Beta
A measure of a stock's volatility relative to the overall market, where a beta of 1.0 means the stock moves in line with the market.
Explained Simply
Beta quantifies how much a stock's price tends to move relative to a benchmark like the S&P 500. A beta of 1.5 means the stock historically moves 50% more than the market — if the S&P 500 rises 1%, the stock tends to rise 1.5%. A beta of 0.5 means it moves half as much. Negative beta (rare) means the stock tends to move opposite to the market. High-beta stocks (tech, biotech, growth stocks) offer more upside potential but also more downside risk. Low-beta stocks (utilities, consumer staples) are more stable but offer less growth. Beta is calculated using regression analysis of historical returns, typically over 2-5 years.
How Tradewink Uses Beta
Tradewink uses beta in its PositionSizer to adjust position sizes based on a stock's volatility relative to the market — high-beta stocks receive smaller positions to normalize risk across the portfolio. The MarketRegimeDetector also incorporates beta when analyzing how individual stocks respond to broad market regime changes. The PortfolioRiskAnalyzer tracks the portfolio's weighted-average beta to ensure overall market exposure stays within the user's risk tolerance.
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See Beta in action
Tradewink uses beta as part of its AI trading signal pipeline. Start getting signals that use this concept to find real opportunities.