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Contract OI history

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Oct 23, 2026 EXPIRATION

WDC $270.00 Put

WDC261023P00270000

Latest saved OI367Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $270.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3671830 2026-10-09: 47 OI2026-10-12: 47 OI2026-10-14: 297 OI2026-10-15: 303 OI2026-10-16: 356 OI2026-10-21: 348 OI2026-10-23: 367 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

WDC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing367+19
Oct 21, 2026348-8
Oct 16, 2026356+53
Oct 15, 2026303+6
Oct 14, 2026297+250
Oct 12, 2026470
Oct 09, 202647No prior observation