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Contract OI history

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Nov 20, 2026 EXPIRATION

PSN $40.00 Put

PSN261120P00040000

Latest saved OI759Oct 23, 2026
Last change+673vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PSN $40.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7593790 2026-10-02: 49 OI2026-10-05: 49 OI2026-10-06: 50 OI2026-10-07: 50 OI2026-10-08: 67 OI2026-10-09: 72 OI2026-10-13: 75 OI2026-10-14: 75 OI2026-10-15: 79 OI2026-10-16: 81 OI2026-10-21: 86 OI2026-10-23: 759 OI Oct 02, 2026Oct 23, 2026

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

PSN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing759+673
Oct 21, 202686+5
Oct 16, 202681+2
Oct 15, 202679+4
Oct 14, 2026750
Oct 13, 202675+3
Oct 09, 202672+5
Oct 08, 202667+17
Oct 07, 2026500
Oct 06, 202650+1
Oct 05, 2026490
Oct 02, 202649No prior observation