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Contract OI history

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Oct 23, 2026 EXPIRATION

U $39.50 Put

U261023P00039500

Latest saved OI275Oct 23, 2026
Last change+44vs previous saved observation
Saved market days10Oct 05, 2026 onwards
Daily open interest Hover a point for its date and OI
U $39.50 put open interest history 10 saved observations from 2026-10-05 to 2026-10-23. Exact values and changes are listed in the table below. 2751370 2026-10-05: 0 OI2026-10-06: 11 OI2026-10-07: 13 OI2026-10-08: 13 OI2026-10-09: 12 OI2026-10-14: 13 OI2026-10-15: 34 OI2026-10-16: 34 OI2026-10-21: 231 OI2026-10-23: 275 OI Oct 05, 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, 2026Viewing275+44
Oct 21, 2026231+197
Oct 16, 2026340
Oct 15, 202634+21
Oct 14, 202613+1
Oct 09, 202612-1
Oct 08, 2026130
Oct 07, 202613+2
Oct 06, 202611+11
Oct 05, 20260No prior observation