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According to the "circuit breaker" regulation on U.S. equity markets, the market will be closed for the rest of the day if the Standard and Poor's 500 Index declines by a total of 20% in a single day. A 20% decline equals 493 points if the Standard and Poor's 500 Index ends at 2,460.
Stocks and shares of businesses are traded on the equity market. Either over the counter or through stock exchanges, equities are traded in equity markets. An equity market, also known as a stock market or share market, enables sellers and buyers to transact in equity or shares on the same platform.
The market for trading equity instruments is known as the equity market (sometimes known as the stock market). Stocks are securities that represent a claim on a company's earnings and assets (Mishkin 1998). Shares of common stock, such as those traded on the New York Stock Exchange, are an illustration of an equity instrument.
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