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Contract OI history

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Oct 30, 2026 EXPIRATION

WDC $395.00 Put

WDC261030P00395000

Latest saved OI260Oct 23, 2026
Last change-17vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $395.00 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. 2771380 2026-10-09: 244 OI2026-10-12: 244 OI2026-10-14: 256 OI2026-10-15: 260 OI2026-10-16: 254 OI2026-10-21: 277 OI2026-10-23: 260 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, 2026Viewing260-17
Oct 21, 2026277+23
Oct 16, 2026254-6
Oct 15, 2026260+4
Oct 14, 2026256+12
Oct 12, 20262440
Oct 09, 2026244No prior observation