OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

B $43.00 Call

B261120C00043000

Latest saved OI584Oct 23, 2026
Last change+117vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $43.00 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. 5842920 2026-10-02: 272 OI2026-10-05: 260 OI2026-10-06: 260 OI2026-10-07: 259 OI2026-10-08: 262 OI2026-10-09: 317 OI2026-10-13: 325 OI2026-10-14: 329 OI2026-10-15: 320 OI2026-10-16: 335 OI2026-10-21: 467 OI2026-10-23: 584 OI Oct 02, 2026Oct 23, 2026

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

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing584+117
Oct 21, 2026467+132
Oct 16, 2026335+15
Oct 15, 2026320-9
Oct 14, 2026329+4
Oct 13, 2026325+8
Oct 09, 2026317+55
Oct 08, 2026262+3
Oct 07, 2026259-1
Oct 06, 20262600
Oct 05, 2026260-12
Oct 02, 2026272No prior observation