OITracker Cboe delayed data

Contract OI history

Back to HRB

Apr 16, 2027 EXPIRATION

HRB $35.00 Put

HRB270416P00035000

Latest saved OI1,308Oct 23, 2026
Last change0vs 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. 1,3156570 2026-10-02: 1,235 OI2026-10-05: 1,235 OI2026-10-06: 1,235 OI2026-10-07: 1,235 OI2026-10-08: 1,239 OI2026-10-09: 1,277 OI2026-10-13: 1,315 OI2026-10-14: 1,310 OI2026-10-15: 1,310 OI2026-10-16: 1,308 OI2026-10-21: 1,308 OI2026-10-23: 1,308 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, 2026Viewing1,3080
Oct 21, 20261,3080
Oct 16, 20261,308-2
Oct 15, 20261,3100
Oct 14, 20261,310-5
Oct 13, 20261,315+38
Oct 09, 20261,277+38
Oct 08, 20261,239+4
Oct 07, 20261,2350
Oct 06, 20261,2350
Oct 05, 20261,2350
Oct 02, 20261,235No prior observation