OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

IBKR $17.50 Put

IBKR270115P00017500

Latest saved OI481Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IBKR $17.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4812400 2026-10-09: 481 OI2026-10-13: 481 OI2026-10-14: 481 OI2026-10-15: 481 OI2026-10-16: 481 OI2026-10-21: 481 OI2026-10-23: 481 OI Oct 09, 2026Oct 23, 2026

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

IBKR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4810
Oct 21, 20264810
Oct 16, 20264810
Oct 15, 20264810
Oct 14, 20264810
Oct 13, 20264810
Oct 09, 2026481No prior observation