OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WSC $15.00 Put

WSC270115P00015000

Latest saved OI140Oct 23, 2026
Last change+3vs 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. 140700 2026-10-08: 131 OI2026-10-09: 131 OI2026-10-13: 131 OI2026-10-14: 131 OI2026-10-15: 131 OI2026-10-16: 131 OI2026-10-20: 137 OI2026-10-23: 140 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, 2026Viewing140+3
Oct 20, 2026137+6
Oct 16, 20261310
Oct 15, 20261310
Oct 14, 20261310
Oct 13, 20261310
Oct 09, 20261310
Oct 08, 2026131No prior observation