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Contract OI history

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Dec 18, 2026 EXPIRATION

WSC $17.50 Call

WSC261218C00017500

Latest saved OI297Oct 23, 2026
Last change+9vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
WSC $17.50 call open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 2971480 2026-10-08: 151 OI2026-10-09: 264 OI2026-10-13: 265 OI2026-10-14: 265 OI2026-10-15: 271 OI2026-10-16: 271 OI2026-10-20: 288 OI2026-10-23: 297 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, 2026Viewing297+9
Oct 20, 2026288+17
Oct 16, 20262710
Oct 15, 2026271+6
Oct 14, 20262650
Oct 13, 2026265+1
Oct 09, 2026264+113
Oct 08, 2026151No prior observation