Seagate Technology experienced a sharp downward movement due to growing investor concerns over potential shifts in the hard disk drive supply-demand dynamic. The primary catalyst behind the selloff was reports that rival manufacturer Toshiba intends to invest approximately sixty billion yen to double its production capacity for high-capacity drives targeted at artificial intelligence data centers by fiscal 2027. Toshiba’s expansion, centered at its manufacturing facilities in the Philippines, represents its first major investment in hard drive production capacity in several years and marks a direct challenge to capture a larger share of the hyperscale cloud…