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Contract OI history

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Mar 19, 2027 EXPIRATION

WDC $400.00 Call

WDC270319C00400000

Latest saved OI316Oct 23, 2026
Last change+7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $400.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3161580 2026-10-09: 270 OI2026-10-12: 273 OI2026-10-14: 271 OI2026-10-15: 273 OI2026-10-16: 287 OI2026-10-21: 309 OI2026-10-23: 316 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, 2026Viewing316+7
Oct 21, 2026309+22
Oct 16, 2026287+14
Oct 15, 2026273+2
Oct 14, 2026271-2
Oct 12, 2026273+3
Oct 09, 2026270No prior observation