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Contract OI history

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Nov 20, 2026 EXPIRATION

HRB $30.00 Put

HRB261120P00030000

Latest saved OI685Oct 23, 2026
Last change+79vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HRB $30.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6853420 2026-10-02: 649 OI2026-10-05: 649 OI2026-10-06: 649 OI2026-10-07: 604 OI2026-10-08: 604 OI2026-10-09: 604 OI2026-10-13: 604 OI2026-10-14: 605 OI2026-10-15: 605 OI2026-10-16: 605 OI2026-10-21: 606 OI2026-10-23: 685 OI Oct 02, 2026Oct 23, 2026

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

HRB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing685+79
Oct 21, 2026606+1
Oct 16, 20266050
Oct 15, 20266050
Oct 14, 2026605+1
Oct 13, 20266040
Oct 09, 20266040
Oct 08, 20266040
Oct 07, 2026604-45
Oct 06, 20266490
Oct 05, 20266490
Oct 02, 2026649No prior observation