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Contract OI history

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Dec 18, 2026 EXPIRATION

WSC $22.50 Put

WSC261218P00022500

Latest saved OI88Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
WSC $22.50 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 89440 2026-10-08: 89 OI2026-10-09: 89 OI2026-10-13: 89 OI2026-10-14: 89 OI2026-10-15: 89 OI2026-10-16: 88 OI2026-10-20: 88 OI2026-10-23: 88 OI Oct 08, 2026Oct 23, 2026

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

WSC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing880
Oct 20, 2026880
Oct 16, 202688-1
Oct 15, 2026890
Oct 14, 2026890
Oct 13, 2026890
Oct 09, 2026890
Oct 08, 202689No prior observation