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Contract OI history

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Nov 20, 2026 EXPIRATION

PS $22.50 Put

PS261120P00022500

Latest saved OI742Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PS $22.50 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. 7423710 2026-10-02: 742 OI2026-10-05: 742 OI2026-10-06: 742 OI2026-10-07: 742 OI2026-10-08: 742 OI2026-10-09: 742 OI2026-10-13: 742 OI2026-10-14: 742 OI2026-10-16: 742 OI2026-10-21: 742 OI2026-10-23: 742 OI Oct 02, 2026Oct 23, 2026

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

PS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20267420
Oct 21, 2026Viewing7420
Oct 16, 20267420
Oct 14, 20267420
Oct 13, 20267420
Oct 09, 20267420
Oct 08, 20267420
Oct 07, 20267420
Oct 06, 20267420
Oct 05, 20267420
Oct 02, 2026742No prior observation