Dow Jones Industrial Average

International Business Machines Corporation (using the trademark IBM), nicknamed Big Blue, is an American multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is a publicly traded company and one of the 30 companies in the Dow Jones Industrial Average. IBM is the largest industrial research organization in the world, with 19 research facilities across a dozen countries; for 29 consecutive years, from 1993 to 2021, it held the record for most annual U.S. patents generated by a business.

IBM was founded in 1911 as the Computing-Tabulating-Recording Company (CTR), a holding company of manufacturers of record-keeping and measuring systems. It was renamed "International Business Machines" in 1924 and soon became the leading manufacturer of punch-card tabulating systems. During the 1960s and 1970s, the IBM mainframe, exemplified by the System/360 and its successors, was the world's dominant computing platform, with the company producing 80 percent of computers in the U.S. and 70 percent of computers worldwide. Embracing both business and scientific computing, System/360 was the first family of computers designed to cover a complete range of applications from small to large.

The Dow Jones Transportation Average, (DJTA, also called the "Dow Jones Transports"), index ticker symbol DJT is a U.S. stock market index from S&P Dow Jones Indices of the transportation sector, and is the most widely recognized gauge of the American transportation sector. It is the oldest stock index still in use, being in use longer than its better-known relative, the Dow Jones Industrial Average (DJIA).

In mathematics, a time series is a series of data points indexed (or listed or graphed) in time order. Most commonly, a time series is a sequence taken at successive equally spaced points in time. Thus it is a sequence of discrete-time data. Examples of time series are heights of ocean tides, counts of sunspots, and the daily closing value of the Dow Jones Industrial Average.

A time series is very frequently plotted via a run chart (which is a temporal line chart). Time series are used in statistics, actuarial science, signal processing, pattern recognition, econometrics, mathematical finance, weather forecasting, earthquake prediction, electroencephalography, control engineering, astronomy, communications engineering, and largely in any domain of applied science and engineering which involves temporal measurements.

In finance, a stock index, or stock market index, is an index that measures the performance of a stock market, or of a subset of a stock market. It helps investors compare current stock price levels with past prices to calculate market performance.

Two of the primary criteria of an index are that it is investable and transparent: The methods of its construction are specified. Investors may be able to invest in a stock market index by buying an index fund, which is structured as either a mutual fund or an exchange-traded fund, and "tracks" an index. The difference between an index fund's performance and the index, if any, is called tracking error.

The bankruptcy of Lehman Brothers, also known as the Crash of '08 and the Lehman Shock, on September 15, 2008, was the climax of the subprime mortgage crisis. After the financial services firm was notified of a pending credit downgrade due to its heavy position in subprime mortgages, the Federal Reserve summoned several banks to negotiate financing for its reorganization. These discussions failed, and Lehman filed a Chapter 11 petition that remains the largest bankruptcy filing in U.S. history, involving more than US$600 billion in assets.

The bankruptcy triggered a 4.5% one-day drop in the Dow Jones Industrial Average, then the largest decline since the attacks of September 11, 2001. It shook confidence in the government's ability to manage the crisis and prompted a general financial panic. Money market mutual funds, a key source of credit, saw mass withdrawal demands to avoid losses, and the interbank lending market tightened, threatening banks with imminent failure. The government and the Federal Reserve system responded with several emergency measures to contain the panic.

The US bear market of 2007–2009 was a bear market that lasted from October 9, 2007 to March 9, 2009, encompassing the 2008 financial crisis. The S&P 500 lost approximately 50% of its value, but the duration of the bear market was just below average.

The bear market was confirmed in June 2008 when the Dow Jones Industrial Average (DJIA) had fallen 20% from its October 11, 2007 high. This followed the bull market of 2002–07 and was followed by the bull market of 2009–2020.

Dow Jones & Company, Inc. (also known simply as Dow Jones) is an American publishing firm owned by News Corp, and led by CEO Almar Latour. The company publishes The Wall Street Journal, Barron's, MarketWatch, Mansion Global, Financial News and Private Equity News.

