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Nasdaq Composite

Stock market index

  • 5 min read
  • 2 chapters

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Through Stock exchange, Information technology and Order of magnitude

The Nasdaq Composite is a capitalization-weighted index; its price is calculated by taking the sum of the products of closing price and index share of all of the securities in the index. The sum is then divided by a divisor which reduces the order of magnitude of the result.

Overview

The Nasdaq Composite is a capitalization-weighted index, meaning each component weighted according to its market value, and the index's total value is adjusted using a divisor to normalize its scale. It tracks nearly all equity securities listed on the Nasdaq exchange. Eligible securities include common stocks, American depositary receipts (ADRs), real estate investment trusts (REITs), limited partnership interests, tracking stocks, and shares of beneficial interest. The index excludes closed-end funds, convertible bonds, exchange-traded funds (ETFs), preferred stocks, rights, warrants, units, and other derivatives. The index is rebalanced quarterly, and securities that no longer meet eligibility requirements are removed.

Investing in the Nasdaq Composite

Index funds that attempt to track the Nasdaq Composite include Fidelity Investments' FNCMX mutual fund and ONEQ exchange-traded fund (ETF). Invesco offers the QQQ ETF, which matches the performance of the Nasdaq-100, a different index which tracks 100 of the largest non-financial companies in the Nasdaq Composite and is 90% correlated with the Nasdaq Composite.

Selection criteria

To be eligible for inclusion in the Nasdaq Composite, a security's U.S. listing must be exclusively on the Nasdaq stock market unless the security was dually listed on another U.S. market prior to 2004 and has continuously maintained such listing, and must be one of the following security types:

  • American depositary receipts (ADRs)
  • Common stock / ordinary shares
  • Limited partnership interests
  • Real estate investment trusts (REITs)
  • Shares of beneficial interest (SBIs)
  • Tracking stocks

Closed-end funds, convertible bonds, exchange-traded funds, preferred stocks, rights, warrants, units and other derivatives are not included in the index. If at any time a component security no longer meets the required criteria, the security is removed from the index.

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