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Contract OI history

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Dec 18, 2026 EXPIRATION

W $85.00 Put

W261218P00085000

Latest saved OI78Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
W $85.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 78390 2026-10-02: 48 OI2026-10-05: 48 OI2026-10-06: 48 OI2026-10-07: 48 OI2026-10-08: 57 OI2026-10-09: 62 OI2026-10-13: 62 OI2026-10-14: 62 OI2026-10-15: 62 OI2026-10-16: 77 OI2026-10-21: 77 OI2026-10-23: 78 OI Oct 02, 2026Oct 23, 2026

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

W contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202678+1
Oct 21, 2026Viewing770
Oct 16, 202677+15
Oct 15, 2026620
Oct 14, 2026620
Oct 13, 2026620
Oct 09, 202662+5
Oct 08, 202657+9
Oct 07, 2026480
Oct 06, 2026480
Oct 05, 2026480
Oct 02, 202648No prior observation