OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

PS $50.00 Put

PS261120P00050000

Latest saved OI136Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PS $50.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 136680 2026-10-02: 128 OI2026-10-05: 128 OI2026-10-06: 129 OI2026-10-07: 131 OI2026-10-08: 135 OI2026-10-09: 135 OI2026-10-13: 136 OI2026-10-14: 136 OI2026-10-16: 136 OI2026-10-21: 136 OI2026-10-23: 136 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, 20261360
Oct 21, 2026Viewing1360
Oct 16, 20261360
Oct 14, 20261360
Oct 13, 2026136+1
Oct 09, 20261350
Oct 08, 2026135+4
Oct 07, 2026131+2
Oct 06, 2026129+1
Oct 05, 20261280
Oct 02, 2026128No prior observation