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Contract OI history

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Jan 21, 2028 EXPIRATION

PENN $20.00 Put

PENN280121P00020000

Latest saved OI4,083Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PENN $20.00 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. 4,0832,0410 2026-10-08: 4,080 OI2026-10-13: 4,080 OI2026-10-14: 4,080 OI2026-10-15: 4,080 OI2026-10-16: 4,080 OI2026-10-21: 4,083 OI2026-10-23: 4,083 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, 20264,0830
Oct 21, 2026Viewing4,083+3
Oct 16, 20264,0800
Oct 15, 20264,0800
Oct 14, 20264,0800
Oct 13, 20264,0800
Oct 08, 20264,080No prior observation