Which U.S. technology-heavy stock index peaked in March 2000 before the dot-com bubble burst?

The Nasdaq Composite was the U.S. technology-heavy stock index that peaked in March 2000 before the dot-com bubble burst.

The index reached an intraday high of 5,132.52 on March 10, 2000. During the late 1990s, investors poured money into internet and technology companies, often assigning enormous valuations to businesses with little revenue or no profits. The Nasdaq became the most visible measure of that enthusiasm because it contained many technology and growth companies.

After the peak, technology shares fell sharply. The decline was amplified by rising skepticism about business models, tighter monetary conditions, and the failure of many internet companies to meet optimistic expectations. The broader downturn became known as the dot-com crash or the bursting of the dot-com bubble.

The Nasdaq Composite is an index, not a single company. It includes thousands of stocks listed on Nasdaq, and its composition has changed over time. The Nasdaq later surpassed its 2000 high, but the recovery took many years.