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Contract OI history

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Nov 20, 2026 EXPIRATION

PPTA $17.50 Put

PPTA261120P00017500

Latest saved OI702Oct 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 $17.50 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. 7023510 2026-10-09: 354 OI2026-10-13: 354 OI2026-10-14: 365 OI2026-10-16: 682 OI2026-10-20: 687 OI2026-10-23: 702 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, 2026Viewing702+15
Oct 20, 2026687+5
Oct 16, 2026682+317
Oct 14, 2026365+11
Oct 13, 20263540
Oct 09, 2026354No prior observation