An investment portfolio can be constructed by using momentum, minimum-variance, or mean-variance approaches. It involves combining assets in a way that optimizes risk and return. Each approach offers its own trade-offs: momentum strategies may suffer during market reversals, while minimum-variance portfolios may underperform in strongly trending markets. Meanwhile, mean-variance portfolios …

Portfolio optimization is an important aspect of investment management, aiming to construct portfolios that offer the best risk-return trade-off based on an investor’s objectives and constraints. Various optimization techniques, such as mean-variance optimization, Black-Litterman model, and risk parity, are employed to generate optimal portfolios tailored to different investment goals and …

The low volatility anomaly in the stock market refers to the phenomenon where stocks with lower volatility tend to provide higher risk-adjusted returns compared to their higher volatility counterparts, contrary to traditional financial theories. Various explanations have been proposed for this anomaly, including investor behavioral biases, such as overestimating the …

Volatility clustering is a phenomenon observed in financial markets where periods of high volatility tend to cluster together, followed by periods of low volatility. This pattern suggests that extreme price movements are not randomly distributed over time but rather occur in clusters or groups. Volatility clustering has undergone extensive study …

A serious problem when designing a trading system is the overfitting phenomenon, wherein the system is excessively tuned to historical data. Overfitting occurs when a trading strategy performs exceptionally well on past data but fails to generalize to new, unseen data. This can lead to false positives and inflated expectations, …

Leveraged ETFs, or exchange-traded funds, are investment funds designed to amplify the returns of an underlying index or asset class through the use of financial derivatives and debt. These ETFs aim to achieve returns that are a multiple of the performance of the index they track, typically two or three …

A correction in the equity market refers to a downward movement in stock prices after a sustained period of growth. Market corrections can be triggered by various factors such as economic indicators, changes in investor sentiment, or geopolitical events. During a correction, stock prices may decline by a certain percentage …

Market ecology refers to the complex interplay and dynamics among various participants, assets, and factors within financial markets. Just like in natural ecosystems, different entities in the market interact with each other, creating a delicate balance that can affect asset prices, trading volumes, and market volatility. Market ecology theory views …

The lead-lag relationship between stocks refers to the phenomenon where the movement of one stock precedes or lags behind the movement of another stock. This relationship is often analyzed in the context of stock returns and can provide valuable insights into market dynamics and investor behavior. For instance, if Stock …

In a previous post, we discussed a theoretical model for studying the effectiveness of stop losses. In this post, we will present an empirical study of their efficacy in the commodity market. Reference examined how fixed and trailing stop losses perform in this market. The authors pointed out, This …