Lucent Technologies and the telecom bust
Lucent reached a $258 billion market cap in late 1999 supplying optical gear to telecom operators racing to build fiber networks. The company financed customer purchases to keep growth going. When carriers like WorldCom and Global Crossing collapsed, Lucent's revenue fell over 60% in two years.
Lucent took massive writedowns on vendor financing, laid off more than half its workforce.
Lucent was acquired by France's Alcatel in 2006 at a fraction of its peak value. The fiber it helped lay sat dark for years before demand caught up.
Lucent shows the risk when a hardware supplier's customers are concentrated and their spending depends on access to cheap capital. AI hyperscalers fund capex from cash flow, but the structural concentration is similar.
