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Contract OI history

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Apr 16, 2027 EXPIRATION

WSC $12.50 Put

WSC270416P00012500

Latest saved OI340Oct 23, 2026
Last change+37vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
WSC $12.50 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. 3401700 2026-10-08: 12 OI2026-10-09: 12 OI2026-10-13: 12 OI2026-10-14: 12 OI2026-10-15: 301 OI2026-10-16: 301 OI2026-10-20: 303 OI2026-10-23: 340 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, 2026Viewing340+37
Oct 20, 2026303+2
Oct 16, 20263010
Oct 15, 2026301+289
Oct 14, 2026120
Oct 13, 2026120
Oct 09, 2026120
Oct 08, 202612No prior observation