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Contract OI history

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Jan 15, 2027 EXPIRATION

HEI $300.00 Call

HEI270115C00300000

Latest saved OI53Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HEI $300.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 54270 2026-10-02: 43 OI2026-10-05: 43 OI2026-10-06: 43 OI2026-10-07: 51 OI2026-10-08: 54 OI2026-10-09: 54 OI2026-10-13: 53 OI2026-10-14: 53 OI2026-10-16: 53 OI2026-10-20: 53 OI Oct 02, 2026Oct 20, 2026

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

HEI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing530
Oct 16, 2026530
Oct 14, 2026530
Oct 13, 202653-1
Oct 09, 2026540
Oct 08, 202654+3
Oct 07, 202651+8
Oct 06, 2026430
Oct 05, 2026430
Oct 02, 202643No prior observation