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Contract OI history

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Jun 17, 2027 EXPIRATION

WDC $270.00 Put

WDC270617P00270000

Latest saved OI409Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $270.00 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. 4732360 2026-10-09: 312 OI2026-10-12: 311 OI2026-10-14: 473 OI2026-10-15: 394 OI2026-10-16: 406 OI2026-10-21: 407 OI2026-10-23: 409 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, 2026Viewing409+2
Oct 21, 2026407+1
Oct 16, 2026406+12
Oct 15, 2026394-79
Oct 14, 2026473+162
Oct 12, 2026311-1
Oct 09, 2026312No prior observation