The company is best known for its historical publication of the Dow Jones Industrial Average (DJIA) and related market statistics. It published the DJIA from 1882 until 2010, when News Corp then sold 90% ownership of the Dow Jones stock market indices business to CME Group; News Corp sold CME its remaining 10% in 2013.

International Business Machines Corporation, doing business as IBM (nicknamed Big Blue), is an American multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is a publicly traded company and one of the 30 companies in the Dow Jones Industrial Average. IBM is the largest industrial research organization in the world, with 19 research facilities across a dozen countries; for 29 consecutive years, from 1993 to 2021, it held the record for most annual U.S. patents generated by a business.

IBM was founded in 1911 as the Computing-Tabulating-Recording Company (CTR), a holding company of manufacturers of record-keeping and measuring systems. It was renamed "International Business Machines" in 1924 and soon became the leading manufacturer of punch-card tabulating systems. During the 1960s and 1970s, the IBM mainframe, exemplified by the System/360 and its successors, was the world's dominant computing platform, with the company producing 80 percent of computers in the U.S. and 70 percent of computers worldwide. Embracing both business and scientific computing, System/360 was the first family of computers designed to cover a complete range of applications from small to large.

S&P Dow Jones Indices LLC is a joint venture between S&P Global and the CME Group, that was announced in 2011 and later launched in 2012. It produces, maintains, licenses, and markets stock market indices as benchmarks and as the basis of investable products, such as exchange-traded funds (ETFs), mutual funds, and structured products. The company currently has employees in 15 cities worldwide, including New York, London, Frankfurt, Singapore, Hong Kong, Sydney, Beijing, and Dubai.

The company's best known indices are the S&P 500 and the Dow Jones Industrial Average (DJIA), which were created in 1957 and 1896, respectively. The company also manages the oldest index in use, the Dow Jones Transportation Index, created in 1882 by Charles Dow, the founder of The Wall Street Journal.

Salesforce, Inc. is an American cloud-based software company headquartered in San Francisco, California. It provides applications focused on sales, customer service, marketing automation, e-commerce, analytics, artificial intelligence, agentic AI, and application development.

Founded by former Oracle executive Marc Benioff in March 1999, Salesforce grew quickly, making its initial public offering in 2004. As of September 2025, Salesforce is the 61st largest company in the world by market cap with a value of nearly US$238 billion. It became the world's largest enterprise applications firm in 2022. Salesforce ranked 491st on the 2023 edition of the Fortune 500, making $31.352 billion in revenue. Since 2020, Salesforce has also been a component of the Dow Jones Industrial Average; it is the youngest company in the index.

The Travelers Companies, Inc., commonly known as Travelers, is an American multinational insurance company. It is the second-largest writer of U.S. commercial property casualty insurance, and the sixth-largest writer of U.S. personal insurance through independent agents. Travelers is incorporated in Minnesota, with headquarters in New York City, and its largest office in Hartford, Connecticut. It has been a component of the Dow Jones Industrial Average since June 8, 2009.

The company has field offices in every U.S. state, plus operations in the United Kingdom, Ireland, Singapore, China, Canada, and Brazil. Travelers ranked No. 98 in the 2021 Fortune 500 list of the largest United States corporations with total revenue of $32 billion.

The DAX (Deutscher Aktienindex (German stock index); German pronunciation: [daks] ) is a stock market index consisting of the 40 major German blue chip companies trading on the Frankfurt Stock Exchange. It is a total return index. Prices are taken from the Xetra trading venue. According to Deutsche Börse, the operator of Xetra, DAX measures the performance of the Prime Standard's 40 largest German companies in terms of order book volume and market capitalization. DAX is the equivalent of the UK FTSE 100 and the US Dow Jones Industrial Average, and because of its small company selection it does not necessarily represent the vitality of the German economy as a whole.

