OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

HRB $50.00 Call

HRB270115C00050000

Latest saved OI221Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HRB $50.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2791390 2026-10-02: 250 OI2026-10-05: 270 OI2026-10-06: 275 OI2026-10-07: 275 OI2026-10-08: 279 OI2026-10-09: 224 OI2026-10-13: 226 OI2026-10-14: 227 OI2026-10-15: 227 OI2026-10-16: 226 OI2026-10-21: 227 OI2026-10-23: 221 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, 2026Viewing221-6
Oct 21, 2026227+1
Oct 16, 2026226-1
Oct 15, 20262270
Oct 14, 2026227+1
Oct 13, 2026226+2
Oct 09, 2026224-55
Oct 08, 2026279+4
Oct 07, 20262750
Oct 06, 2026275+5
Oct 05, 2026270+20
Oct 02, 2026250No prior observation