OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

IRON $50.00 Put

IRON261120P00050000

Latest saved OI449Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IRON $50.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4492240 2026-10-09: 232 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-16: 394 OI2026-10-20: 449 OI2026-10-23: 449 OI Oct 09, 2026Oct 23, 2026

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

IRON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4490
Oct 20, 2026449+55
Oct 16, 2026394+159
Oct 14, 20262350
Oct 13, 2026235+3
Oct 09, 2026232No prior observation