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Contract OI history

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Nov 20, 2026 EXPIRATION

WSC $15.00 Put

WSC261120P00015000

Latest saved OI328Oct 23, 2026
Last change-25vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
WSC $15.00 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. 3531760 2026-10-08: 274 OI2026-10-09: 275 OI2026-10-13: 273 OI2026-10-14: 273 OI2026-10-15: 292 OI2026-10-16: 284 OI2026-10-20: 353 OI2026-10-23: 328 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, 2026Viewing328-25
Oct 20, 2026353+69
Oct 16, 2026284-8
Oct 15, 2026292+19
Oct 14, 20262730
Oct 13, 2026273-2
Oct 09, 2026275+1
Oct 08, 2026274No prior observation