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Contract OI history

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Nov 20, 2026 EXPIRATION

HRB $45.00 Put

HRB261120P00045000

Latest saved OI510Oct 23, 2026
Last change+23vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HRB $45.00 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. 5102550 2026-10-02: 442 OI2026-10-05: 442 OI2026-10-06: 442 OI2026-10-07: 442 OI2026-10-08: 446 OI2026-10-09: 446 OI2026-10-13: 447 OI2026-10-14: 446 OI2026-10-15: 464 OI2026-10-16: 466 OI2026-10-21: 487 OI2026-10-23: 510 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, 2026Viewing510+23
Oct 21, 2026487+21
Oct 16, 2026466+2
Oct 15, 2026464+18
Oct 14, 2026446-1
Oct 13, 2026447+1
Oct 09, 20264460
Oct 08, 2026446+4
Oct 07, 20264420
Oct 06, 20264420
Oct 05, 20264420
Oct 02, 2026442No prior observation