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Contract OI history

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Mar 19, 2027 EXPIRATION

UNH $310.00 Put

UNH270319P00310000

Latest saved OI552Oct 23, 2026
Last change+19vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $310.00 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. 5522760 2026-10-02: 415 OI2026-10-05: 441 OI2026-10-06: 460 OI2026-10-07: 460 OI2026-10-08: 460 OI2026-10-09: 449 OI2026-10-14: 528 OI2026-10-15: 527 OI2026-10-16: 515 OI2026-10-21: 533 OI2026-10-23: 552 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, 2026Viewing552+19
Oct 21, 2026533+18
Oct 16, 2026515-12
Oct 15, 2026527-1
Oct 14, 2026528+79
Oct 09, 2026449-11
Oct 08, 20264600
Oct 07, 20264600
Oct 06, 2026460+19
Oct 05, 2026441+26
Oct 02, 2026415No prior observation