OITracker Cboe delayed data

Contract OI history

Back to HRB

Jan 15, 2027 EXPIRATION

HRB $35.00 Put

HRB270115P00035000

Latest saved OI740Oct 23, 2026
Last change+85vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HRB $35.00 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. 7403700 2026-10-02: 653 OI2026-10-05: 653 OI2026-10-06: 653 OI2026-10-07: 653 OI2026-10-08: 653 OI2026-10-09: 653 OI2026-10-13: 653 OI2026-10-14: 654 OI2026-10-15: 654 OI2026-10-16: 664 OI2026-10-21: 655 OI2026-10-23: 740 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, 2026Viewing740+85
Oct 21, 2026655-9
Oct 16, 2026664+10
Oct 15, 20266540
Oct 14, 2026654+1
Oct 13, 20266530
Oct 09, 20266530
Oct 08, 20266530
Oct 07, 20266530
Oct 06, 20266530
Oct 05, 20266530
Oct 02, 2026653No prior observation