“A person watching the tide coming in, and who wishes to know the spot which marks the high tide, sets a stick in the sand at the points reached by the incoming waves until the stick reaches a position to where the waves do not come up to it, and finally recede enough to show that the tide has turned. This method holds good in watching and determining the flood tide of the stock market. The average of [stock prices] is the peg which marks the height of the waves. The price-waves, like those of the sea, do not recede all at once from the top. The force which moves them checks the inflow gradually, and time elapses before it can be told with certainty whether high tide has been seen or not.”

— Charles Dow, creator of the Dow Jones Industrial Average, in the January 31, 1901, edition of The Wall Street Journal


The Dow Jones Industrial Average® (The Dow) has been determining the flood tide of the market for over 130 years. Created as a simple gauge of stock market performance, this financial and cultural icon has weathered recessions, depressions, bubbles, and expansions through 23 U.S. presidencies, two world wars, and two global pandemics. Through it all The Dow has steadfastly tracked the ups and downs of the U.S. market and by extension, served as a leading indicator of U.S. and global economic health. Quoted far and wide from Wall Street to Main Street, The Dow is still the number that most investors cite when asked how the market is doing.

The Dow: 130 Years as the Original Index Icon

The Dow: 130 Years as the Original Index Icon

Creating an Icon


The Dow Jones Industrial Average made its debut on May 26, 1896. It was the brainchild of Charles Dow, the tall, bearded, and unassuming journalist who cofounded Dow Jones & Co., publisher of The Wall Street Journal. Dow’s partner, Edward Jones, also has his name attached to the average, but he had nothing to do with its creation.

The Dow was initially made up of 12 stocks (versus 30 today), including a leather-maker, a steel provider, and a sugar producer. It was calculated by adding up the prices of the component stocks and dividing the sum by a divisor.


Going off the Rails


The Dow Jones Industrial Average wasn’t Mr. Dow’s first foray into measuring the market. In 1884 he produced an average of 11 stocks, mainly railroad companies. This market indicator was intermittently published in the “Customer’s Afternoon Letter,” a precursor to The Wall Street Journal.

But Dow believed that the rails only presented a partial picture of the economy and that industrial companies—whose stocks were considered highly speculative at the time—were crucial contributors to America’s growth. Since the goods produced by the industrials were being delivered by the railroads, Dow reasoned that two separate measures could confirm broad market trends. The Wall Street Journal began publishing the industrial average and the railroad average in every issue and has done so ever since. (With airplanes and trucks bringing competition to the railroads, the components of the railroad index evolved to reflect the changing landscape and, in 1970, the railroad average was renamed the Dow Jones Transportation Average™.)


Becoming a Household Name


At the time of The Dow’s introduction, investing in the stock market was considered a highly speculative activity. And so in its early years, The Dow achieved little prominence outside the narrow canyon of Wall Street. By the 1920s, however, ordinary citizens began investing in stocks, driving the industrial average from the 100 range in 1924, up to nearly 400 before the Crash of 1929. Ironically, it was the market’s fall that brought The Dow’s reputation to the attention of everyday investors as the index lost nearly 30% of its value over the course of two days. Before that, investors had been more focused on their individual stocks, but after the crash investors were more interested in following general market conditions. The Dow made that possible.


Evolving Yet Constant


Since its early days the index has evolved with the U.S. economy, adding or eliminating companies as industries have gained or lost favor in the market. Despite those changes, one of The Dow’s original components, General Electric, remained in the iconic index until as recently as 2018. Through its historical continuity The Dow connects us to our financial past and offers valuable lessons, while also reflecting the current state of the market to millions of investors around the world each day. It doesn’t get closer to Charles Dow’s original vision than that.

How the DJIA Compares to the S&P 500

DJIA Data, Insights and Index Solutions

“US 30” is a trademark of S&P DJI Netherlands B.V., a subsidiary of S&P Dow Jones Indices LLC.

How Well Do You Know The Dow?

1. Before creating the Dow Jones Industrial Average, what was Charles Dow’s profession?

Charles Dow was a journalist, not a financier. He was born in Sterling, Connecticut, in 1851, going on to cofound Dow Jones & Co. and later The Wall Street Journal. In 1884, he introduced his first stock average in a newsletter carried by runners to subscribers on Wall Street, and in 1896 he created the Dow Jones Industrial Average. His aim was to give readers a simple, understandable way to follow broad market trends.