The L-DAX Index is an indicator of the German benchmark DAX index's performance after the Xetra trading venue closes based on the floor trading at the Börse Frankfurt trading venue. The L-DAX Index basis is the "floor" trade (Parketthandel) at the Frankfurt stock exchange; it is computed daily between 09:00 and 17:45 Hours CET. The L/E-DAX index (Late/Early DAX) is calculated from 17:55 to 22:00 CET and from 08:00 to 09:00 CET. The Eurex, a European electronic futures and options exchange based in Zurich, Switzerland with a subsidiary in Frankfurt, Germany, offers options (ODAX) and Futures (FDAX) on the DAX from 01:10 to 22:00 CET or from 02:10 to 22:00 CEST.

The American Tobacco Company was a tobacco company founded in 1890 by J. B. Duke through a merger between a number of U.S. tobacco manufacturers including Allen and Ginter, Goodwin & Company, and Kinney Brothers. The company was one of the original 12 members of the Dow Jones Industrial Average in 1896. The American Tobacco Company dominated the industry by acquiring the Lucky Strike Company and over 200 other rival firms. Federal Antitrust action begun in 1907 broke the company into several major companies in 1911.

The American Tobacco Company restructured itself in 1969, forming a holding company called American Brands, Inc., which operated American Tobacco as a subsidiary. American Brands acquired a variety of non-tobacco businesses during the 1970s and 1980s and sold its tobacco operations to Brown & Williamson in 1994. American Brands subsequently renamed itself "Fortune Brands".

Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building automation, industrial automation, and energy and sustainability solutions (ESS). Honeywell also owns and operates Sandia National Laboratories under contract with the U.S. Department of Energy. Honeywell is a Fortune 500 company, ranked 115th in 2023. In 2024, the corporation had a global workforce of approximately 102,000 employees. As of 2025, the current chairman and chief executive officer is Vimal Kapur.

The corporation's name, Honeywell International Inc., is a product of the merger of Honeywell Inc. and AlliedSignal in 1999. The corporation headquarters were consolidated with AlliedSignal's headquarters in Morristown, New Jersey. The combined company chose the name "Honeywell" because of the considerable brand recognition. Honeywell was a component of the Dow Jones Industrial Average index from 1999 to 2008. Prior to 1999, its corporate predecessors were included dating back to 1925, including early entrants in the computing and thermostat industries.

The S&P 500 is a stock market index maintained by S&P Dow Jones Indices. It comprises 503 common stocks which are issued by 500 large-cap companies traded on the American stock exchanges (including the 30 companies that compose the Dow Jones Industrial Average). The index includes about 80 percent of the American market by capitalization. It is weighted by free-float market capitalization, so more valuable companies account for relatively more weight in the index. The index constituents and the constituent weights are updated regularly using rules published by S&P Dow Jones Indices. Although called the S&P 500, the index contains 503 stocks because it includes two share classes of stock from three of its component companies (Alphabet, Fox Corporation and News Corp).

The Coca-Cola Company is an American multinational corporation founded in 1892 headquartered in Atlanta, Georgia. It manufactures, sells and markets soft drinks including Coca-Cola, other non-alcoholic beverage concentrates and syrups, and alcoholic beverages. Its stock is listed on the New York Stock Exchange and is a component of the DJIA and the S&P 500 and S&P 100 indices.

Coca-Cola was developed in 1886 by pharmacist John Stith Pemberton. At the time it was introduced, the product contained the stimulants cocaine from coca leaves and caffeine from kola nuts which together acted synergistically. The coca and the kola are the source of the product name, and led to Coca-Cola's promotion as a "healthy tonic". Pemberton had been severely wounded in the American Civil War, and had become addicted to the pain medication morphine. At the time, cocaine was being promoted as a "cure" for opioid addiction, so he developed the beverage as a patent medicine in an effort to control his addiction.

A price-weighted index is a stock market index where each constituent makes up a fraction of the index that is proportional to its price. A stock trading at $100 will thus make up 10 times more of the weight of the total index compared to a stock trading at $10.

The Dow Jones Industrial Average and Nikkei 225 are commonly given as examples of price-weighted stock market indexes, although the Nikkei is not a "pure" price-weighted index.