OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

CE $45.00 Put

CE261218P00045000

Latest saved OI281Oct 23, 2026
Last change+5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CE $45.00 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. 2811400 2026-10-02: 259 OI2026-10-05: 259 OI2026-10-06: 259 OI2026-10-07: 261 OI2026-10-08: 261 OI2026-10-09: 270 OI2026-10-13: 270 OI2026-10-14: 270 OI2026-10-16: 270 OI2026-10-20: 276 OI2026-10-23: 281 OI Oct 02, 2026Oct 23, 2026

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

CE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing281+5
Oct 20, 2026276+6
Oct 16, 20262700
Oct 14, 20262700
Oct 13, 20262700
Oct 09, 2026270+9
Oct 08, 20262610
Oct 07, 2026261+2
Oct 06, 20262590
Oct 05, 20262590
Oct 02, 2026259No prior observation