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Contract OI history

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Jan 21, 2028 EXPIRATION

HLF $20.00 Call

HLF280121C00020000

Latest saved OI300Oct 20, 2026
Last change+63vs previous saved observation
Saved market days9Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HLF $20.00 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. 3001500 2026-10-02: 213 OI2026-10-05: 213 OI2026-10-06: 213 OI2026-10-07: 213 OI2026-10-09: 213 OI2026-10-13: 213 OI2026-10-14: 237 OI2026-10-16: 237 OI2026-10-20: 300 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, 2026Viewing300+63
Oct 16, 20262370
Oct 14, 2026237+24
Oct 13, 20262130
Oct 09, 20262130
Oct 07, 20262130
Oct 06, 20262130
Oct 05, 20262130
Oct 02, 2026213No prior observation