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Contract OI history

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Dec 18, 2026 EXPIRATION

WDC $300.00 Put

WDC261218P00300000

Latest saved OI1,523Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $300.00 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. 1,5237610 2026-10-09: 1,282 OI2026-10-12: 1,283 OI2026-10-14: 1,303 OI2026-10-15: 1,371 OI2026-10-16: 1,380 OI2026-10-21: 1,504 OI2026-10-23: 1,523 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, 2026Viewing1,523+19
Oct 21, 20261,504+124
Oct 16, 20261,380+9
Oct 15, 20261,371+68
Oct 14, 20261,303+20
Oct 12, 20261,283+1
Oct 09, 20261,282No prior observation