Beta
Stock volatility relative to the market
What is Beta?
Beta A measure of a stock's volatility relative to the overall market (typically the S&P 500). A beta of 1.0 means the stock moves with the market. Beta above 1.0 indicates higher volatility; below 1.0 indicates lower volatility. High-beta stocks typically have higher implied volatility and more expensive options.
Complete Definition
A measure of a stock's volatility relative to the overall market (typically the S&P 500). A beta of 1.0 means the stock moves with the market. Beta above 1.0 indicates higher volatility; below 1.0 indicates lower volatility. High-beta stocks typically have higher implied volatility and more expensive options.
Example
A stock with beta 1.5 tends to move 1.5% for every 1% market move, resulting in more expensive options premiums.
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