OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CB $370.00 Call

CB270115C00370000

Latest saved OI253Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CB $370.00 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. 2551270 2026-10-02: 213 OI2026-10-05: 213 OI2026-10-06: 215 OI2026-10-07: 215 OI2026-10-08: 224 OI2026-10-09: 224 OI2026-10-13: 226 OI2026-10-14: 226 OI2026-10-15: 234 OI2026-10-16: 237 OI2026-10-21: 255 OI2026-10-23: 253 OI Oct 02, 2026Oct 23, 2026

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

CB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing253-2
Oct 21, 2026255+18
Oct 16, 2026237+3
Oct 15, 2026234+8
Oct 14, 20262260
Oct 13, 2026226+2
Oct 09, 20262240
Oct 08, 2026224+9
Oct 07, 20262150
Oct 06, 2026215+2
Oct 05, 20262130
Oct 02, 2026213No prior observation