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Contract OI history

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Jan 15, 2027 EXPIRATION

WSC $12.50 Put

WSC270115P00012500

Latest saved OI21Oct 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 $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. 21100 2026-10-08: 9 OI2026-10-09: 10 OI2026-10-13: 10 OI2026-10-14: 10 OI2026-10-15: 20 OI2026-10-16: 20 OI2026-10-20: 21 OI2026-10-23: 21 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, 2026Viewing210
Oct 20, 202621+1
Oct 16, 2026200
Oct 15, 202620+10
Oct 14, 2026100
Oct 13, 2026100
Oct 09, 202610+1
Oct 08, 20269No prior observation