2. Which event helped turn The Dow from a Wall Street measure into a broader public market barometer?

In its early years, The Dow had limited prominence outside Wall Street. But after the crash of 1929, when the index lost nearly 30% of its value over two days, investors became more focused on following general market conditions rather than just individual stocks. That was a key moment in The Dow’s rise as a widely watched market barometer.

3. During which market crisis did The Dow fall back to nearly its original 1896 launch level?

During the depths of the Great Depression in 1932, the DJIA hit a low of 41.22, nearly the level at which it was launched 36 years earlier at 40.94. That episode remains one of the clearest reminders that The Dow’s long history spans not only periods of growth, but also some of the most severe market downturns in U.S. history.

4. Has the US 30 always had 30 constituents?

The DJIA initially contained 12 stocks, expanded to 20 stocks in 1916 and increased to the now familiar stock count of 30 in 1928. These changes have impacted the constituents’ average tenure. Index constituents are reviewed monthly for ongoing eligibility.

5. How are DJIA constituent weightings assigned?

The DJIA is a price-weighted index. Since the index is price weighted, the Index Committee evaluates stock price when considering a company for inclusion. The Index Committee also monitors whether the highest-priced stock in the index has a price more than 10 times that of the lowest. Because the DJIA is price weighted, the ratio of price-to-weight is the same for every stock.

6. Is the Utilities sector represented in the US 30?

The DJIA has a 0% weight in the Utilities sector. This sector is carved out to form a separate, complementary index called the Dow Jones Utility Average. The Transportation GICS® industry group is also carved out to form the Dow Jones Transportation Average. The full group of Dow Jones Average indices are outlined as follows. Dow Jones Composite Average (65 constituents) = Dow Jones Industrial Average (30 constituents) + Dow Jones Transportation Average (20 constituents) + Dow Jones Utility Average (15 constituents).

7. Which sector saw the largest increase in weight in the DJIA between 2012 and 2025?

Financials saw the largest increase in weight in this dataset, rising from about 10.8% in 2012 to 28.3% in 2025 .

8. After taking 76 years to first close above 1,000, roughly how long did it take The Dow to go from 1,000 to 10,000?

The Dow first closed above 1,000 in November 1972 and crossed 10,000 in March 1999—roughly 27 years later. A journey that once took 76 years was compressed into just over a quarter-century, a direct reflection of how compounding economic growth accelerates over time.

Why it matters: Only a benchmark with 130 years of continuous live history can show the full arc of that acceleration—from the painstaking grind of the early decades to the faster cadence of milestones in the modern era. No reconstructed or back-filled series can replicate that progression in real time.

Source: National Bureau of Economic Research (NBER), US Business Cycle Expansions and Contractions, nber.org

9. Outside the U.S., from which region do DJIA companies derive the largest share of revenue?

Outside the U.S., DJIA companies derive the largest share of revenue from the Asia-Pacific region, underscoring that the index’s relevance to the region is not just about market sentiment, but also about reflecting underlying business activity in the region.

10. About how large is the total ecosystem of financial products linked to the Dow Jones Industrial Average?

The Dow serves as the foundation for a wide range of financial products such as exchange-traded funds (ETFs), exchange-traded derivatives (ETDs) and mutual funds. Altogether, these products represent a combined value of approximately USD 113.4 billion .

11. Do The 500® and The Dow use the same weighting method?

This is one of the most important structural differences between the two indices. The 500 weights companies by float-adjusted market capitalization, while The Dow weights them by stock price. That means the two indices can hold many of the same large-cap companies but still reflect the market differently.

12. Is The Dow a poor indicator of overall U.S. market performance because it only tracks 30 stocks?

Despite tracking only 30 companies, The Dow has performed similarly to the far broader S&P 500 over the long term. Between Dec. 31, 1977, and Nov. 30, 2023, The Dow had an annualized price return of 8.93%—while the S&P 500 had a nearly identical 8.90% annualized price return. The reason is straightforward: The Dow's 30 components are not a random sample—they are among the largest, most economically influential companies in the U.S. economy, selected by a committee specifically to reflect the breadth of industry in the U.S. Breadth of constituent count and representativeness of market performance are not the same thing.

13. The Dow launched on May 26, 1896—the same year as which other iconic institution?

The first games of the modern era were held in Athens from April 6–15, 1896—just six weeks before The Dow was launched. Both institutions were launched in 1896 and both are still going strong 130 years later.