---
title: 45 billion writedown
date: "2001-08-03T12:00:00Z"
categories:
  - links
wp_id: 1724
description: JDS Uniphase recorded a $45 billion writedown, marking the largest corporate loss in history. This massive impairment charge reflects the extreme fallout from the fiber optic bubble and the broader telecommunications market crash in 2001.
keywords: [jds uniphase, writedown, corporate finance, fiber optics, dot-com bubble, telecommunications]
---

A [$45 billion writedown](http://slate.msn.com/moneybox/entries/01-07-31_112833.asp) from JDS Uniphase. The largest ever loss in corporate history.