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  2. Triangular arbitrage - Wikipedia

    en.wikipedia.org/wiki/Triangular_arbitrage

    Triangular arbitrage opportunities may only exist when a bank's quoted exchange rate is not equal to the market's implicit cross exchange rate. The following equation represents the calculation of an implicit cross exchange rate, the exchange rate one would expect in the market as implied from the ratio of two currencies other than the base currency.

  3. MetaTrader 4 - Wikipedia

    en.wikipedia.org/wiki/MetaTrader_4

    MetaTrader 4. MetaTrader 4, also known as MT4, is an electronic trading platform widely used by online retail foreign exchange speculative traders. It was developed by MetaQuotes Software and released in 2005. The software is licensed to foreign exchange brokers who provide the software to their clients. The software consists of both a client ...

  4. Pearson correlation coefficient - Wikipedia

    en.wikipedia.org/wiki/Pearson_correlation...

    Pearson's correlation coefficient is the covariance of the two variables divided by the product of their standard deviations. The form of the definition involves a "product moment", that is, the mean (the first moment about the origin) of the product of the mean-adjusted random variables; hence the modifier product-moment in the name.

  5. Correlation trading - Wikipedia

    en.wikipedia.org/wiki/Correlation_trading

    Correlation trading. In finance, correlation trading is a strategy in which the investor gets exposure to the average correlation of an index. The key to correlation trading is being able to predict when future realized correlation amongst the stocks of a particular index will be greater or less than the "implied" correlation level derived from ...

  6. Correlation - Wikipedia

    en.wikipedia.org/wiki/Correlation

    The correlation reflects the noisiness and direction of a linear relationship (top row), but not the slope of that relationship (middle), nor many aspects of nonlinear relationships (bottom). N.B.: the figure in the center has a slope of 0 but in that case, the correlation coefficient is undefined because the variance of Y is zero.

  7. Sample matrix inversion - Wikipedia

    en.wikipedia.org/wiki/Sample_matrix_inversion

    Sample matrix inversion (or direct matrix inversion) is an algorithm that estimates weights of an array ( adaptive filter) by replacing the correlation matrix with its estimate. Using -dimensional samples , an unbiased estimate of , the correlation matrix of the array signals, may be obtained by means of a simple averaging scheme:

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