Data center stocks displayed mixed performance in after-hours trading on Wednesday (September 1). IREN (IREN.US) climbed more than 4% to $36.42 in after-hours trading, after hitting a session high of over 5% gains. CRWV (CRWV.US) slipped 0.84% to $81.16, having touched a session low of $80.37 during regular hours. NBIS (NBIS.US) edged down 0.82% to $197.90 after the bell, after falling nearly 6% at one point during the day. HUT (HUT.US) declined 1.01% to $76.79 in after-hours trading, with the stock bottoming at $75.31 during regular hours.

Oracle (ORCL.US) tumbled more than 5% to $141.15 in after-hours trading, weighing on sector sentiment after falling over 6% during the session. Among derivative plays, NEBX (NEBX.US) fell 2.12% to $19.89, while ORCX (ORCX.US) slipped 0.05% to $20.03. The sector showed divergent performance, with some stocks narrowing their losses compared to regular trading hours.