Western Digital Shares Sink 10% as Toshiba Plans to Double HDD Output

Key Facts

1Western Digital shares fell 10% following Toshiba's announcement to double its hard drive production capacity.

2Investors fear that increased supply from Toshiba will erode high prices currently driven by market shortages.

Western Digital shares fell 10% following Toshiba's announcement to double its hard drive production capacity. Yahoo Finance reported that investors fear the increased supply from Toshiba will erode the high prices currently driven by market shortages.

WDC closed at $415.29 on October 2, 2026, having reached a day high of $427.71 and a low of $396.57. The market anticipates that Toshiba's supply expansion will normalize earnings and end the period of high profit margins previously sustained by HDD shortages.