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Contract OI history

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Oct 23, 2026 EXPIRATION

U $40.00 Put

U261023P00040000

Latest saved OI434Oct 23, 2026
Last change+24vs 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. 4342170 2026-10-02: 188 OI2026-10-05: 186 OI2026-10-06: 213 OI2026-10-07: 213 OI2026-10-08: 213 OI2026-10-09: 255 OI2026-10-14: 276 OI2026-10-15: 342 OI2026-10-16: 343 OI2026-10-21: 410 OI2026-10-23: 434 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, 2026434+24
Oct 21, 2026Viewing410+67
Oct 16, 2026343+1
Oct 15, 2026342+66
Oct 14, 2026276+21
Oct 09, 2026255+42
Oct 08, 20262130
Oct 07, 20262130
Oct 06, 2026213+27
Oct 05, 2026186-2
Oct 02, 2026188No prior observation