OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

SE $55.00 Put

SE261218P00055000

Latest saved OI311Oct 23, 2026
Last change+116vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
SE $55.00 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. 3111550 2026-10-02: 195 OI2026-10-05: 195 OI2026-10-06: 195 OI2026-10-07: 195 OI2026-10-08: 195 OI2026-10-09: 195 OI2026-10-13: 195 OI2026-10-14: 195 OI2026-10-16: 195 OI2026-10-21: 195 OI2026-10-23: 311 OI Oct 02, 2026Oct 23, 2026

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

SE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing311+116
Oct 21, 20261950
Oct 16, 20261950
Oct 14, 20261950
Oct 13, 20261950
Oct 09, 20261950
Oct 08, 20261950
Oct 07, 20261950
Oct 06, 20261950
Oct 05, 20261950
Oct 02, 2026195No prior observation