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Contract OI history

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Nov 20, 2026 EXPIRATION

WES $45.00 Put

WES261120P00045000

Latest saved OI315Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WES $45.00 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. 3151570 2026-10-02: 223 OI2026-10-05: 222 OI2026-10-06: 222 OI2026-10-07: 229 OI2026-10-08: 257 OI2026-10-09: 258 OI2026-10-13: 283 OI2026-10-14: 293 OI2026-10-16: 304 OI2026-10-20: 315 OI2026-10-23: 315 OI Oct 02, 2026Oct 23, 2026

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

WES contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3150
Oct 20, 2026315+11
Oct 16, 2026304+11
Oct 14, 2026293+10
Oct 13, 2026283+25
Oct 09, 2026258+1
Oct 08, 2026257+28
Oct 07, 2026229+7
Oct 06, 20262220
Oct 05, 2026222-1
Oct 02, 2026223No prior observation