OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

GEN $20.00 Put

GEN270115P00020000

Latest saved OI756Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GEN $20.00 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. 7563780 2026-10-09: 615 OI2026-10-13: 619 OI2026-10-14: 752 OI2026-10-15: 756 OI2026-10-16: 756 OI2026-10-21: 756 OI2026-10-23: 756 OI Oct 09, 2026Oct 23, 2026

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

GEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7560
Oct 21, 20267560
Oct 16, 20267560
Oct 15, 2026756+4
Oct 14, 2026752+133
Oct 13, 2026619+4
Oct 09, 2026615No prior observation