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Investing Research Articles

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Weekly Summary of Research Findings: 5/5/25 – 5/9/25

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...

Industry Expert Versus Generalist Financial AIs

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?”,...

Recent Bitcoin Return Correlations with Various ETFs

“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....

Evolution of Asset Pricing Approaches

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...

SPY After Death and Golden Crosses

“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...

S&P 500 Price-to-Sales Ratio and Stock Market Returns

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...

Weekly Summary of Research Findings: 4/28/25 – 5/2/25

Below is a weekly summary of our research findings for 4/28/25 through 5/2/25. These summaries give you a quick snapshot of our content the past week so that you can quickly decide what’s relevant to...

Distilling Social Media to Trade the Stock Market

Can aggregate, distilled daily stock sentiment and attention, as extracted from financial social media, usefully predict U.S. stock market returns? In their March 2025 paper entitled “Market Signals from Social Media”, Anthony Cookson, Runjing Lu,...

VVIX/VIX as a Return Indicator?

Is the ratio of implied volatility of implied volatility (CBOE VVIX Index), interpretable as a measure of changes in investor fear level, to the CBOE VIX Index itself a useful indicator of future stock market...

VVIX as a Return Indicator?

Is the implied volatility of implied volatility (CBOE VVIX Index), interpretable as a measure of changes in investor fear level, a useful indicator of future stock market returns? To investigate, we relate monthly VVIX and...

Dump Alternative Investments?

Do alternative investments (real estate, venture capital, private equity, hedge funds, private credit, infrastructure and energy investments) offer attractive returns and diversification, buffering investors from the vagaries of the stock market? In his March 2025...

Do Tail Risk ETFs Work?

What are the costs of mitigating tail risk via exchange-traded funds (ETF) designed to manage it? To investigate, we consider seven such ETFs, three dead and four live, as follows: VelocityShares Tail Risk Hedged Large...

Weekly Summary of Research Findings: 4/21/25 – 4/25/25

Below is a weekly summary of our research findings for 4/21/25 through 4/25/25. These summaries give you a quick snapshot of our content the past week so that you can quickly decide what’s relevant to...

Alternative Proxy for Small Stocks in Measuring the Size Effect

In response to “Measuring the Size Effect with Capitalization-based ETFs” and in view of the research summarized in “Quality-enhanced Size Effect”, a subscriber suggested using either iShares Core S&P Small-Cap ETF (IJR) or Vanguard S&P...

SLV vs. GLD

How are behaviors of gold and silver exchange-traded funds (ETF) similar and different? To investigate, we compare behaviors of iShares Silver Trust (SLV) and SPDR Gold Shares (GLD) using daily and monthly return frequencies. We...

Measuring the Value Premium with Value and Growth ETFs

Do popular style-based exchange-traded funds (ETF) offer a reliable way to exploit the value premium? To investigate, we compare differences in returns (value-minus-growth) for each of the following three matched pairs of value-growth ETFs: iShares...

AIs Changing Markets?

Is the ability of artificial intelligence (AI) platforms such as ChatGPT to summarize and interpret large volumes of financial data altering investor trading behaviors and thereby changing financial markets? In the April 2025 revision of...

How Are Private Equity ETFs Doing?

Do exchange-traded funds (ETF) designed to make private equity available to individual investors beat the market? To investigate, we consider five ETFs, as follows: Invesco Global Listed Private Equity ETF (PSP) – invests in 40...

Weekly Summary of Research Findings: 4/14/25 – 4/17/25

Below is a weekly summary of our research findings for 4/14/25 through 4/17/25. These summaries give you a quick snapshot of our content the past week so that you can quickly decide what’s relevant to...

Substitute QQQ for SPY in SACEVS and SACEMS?

Subscribers asked whether substituting Invesco QQQ Trust (QQQ) for SPDR S&P 500 (SPY) in the Simple Asset Class ETF Value Strategy (SACEVS) and the Simple Asset Class ETF Momentum Strategy (SACEMS) improves outcomes. To investigate,...

Intricately Filtered Factor Portfolios

The performance of conventional factor portfolios, long and short extreme quantiles of assets sorted on the factor metric, faces considerable skepticism (see “Compendium of Live ETF Factor/Niche Premium Capture Tests”). Is their some more surgical...

How Are Sentiment-driven ETFs Doing?

Do exchange-traded funds (ETF) designed to exploit sentiment indicators beat the market? To investigate, we consider three such ETFs, all currently available, as follows: VanEck Social Sentiment ETF (BUZZ) – invests in common stocks of...

Stock Returns Around Easter

Does the seasonal shift marked by the Easter holiday, with the U.S. stock market closed on the preceding Good Friday, produce anomalous returns? To investigate, we analyze the historical behavior of the S&P 500 Index...

Weekly Summary of Research Findings: 4/7/25 – 4/11/25

Below is a weekly summary of our research findings for 4/7/25 through 4/11/25. These summaries give you a quick snapshot of our content the past week so that you can quickly decide what’s relevant to...

Bitcoin Investment and Price Dynamics

What is the state of bitcoin exchange-traded products (ETP)? In the March 2025 update of his brief paper entitled “One Year of Bitcoin Spot ETPs: A Brief Market and Fund Flow Analysis”, Nico Oefele analyzes...