Quantitative Investing

The Minimum Correlation Algorithm: Rethinking Portfolio Diversification Through Mathematical Elegance

“Don’t put all your eggs in one basket” – this timeless wisdom has evolved into one of finance’s most fundamental principles. Yet despite diversification’s universal acceptance, its mathematical underpinnings remain poorly understood by most practitioners. The conventional approach treats diversification as simply holding many assets, but this perspective misses the profound mathematical reality that drives risk reduction in portfolios.

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The Efficient Frontier is a Beautiful Lie: Why 'Optimal' Portfolios Fail in Real Markets

If you’ve ever opened up an investing textbook, you’ve seen the chart. A smooth, upward-curving line — the efficient frontier — showing a perfect relationship between risk and return. All you need to do is plug in your estimates for expected returns, volatilities, and correlations, and voilà: the optimal portfolio is right there in front of you.

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The Truth About Beating the S&P 500: What 8 Years of Real Trading Taught Me

I’ve heard this phrase countless times from financial advisors, academic researchers, and fellow investors. The conventional wisdom is clear: 90% of professional fund managers fail to outperform the S&P 500 over ten years, so why should individual investors even try?

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