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Contract OI history

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Nov 20, 2026 EXPIRATION

WDC $540.00 Put

WDC261120P00540000

Latest saved OI225Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $540.00 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. 2361180 2026-10-09: 236 OI2026-10-12: 236 OI2026-10-14: 235 OI2026-10-15: 235 OI2026-10-16: 232 OI2026-10-21: 225 OI2026-10-23: 225 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, 2026Viewing2250
Oct 21, 2026225-7
Oct 16, 2026232-3
Oct 15, 20262350
Oct 14, 2026235-1
Oct 12, 20262360
Oct 09, 2026236No prior observation