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Contract OI history

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Dec 18, 2026 EXPIRATION

PPTA $22.50 Put

PPTA261218P00022500

Latest saved OI224Oct 23, 2026
Last change+15vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
PPTA $22.50 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. 2241120 2026-10-09: 213 OI2026-10-13: 213 OI2026-10-14: 211 OI2026-10-16: 211 OI2026-10-20: 209 OI2026-10-23: 224 OI Oct 09, 2026Oct 23, 2026

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

PPTA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing224+15
Oct 20, 2026209-2
Oct 16, 20262110
Oct 14, 2026211-2
Oct 13, 20262130
Oct 09, 2026213No prior observation