Investing Research Articles

What are the implications of stock trading volume spikes for near-term returns? In their February 2025 paper entitled “Volume Shocks and Overnight Returns”, Álvaro Cartea, Mihai Cucuringu, Qi Jin and Mungo Wilson study the effects of stock trading volume shocks during normal trading hours on subsequent overnight and next-day returns. For each stock each day,… Keep Reading

Can investors exploit the definition of conventional 12-2 stock momentum (long the tenth, or decile, of stocks with the highest returns from 12 months ago to two months ago and short the decile with the lowest) to form more persistent momentum portfolios? In the April 2025 revision of their paper entitled “Momentum at Long Holding… Keep Reading

Do individual investors trade carefully and cautiously, or do they make snap judgments? In their March 2025 paper entitled “The Research Behavior of Individual Investors”, Toomas Laarits and Jeffrey Wurgler employ browser histories for an approximately representative sample of U.S. individual investors to address: How much time do they spend on stock research? Which sites… Keep Reading

What is the state of formal research on cryptocurrency investment strategies? In his April 2025 paper entitled “Quantitative Alpha in Crypto Markets: A Systematic Review of Factor Models, Arbitrage Strategies, and Machine Learning Applications”, William Mann synthesizes over two dozen peer-reviewed studies on systematic cryptocurrency trading strategies spanning 2018-2025. He categorizes studies as: Arbitrage and… Keep Reading

Below is a weekly summary of our research findings for 5/5/25 through 5/9/25. These summaries give you a quick snapshot of our content the past week so that you can quickly decide what’s relevant to your investing needs. Subscribers: To receive these weekly digests via email, click here to sign up for our mailing list.

Should those aiming to exploit machine learning for portfolio construction focus model training on the broad market or specific industries? In their April 2025 paper entitled “Do Machine Learning Models Need to Be Sector Experts?”, Matthias Hanauer, Amar Soebhag, Marc Stam and Tobias Hoogteijling examine return predictability using several machine learning (ML) models trained on… Keep Reading

“What Kind of Asset Is Bitcoin?” assesses relationships between of the Grayscale Bitcoin Trust ETF (GBTC) as a proxy for bitcoin holdings and each of 35 exchange-traded products based on daily and monthly return correlations. How are such relationships evolving? To investigate, we calculate daily and monthly return correlations between bitcoin and each of the… Keep Reading

Does the evolution of empirical asset pricing point inevitably to machine learning methods? In his February 2025 paper entitled “From Econometrics to Machine Learning: Transforming Empirical Asset Pricing”, Chuan Shi summarizes the transition from traditional methods to machine learning in empirical asset pricing. He traces the historical development of traditional asset pricing models and their… Keep Reading

“U.S. Stock Market Death Crosses and Golden Crosses” employs long samples to examine behaviors of the Dow Jones Industrial Average and the S&P 500 Index after death crosses and golden crosses, respectively the 50-day simple moving average crossing below and above the 200-day simple moving average. How do the more recent and easily tradable behaviors… Keep Reading

A subscriber suggested looking at the S&P 500 price-to-sales ratio (P/S) as an indicator for timing the U.S. stock market. To investigate, we relate P/S and change in P/S to S&P 500 Index (SP500) quarterly returns, as follows: Conduct lead-lag analyses for quarterly P/S versus quarterly SP500 returns, and for quarterly change in P/S versus… Keep Reading