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Contract OI history

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Sep 17, 2027 EXPIRATION

WDC $370.00 Put

WDC270917P00370000

Latest saved OI302Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $370.00 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. 3031510 2026-10-09: 255 OI2026-10-12: 264 OI2026-10-14: 274 OI2026-10-15: 278 OI2026-10-16: 284 OI2026-10-21: 303 OI2026-10-23: 302 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, 2026Viewing302-1
Oct 21, 2026303+19
Oct 16, 2026284+6
Oct 15, 2026278+4
Oct 14, 2026274+10
Oct 12, 2026264+9
Oct 09, 2026255No prior observation