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Contract OI history

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Mar 19, 2027 EXPIRATION

WDC $350.00 Put

WDC270319P00350000

Latest saved OI849Oct 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 $350.00 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. 8494240 2026-10-09: 605 OI2026-10-12: 821 OI2026-10-14: 837 OI2026-10-15: 837 OI2026-10-16: 839 OI2026-10-21: 849 OI2026-10-23: 849 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, 2026Viewing8490
Oct 21, 2026849+10
Oct 16, 2026839+2
Oct 15, 20268370
Oct 14, 2026837+16
Oct 12, 2026821+216
Oct 09, 2026605No prior observation