OITracker Cboe delayed data

Contract OI history

Back to PS

Nov 20, 2026 EXPIRATION

PS $55.00 Call

PS261120C00055000

Latest saved OI158Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PS $55.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 158790 2026-10-02: 97 OI2026-10-05: 97 OI2026-10-06: 97 OI2026-10-07: 94 OI2026-10-08: 131 OI2026-10-09: 133 OI2026-10-13: 133 OI2026-10-14: 133 OI2026-10-16: 139 OI2026-10-21: 157 OI2026-10-23: 158 OI Oct 02, 2026Oct 23, 2026

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

PS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing158+1
Oct 21, 2026157+18
Oct 16, 2026139+6
Oct 14, 20261330
Oct 13, 20261330
Oct 09, 2026133+2
Oct 08, 2026131+37
Oct 07, 202694-3
Oct 06, 2026970
Oct 05, 2026970
Oct 02, 202697No prior observation