Predicting Long-Term Stock Return Volatility: Implications for Accounting and Valuations of Equity Derivatives.

Key Points

• The study aims to predict long-term stock return volatility to improve accounting and valuation processes for equity derivatives.
• Analyzed historical volatility to forecast five-year monthly volatility
• Used data from comparable firms to enhance predictions
• Developed a shrinkage forecast by adjusting historical forecasts towards a comparable firms' forecast.
• Established a reliable method for predicting long-term stock return volatility
• Demonstrated the effectiveness of using comparable firms in enhancing accuracy
• Identified the significance of historical data in forecasting future volatility.