Tag
#correlation
2 articles
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Correlation Matrix in Portfolios: How to Read One, and Why Correlations Rise in a Crisis
A correlation matrix shows how closely each pair of holdings moves together. Reading one well means watching the pairs, the period, and how correlations behave under stress.
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Diversification: How Many Stocks Does a Portfolio Need?
Diversification research shows stock-specific risk falls sharply with the first several holdings and slowly after that, but the count alone never determines how diversified a portfolio is.
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