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Contract OI history

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Nov 20, 2026 EXPIRATION

U $40.00 Put

U261120P00040000

Latest saved OI705Oct 23, 2026
Last change+26vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
U $40.00 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. 8564280 2026-10-02: 856 OI2026-10-05: 666 OI2026-10-06: 588 OI2026-10-07: 578 OI2026-10-08: 578 OI2026-10-09: 580 OI2026-10-14: 614 OI2026-10-15: 641 OI2026-10-16: 680 OI2026-10-21: 679 OI2026-10-23: 705 OI Oct 02, 2026Oct 23, 2026

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

U contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing705+26
Oct 21, 2026679-1
Oct 16, 2026680+39
Oct 15, 2026641+27
Oct 14, 2026614+34
Oct 09, 2026580+2
Oct 08, 20265780
Oct 07, 2026578-10
Oct 06, 2026588-78
Oct 05, 2026666-190
Oct 02, 2026856No prior observation