Which technology-heavy U.S. stock index peaked before the dot-com crash began in 2000?

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

The index reached an intraday high of 5,132.52 on March 10, 2000, near the end of a speculative boom in internet and technology shares. Many companies attracted extraordinary valuations despite limited revenues, continuing losses, or business models that had not yet proved viable.

After the peak, the Nasdaq fell for more than two years and reached a low of 1,108.49 in October 2002. The decline erased trillions of dollars in market value. The crash did not mean that the internet lacked economic importance; instead, it showed that promising technology could still be priced far above realistic earnings expectations.