oct 16, 20268,0560
Oct 14, 20268,0560
Oct 13, 20268,056+2
Oct 09, 20268,0540
Oct 07, 20268,0540
Oct 06, 20268,0540
Oct 05, 20268,0540
Oct 02, 20268,054No prior observation