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Contract OI history

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Dec 18, 2026 EXPIRATION

WY $20.00 Put

WY261218P00020000

Latest saved OI359Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WY $20.00 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. 3591790 2026-10-02: 25 OI2026-10-05: 29 OI2026-10-06: 41 OI2026-10-07: 41 OI2026-10-08: 41 OI2026-10-09: 41 OI2026-10-14: 47 OI2026-10-15: 47 OI2026-10-16: 62 OI2026-10-21: 359 OI2026-10-23: 359 OI Oct 02, 2026Oct 23, 2026

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

WY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3590
Oct 21, 2026359+297
Oct 16, 202662+15
Oct 15, 2026470
Oct 14, 202647+6
Oct 09, 2026410
Oct 08, 2026410
Oct 07, 2026410
Oct 06, 202641+12
Oct 05, 202629+4
Oct 02, 202625No prior observation