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Contract OI history

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Jan 21, 2028 EXPIRATION

HE $17.50 Call

HE280121C00017500

Latest saved OI1,173Oct 21, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HE $17.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 1,2136060 2026-10-02: 1,175 OI2026-10-05: 1,175 OI2026-10-06: 1,173 OI2026-10-07: 1,173 OI2026-10-08: 1,173 OI2026-10-09: 1,213 OI2026-10-13: 1,213 OI2026-10-14: 1,213 OI2026-10-16: 1,173 OI2026-10-21: 1,173 OI Oct 02, 2026Oct 21, 2026

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

HE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing1,1730
Oct 16, 20261,173-40
Oct 14, 20261,2130
Oct 13, 20261,2130
Oct 09, 20261,213+40
Oct 08, 20261,1730
Oct 07, 20261,1730
Oct 06, 20261,173-2
Oct 05, 20261,1750
Oct 02, 20261,175No prior observation