The Nasdaq Composite reached its peak before the dot-com crash on March 10, 2000.
During the late 1990s, investors poured money into internet and technology companies, many of which had little revenue or no profits. Easy access to venture capital, enthusiasm for online business models, and rapidly rising share prices encouraged companies to list publicly and investors to accept very high valuations.
The Nasdaq Composite closed at 5,048.62 on March 10, 2000. After that peak, technology shares fell as investors reassessed earnings prospects, business models, and valuations. The decline continued for several years, and the index lost a large share of its value before eventually recovering in the following decade.
The dot-com crash was not a single trading-day event. It was a prolonged collapse in technology and internet valuations. The Nasdaq’s peak date is therefore different from the dates of later major one-day declines.