A barometer is a selective compilation of economic and market data designed to represent larger trends. Common barometers include consumer spending, housing starts, interest rates, and prominent stock market indices like the Dow Jones Industrial Average and Standard & Poor's 500 Stock Index.
Black Monday refers to the stock market crash on October 19, 1987, when the Dow Jones Industrial Average (DJIA) plummeted 508 points, or 22.6%—the largest single-day percentage decline in history.
The Dow Jones Industrial Average (DJIA) is an index that tracks the stock prices of 30 significant publicly traded companies on the New York Stock Exchange (NYSE) and the NASDAQ. It serves as a key indicator of the performance of the industrial sector and the overall U.S. stock market.
Dow Theory is a theory that a major trend in the stock market must be confirmed by similar movements in the Dow Jones Industrial Average (DJIA) and the Dow Jones Transportation Average (DJTA). According to this theory, a significant trend is not confirmed until both Dow Jones indexes reach new highs or lows; if they do not, the market is likely to fall back to its previous trading range.
A Flash Crash refers to a very sudden and severe drop in security prices, followed by a quick recovery. The term is most famously associated with the nearly 1,000-point drop in the Dow Jones Industrial Average (DJIA) on May 6, 2010.
The premier U.S. stock exchange, established in 1792 and recognized for its significant influence on global financial markets.
