Alpha Decay

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MicroAlpha Files: Why Short-Lived Alpha Dies Faster Than You Think

MicroAlpha Files: Why Short-Lived Alpha Dies Faster Than You Think MicroAlpha Is the Alpha You Don’t Get to Keep In high-frequency trading, discovering an alpha signal is only the beginning. The real battle starts after the signal is discovered. A model may predict the next price movement with statistical significance. A machine-learning model may identify […]

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Expect Alpha Decay: Why Every Trading Edge Is Temporary in Modern Markets

Expect Alpha Decay: Why Every Trading Edge Is Temporary in Modern Markets Introduction – The Brutal Truth About Trading Edges Retail traders often search for the perfect strategy. Professional traders search for something fundamentally different: a temporary advantage that can be exploited before it disappears. In modern electronic markets, every profitable idea becomes a signal […]

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