X is an extension to a ticker symbol. It denotes that the security is a mutual fund.   For example, Vanguard offers a variety of mutual funds. The tickers end in X. Many companies have seve...

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X-efficiency describes a company's inability to get the maximum output for its inputs due to a lack of competitive pressure. Economist Harvey Leibenstein, a Harvard professor who studied the psyc...

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An X-mark signature is a mark made by a person who is not able to sign his or her name. Let's say John Doe suffers a traumatic brain injury and can no longer read or write. He marries his high sc...

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XBRL stands for Extensible Business Reporting Language. XBRL is a code through which companies and other entities can communicate business information. It is part of the XML (Extensible Markup Langua...

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XD is a symbol to indicate that a security is trading ex-dividend. The ex-dividend date is the day on which all shares bought and sold no longer come attached with the right to receive the most recen...

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XDIS is a symbol to indicate that a security is trading ex-dividend (or ex-distribution, as the abbreviation suggests). The ex-dividend date is the day on which all shares bought and sold no longer c...

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Xenocurrency is a currency that trades in foreign markets. For example, Euros trade in American markets, making the Euro a xenocurrency. Xenocurrency is basically foreign currency. The world is full...

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Xetra is a trading system owned by the Deutsche Borse (German stock exchange). Started in 1997, about 250 participants (mostly brokerages, dealers, and market makers) in 19 countries use Xetra, which...

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An XPO is a perpetual option. An option gives the holder the right, but not the obligation, to purchase (or sell) 100 units of a particular underlying security at a specified strike price on or befor...

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XRT is an extension to a ticker symbol. It denotes that the security is trading without rights. Stock rights are instruments that companies give to shareholders. They allow shareholders to buy more s...

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XW is a ticker-symbol extension that signifies that a stock is trading ex-warrant. Warrants are securities that give the holder the right, but not the obligation, to buy a certain number of securitie...

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