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Contract OI history

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Dec 18, 2026 EXPIRATION

USPH $35.00 Put

USPH261218P00035000

Latest saved OI42Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
USPH $35.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 42210 2026-10-02: 42 OI2026-10-05: 42 OI2026-10-06: 42 OI2026-10-07: 42 OI2026-10-08: 42 OI2026-10-09: 42 OI2026-10-12: 42 OI2026-10-14: 42 OI2026-10-16: 42 OI2026-10-21: 42 OI2026-10-23: 42 OI Oct 02, 2026Oct 23, 2026

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

USPH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026420
Oct 21, 2026Viewing420
Oct 16, 2026420
Oct 14, 2026420
Oct 12, 2026420
Oct 09, 2026420
Oct 08, 2026420
Oct 07, 2026420
Oct 06, 2026420
Oct 05, 2026420
Oct 02, 202642No prior observation