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Contract OI history

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Jan 15, 2027 EXPIRATION

PENN $22.50 Put

PENN270115P00022500

Latest saved OI594Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PENN $22.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 6923460 2026-10-08: 692 OI2026-10-13: 692 OI2026-10-14: 692 OI2026-10-15: 595 OI2026-10-16: 595 OI2026-10-21: 595 OI2026-10-23: 594 OI Oct 08, 2026Oct 23, 2026

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

PENN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026594-1
Oct 21, 2026Viewing5950
Oct 16, 20265950
Oct 15, 2026595-97
Oct 14, 20266920
Oct 13, 20266920
Oct 08, 2026692No prior observation