NASDAQ Composite
The NASDAQ Composite is a market-capitalization-weighted index that tracks more than 3,000 companies listed on the NASDAQ stock exchange, making it one of the broadest U.S. equity benchmarks and a widely used gauge of the technology and growth sector. It is heavily weighted toward technology, consumer discretionary, and healthcare companies.
The NASDAQ Composite was launched on February 5, 1971, the same day the NASDAQ exchange opened for trading — making it one of the original benchmarks of the electronic trading era. Unlike the Dow Jones Industrial Average (30 stocks) or the S&P 500 (500 stocks), the NASDAQ Composite encompasses virtually every security listed on the NASDAQ exchange, including domestic equities, American depositary receipts (ADRs), real estate investment trusts (REITs), and limited partnership interests. This breadth makes it one of the most inclusive single-exchange indexes in the world.
The index is market-capitalization-weighted, meaning that the largest companies by total market value exert the greatest influence on daily performance. As observed in recent years, a handful of mega-cap technology companies — Apple, Microsoft, Amazon, Alphabet, Meta, NVIDIA, and Tesla — have come to dominate the index's weighting. When these companies report earnings or receive regulatory scrutiny, the ripple effects on the NASDAQ Composite can be substantial even if the broader market remains calm.
The NASDAQ Composite is often contrasted with the S&P 500 and the Dow Jones as a way to gauge the relative performance of growth-oriented technology stocks versus the broader market. Historically, the NASDAQ Composite has exhibited higher volatility than the S&P 500, with more extreme peaks and troughs. The most dramatic example occurred during the dot-com bubble: the NASDAQ Composite surged from roughly 1,000 in 1995 to a peak of 5,048.62 on March 10, 2000, before collapsing 78% to approximately 1,114 by October 2002. It did not reclaim its March 2000 peak until 2015 — a 15-year recovery that serves as a powerful educational example of valuation risk in speculative markets.
Following the 2020 COVID-19 crash, the NASDAQ Composite was the first major U.S. index to recover to pre-crash levels, driven by an acceleration in demand for cloud computing, e-commerce, streaming entertainment, and remote-work technology. Companies like Zoom Video Communications, Shopify, and Amazon saw extraordinary appreciation during 2020, propelling the index to record highs. However, this was followed by a significant correction in 2022 as the Federal Reserve raised interest rates aggressively, illustrating the sensitivity of long-duration growth stocks to changes in the discount rate.
For educational purposes, the NASDAQ Composite is one of three major NASDAQ-branded indexes — the others being the NASDAQ-100 (which tracks the 100 largest non-financial NASDAQ-listed companies) and sector-specific sub-indexes. Investors and analysts frequently compare the performance of the NASDAQ Composite to the S&P 500 as a way to assess whether growth stocks are outperforming or underperforming the broader U.S. equity market.