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Contract OI history

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Mar 19, 2027 EXPIRATION

UNH $320.00 Put

UNH270319P00320000

Latest saved OI1,303Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $320.00 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. 1,3046520 2026-10-02: 805 OI2026-10-05: 838 OI2026-10-06: 926 OI2026-10-07: 957 OI2026-10-08: 957 OI2026-10-09: 1,109 OI2026-10-14: 1,258 OI2026-10-15: 1,274 OI2026-10-16: 1,280 OI2026-10-21: 1,304 OI2026-10-23: 1,303 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, 2026Viewing1,303-1
Oct 21, 20261,304+24
Oct 16, 20261,280+6
Oct 15, 20261,274+16
Oct 14, 20261,258+149
Oct 09, 20261,109+152
Oct 08, 20269570
Oct 07, 2026957+31
Oct 06, 2026926+88
Oct 05, 2026838+33
Oct 02, 2026805No prior observation