Adapting CAPM to Forex with a Volatility-Based Risk Premium

Summary

The document outlines classical CAPM and proposes a forex indicator that replaces market beta with a risk premium scaled by a currency pair’s historical volatility. It annualizes volatility using a square-root-of-252 factor, combines the resulting premium with a fixed risk-free rate to estimate expected return, and displays both estimates alongside risk categories. The article also describes the indicator’s buffers and volatility calculation in MetaTrader 5.

The author says the estimates rise during volatile market extremes and suggests traders might use them to assess risk, counter-trend opportunities, or unusually strong moves. These claims are presented as observations, without a quantified trading test or performance evidence. The approach departs from CAPM’s market-portfolio risk measure, and the document’s limitations section is truncated; it does mention that a fixed risk-free rate may miss interest-rate changes and points to macroeconomic inputs and adaptive parameters as possible extensions.

Key ideas

• The indicator substitutes volatility-scaled risk premium for CAPM beta in estimating currency-pair returns.
• It annualizes volatility and return estimates to align them with an annual risk-free rate.
• The displayed risk category is based on volatility thresholds.
• The article suggests elevated estimates may help identify volatile extremes, but does not provide quantified strategy results.
• A fixed risk-free rate and the use of volatility as a proxy for systematic risk limit the approach.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.