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Contract OI history

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Nov 20, 2026 EXPIRATION

WY $20.00 Put

WY261120P00020000

Latest saved OI424Oct 23, 2026
Last change+15vs 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. 4242120 2026-10-02: 305 OI2026-10-05: 306 OI2026-10-06: 302 OI2026-10-07: 302 OI2026-10-08: 302 OI2026-10-09: 332 OI2026-10-14: 363 OI2026-10-15: 363 OI2026-10-16: 368 OI2026-10-21: 409 OI2026-10-23: 424 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, 2026Viewing424+15
Oct 21, 2026409+41
Oct 16, 2026368+5
Oct 15, 20263630
Oct 14, 2026363+31
Oct 09, 2026332+30
Oct 08, 20263020
Oct 07, 20263020
Oct 06, 2026302-4
Oct 05, 2026306+1
Oct 02, 2026305No prior observation