OITracker Cboe delayed data

Contract OI history

Back to WDC

Mar 19, 2027 EXPIRATION

WDC $310.00 Put

WDC270319P00310000

Latest saved OI276Oct 23, 2026
Last change+117vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WDC $310.00 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. 2761380 2026-10-09: 124 OI2026-10-12: 127 OI2026-10-14: 135 OI2026-10-15: 134 OI2026-10-16: 140 OI2026-10-21: 159 OI2026-10-23: 276 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, 2026Viewing276+117
Oct 21, 2026159+19
Oct 16, 2026140+6
Oct 15, 2026134-1
Oct 14, 2026135+8
Oct 12, 2026127+3
Oct 09, 2026124No prior observation