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Contract OI history

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Dec 18, 2026 EXPIRATION

UAL $40.00 Put

UAL261218P00040000

Latest saved OI4,330Oct 23, 2026
Last change-20vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
UAL $40.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,3502,1750 2026-10-09: 4,346 OI2026-10-14: 4,346 OI2026-10-15: 4,346 OI2026-10-16: 4,350 OI2026-10-21: 4,350 OI2026-10-23: 4,330 OI Oct 09, 2026Oct 23, 2026

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

UAL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,330-20
Oct 21, 20264,3500
Oct 16, 20264,350+4
Oct 15, 20264,3460
Oct 14, 20264,3460
Oct 09, 20264,346No prior observation