Category: RISK MANAGEMENT

Predicting Covariance Matrices of Returns

Covariance plays an important role in portfolio construction as it measures the relationship between the returns of different assets in a portfolio. Understanding covariance helps investors to diversify their investments effectively by selecting assets that are not highly correlated with each other. Covariance also allows investors to assess the impact …

When Are Stop Losses Effective?

A stop loss serves as a risk management tool, helping investors limit potential losses by automatically triggering the sale of a security when its price reaches a predetermined level. This level is set below the purchase price for long positions and above the purchase price for short positions. By implementing …

Forecasting Short-Term Stock-Bond Correlation

Stock-bond correlation is a critical factor in portfolio diversification, influencing how different asset classes interact during market movements. The correlation between stocks and bonds helps investors understand the degree to which these two assets move in relation to each other. In the years of 2010s, stocks and bonds have had …

Can Trading Volume Predict Realized Volatility?

Realized volatility (RV) is a measure that captures the degree of price fluctuation in a financial instrument over a specific period. This metric is valuable for investors and traders as it reflects the true price action experienced by an asset, aiding in risk assessment and strategy development. Realized volatility contrasts …

Does Kelly Portfolio Outperform the Market?

Position sizing is a critical element in effective portfolio management, playing a pivotal role in determining the overall risk and return characteristics of an investment portfolio. Proper position sizing involves allocating an appropriate proportion of capital to each investment, considering factors such as the investor’s risk tolerance, investment goals, and …

Improved Martingale Betting System- Does It Work?

The martingale betting system is a popular gambling strategy that involves doubling one’s wager after each loss in the pursuit of recovering previous losses and securing a profit equal to the original bet. The underlying idea is that, statistically, a win will eventually occur, allowing the player to recoup losses …