OITracker Cboe delayed data

Contract OI history

Back to WDC

Mar 19, 2027 EXPIRATION

WDC $380.00 Put

WDC270319P00380000

Latest saved OI320Oct 23, 2026
Last change-108vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $380.00 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. 4282140 2026-10-09: 363 OI2026-10-12: 411 OI2026-10-14: 413 OI2026-10-15: 405 OI2026-10-16: 409 OI2026-10-21: 428 OI2026-10-23: 320 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, 2026Viewing320-108
Oct 21, 2026428+19
Oct 16, 2026409+4
Oct 15, 2026405-8
Oct 14, 2026413+2
Oct 12, 2026411+48
Oct 09, 2026363No prior observation