Morgan Stanley Introduces Equity Vulnerability Score to Help Investors Manage Single Stock Risk

Strategic Insights -

Morgan Stanley Wealth Management has launched the Equity Vulnerability Score, a proprietary tool to help clients and financial advisors measure and rank the susceptibility of US stocks to potential future drops in value. This risk management tool is particularly useful for investors holding concentrated equity positions, which can expose them to underperformance, higher volatility, and material drawdowns. According to Morgan Stanley's Global Investment Office, among the individual stocks in the Russell 1000 Index, volatility and drawdowns have been significantly higher than the index itself since 2014.

Key Takeaways:

  • The Equity Vulnerability Score is a proprietary tool developed by Morgan Stanley Wealth Management's Global Investment Office to measure and rank the susceptibility of US stocks to potential future drops in value.
  • The tool focuses on three main categories: Financial Stability, Fundamental Momentum, and Volatility and Tail Risk, using indicators such as earnings, revenue, profitability, and trading activity.
  • Historically, individual stocks in the Russell 1000 Index have been more than twice as volatile as the index itself (37% v. 15%) since 2014.
  • The average stock's maximum drawdown was twice as large as the index's (approximately 50% vs. 25%).
  • Most individual stocks tend to underperform the index on any forward-looking basis, with the median underperformance clocking in at -2.6% per year.
  • Morgan Stanley's Equity Vulnerability Score can help flag the likelihood that a stock may soon drop in value and complement the firm's existing Tactical Equity Framework.
  • The tool is particularly useful for investors holding concentrated equity positions, which can expose them to underperformance, higher volatility, and material drawdowns.
  • Steve Edwards, Senior Investment Strategist, Morgan Stanley Wealth Management, stated that the Equity Vulnerability Score "puts another arrow in our quiver" to help address the challenge of concentrated equity positions.
  • The tool will help provide important insights for investors, especially those who hold five or fewer stocks making up more than 30% of the risk in a portfolio.

Statistics:

  • Among the individual stocks in the Russell 1000 Index, volatility and drawdowns have been significantly higher than the index itself since 2014 (37% v. 15%).
  • The average stock's maximum drawdown was twice as large as the index's (approximately 50% vs. 25%).
  • Most individual stocks tend to underperform the index on any forward-looking basis, with the median underperformance clocking in at -2.6% per year.

Sources:

  • Morgan Stanley Global Investment Committee Special Report: Confronting the Concentrated Equity Challenge and Measuring Drawdown Vulnerability
  • FactSet's Quant Factor Library (QFL) dataset
  • Morgan Stanley's Equity Vulnerability Score press release