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Contract OI history

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Mar 19, 2027 EXPIRATION

UNH $400.00 Put

UNH270319P00400000

Latest saved OI947Oct 23, 2026
Last change-2vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $400.00 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. 9494740 2026-10-02: 693 OI2026-10-05: 698 OI2026-10-06: 786 OI2026-10-07: 794 OI2026-10-08: 794 OI2026-10-09: 807 OI2026-10-14: 814 OI2026-10-15: 843 OI2026-10-16: 887 OI2026-10-21: 949 OI2026-10-23: 947 OI Oct 02, 2026Oct 23, 2026

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

UNH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing947-2
Oct 21, 2026949+62
Oct 16, 2026887+44
Oct 15, 2026843+29
Oct 14, 2026814+7
Oct 09, 2026807+13
Oct 08, 20267940
Oct 07, 2026794+8
Oct 06, 2026786+88
Oct 05, 2026698+5
Oct 02, 2026693No prior observation