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An exchange-traded fund (ETF) is a basket of securities that tracks or seeks to outperform an underlying index. ETFs can contain investments such as stocks and bonds.| Investopedia
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Standard deviation is a statistic measuring the dispersion of a dataset relative to its mean. It is calculated as the square root of the variance. Learn how it's used.| Investopedia
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A derivative is a securitized contract whose value is dependent upon one or more underlying assets. Its price is determined by fluctuations in that asset.| Investopedia
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Alpha (α) , used in finance as a measure of performance, is the excess return of an investment relative to the return of a benchmark index.| Investopedia