The Dow now tracks 30 major US companies across various industries

The Dow Jones Industrial Average is a stock market index

The Dow Jones Industrial Average tracks 30 large U.S. companies from all major U.S. sectors except for utilities and transportation. It's considered a bellwether of the U.S. economy.

See every company in and out of the Dow since 1928

The index has had 30 companies since 1928. See each company’s tenure on the index and what firms were added or replaced by year and industry.

The Dow Jones Industrial Average was created in 1896

Charles Dow introduced the DJIA on May 26, 1896, as a simple average of 12 industrial stocks. Although it became the nation’s most enduring market index, none of its original companies remain in the Dow today.

The Dow remains a shorthand for America’s economic health

For over a century, the Dow Jones Industrial Average has been one of the most closely watched market barometers. Its rises and falls dominate headlines and politics, shaping how Americans perceive the strength of their economy.

Critics argue the Dow no longer reflects the modern economy

With only 30 companies and a price-weighted formula, skeptics say the DJIA underrepresents vast sectors of the market. They claim it is outdated, though its close correlation with the broader S&P 500 keeps it relevant.

Even iconic companies can get dropped from the Dow

The Dow’s lineup evolves as the economy changes. General Electric, part of the original 1896 index, was removed in 2018, after 122 years. ExxonMobil, once the world’s largest company, was replaced by Salesforce in 2020.

Dow components are chosen by a committee, not a formula

Unlike many indices, the Dow has no strict rules for inclusion. A small committee at S&P Dow Jones Indices uses judgment—favoring companies with strong reputations, steady growth, and broad investor interest.

The Dow Divisor keeps the index consistent through time

To adjust for stock splits, mergers, and replacements, the DJIA uses a figure called the Dow Divisor. Originally valued around 12 in 1896, and now less than one, it ensures today’s index levels remain comparable with the past.

The Dow’s price-weighted formula makes stock price matter more than size

Unlike most indices, which weigh companies by market value, the DJIA is price-weighted—meaning higher-priced stocks have more influence on its movements. As a result, a company’s share price matters more than its overall size.

Stock indexes track markets through groupings of companies

A stock index measures the performance of selected companies, offering a snapshot of market trends. Examples include the Dow Jones Industrial Average, the S&P 500, and the Nasdaq Composite.

In 1999, Microsoft and Intel’s addition signaled the information tech era for the Dow

Microsoft and Intel became the first information technology firms added to the DJIA. Their inclusion marked a turning point—the digital revolution and tech began to drive the American economy.

Relive the biggest swings in the Dow’s history

From the 1929 crash to the Coronavirus Pandemic in 2020, this piece spotlights five of the most dramatic single-day moves in the Dow’s 125-year history.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

The Nasdaq 100 index tracks the exchange's 100 largest non-financial companies

This index was created in 1985, over a decade after the Nasdaq first launched. The companies on the index must meet certain criteria, including having a minimum average daily trading value of $5M.

Many of the top companies in the US by market cap began as tech startups

Combined, the top seven companies by market cap in the US as of December 2024—Apple, Nvidia, Microsoft, Alphabet, Amazon, Meta, and Tesla—were worth more than $16T at the time.

Dozens of S&P 500 stocks, including Coca-Cola and Walmart—known as the dividend aristocrats—have increased dividends every year for 25 years

The S&P 500 is composed of 500 companies, but has more than 500 total listings

Since some large companies have dual-class stock structures (like Alphabet and Fox Corporation), there are multiple listings on the S&P 500 for the same company. S&P Global has banned and then reversed bans on companies with dual-class structures multiple times since first allowing dual-class stocks in 2014.

The 25 biggest IPOs in US history

These 25 companies—which include UPS, Uber Technologies, AT&T, and The Kraft Heinz Co.—had some of the biggest IPO drops in US history. However, not all these drops led to long-term (or even immediate) success.

The number of publicly traded companies has decreased in recent years

In 1996, more than 7,300 companies traded publicly on US stock markets, but that number has recently dropped to 4,300. Economists point to two reasons: First, going public requires full disclosure of operations, exposing it to scrutiny from investors, competitors, and analysts. Second, the IPO process is expensive and time-consuming.

S&P 500 stocks that have increased their dividends for 25 consecutive years are called 'dividend aristocrats'

Dividend aristocrats are considered the best of the best on the S&P 500—all with market capitalizations above $3B, more than $5M in daily trading volume, and consecutive dividend growth for a minimum of 25 years. Some examples of dividend aristocrats are Coca-Cola, Procter & Gamble, and Walmart.

40 key stock market terms, explained

Liquidity. Forex. Capitalization. Blue chip stocks. These are just a few pieces of stock market vocabulary most people who don't spend all day on a trading floor might not know. Thankfully, we found a fun infographic that makes it easier to learn what 40 key stock market terms mean and why each of them matters.

See the world’s largest stock markets in 1900 versus 2023

The US is now home to the world's largest stock market, but that wasn't always the case. This data visualization shows where the largest stock markets in the world were in 1900, then compares that map to the current geographical distribution of stock markets today, based on each country’s percentage share of global market capitalization. See what it looks like by clicking here.

There are more than 300 different thematic ETFs

Exchange-traded funds seem to offer something for everyone. As tracked by ETF.com, there are 338 thematic ETFs, offering exposure to “baskets” of stocks covering global infrastructure, genomics, cannabis, and more.

League tables show the number of deals top investment banks do in a time period

These tables provide a visual to help keep track of the leading companies in investment banking. Companies such as JPMorgan and Goldman Sachs typically sit up top.

Explore a list of well-known monopolies

Many American monopolies popped up during the rapid industrial growth of the Gilded Age. Industries like steel, tobacco, railroads, and telecommunication have all been monopolized at some point in history.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

The iPhone's impact in 10 charts

It's been almost 20 years since Steve Jobs first unveiled the iPhone, the device that would come to define Apple for years and change not just the smartphone industry but the world at large. 10 examples of the iPhone's impact include its all-screen touch interface and the way it led to the rise of app culture.

Walt Disney's 1957 corporate strategy document

From TV to music to amusement parks, Disney is widely regarded as one of the most successful American companies of all time. That's partly because Walt Disney was carefully building a corporate strategy from day one that accounted for the company's publications, merchandise licensing, comic strips, and more. See his 1957 corporate strategy document for yourself (spoiler alert, it's covered in Mickey Mouse illustrations).

A century of Billboard issues documenting the evolution of popular music.

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

An initial public offering or 'IPO' is the process of a private company becoming public by putting shares of the company on the stock market for purchase.

US consumers collectively owe more than $1T to credit card companies—almost as much as they owe in auto loans.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

View the ten deadliest tornadoes in US history.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

Browse a detailed visual analysis of over 200,000 similes—comparisons that often use 'like' or 'as'—from popular fiction to see how frequently writers the same idiomatic expressions.

Track the location of the Voyager probes, currently between 13 and 15 billion miles away from Earth.

When a Paris department store hesitated to sell Estée Lauder's perfume, she 'accidentally' broke a bottle, causing the smell to spread throughout the store and shoppers to start asking to buy the scent.

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by more than 1.5 million Muslims each year.

This poison ivy knowledge quiz—accompanied by photos of the plant's varied forms—may help you identify this common rash-inducing growth.

Power lines are dotted with large, brightly colored balls to improve the visibility of these thin wires to helicopters and small planes and help prevent potential crashes.