What are the research questions? Is there a relationship between short selling activity and insider selling? What is the impact of short selling trading strategies that are conditioned on insider trading signals? Does the price impact of short selling subsume that of insider trading? Is the price

Consider a market-timing strategy which supposedly predicts the direction of the stock market trend. Such a strategy generates Buy and Sell signals. A Buy signal is the signal to buy stocks, whereas a Sell signal is the signal to sell. Simple enough, but how does one evaluate the forecast accuracy

As the chief research officer for Buckingham Strategic Wealth and The BAM Alliance, I’m often asked, after any asset class or factor experiences a period of poor performance, if the historical outperformance of stocks with that characteristic has disappeared because the premium has become well

There is a substantial debate on the topic of factor investing and whether or not the “backtested” excess returns are actually achievable in practice. Much of the research on the topic suggests that practitioners in the field are unable to capture any of the so-called “factor premiums”. For

R is a programming language that owes it’s lineage to S, a language designed in it’s own developers words, “to turn ideas into software, quickly and faithfully.”(1) Shiny is an “interactive web technology” that makes it easy to take R models and publish them to the web. Jonathan L.

What are the research questions? What is the relationship between turnover and returns from a low volatility portfolio that integrates value and momentum exposures with low volatility? Does the relationship change if a only one factor is integrated with a low volatility strategy? Note: This is a

There are different investment approaches to identify sector winners and losers, such as price momentum strategies, top down approach based on specific macroeconomic indicators or bottom-up approaches to identify sectors with improving fundamentals. One widely used approach is business cycle

According to psychology literature, mood increases from Thursday to Friday and decreases on Monday. In general, people tend to evaluate future prospects more optimistically when they are in a good mood than when they are in a bad mood. In equity markets, the presence of optimism or pessimism that is

My last article used Warren Buffett’s pre-crisis sale of put options to highlight the risk of getting over our financial skis. In both temperament and negotiation, Warren can outlast most bear markets. Many of us cannot. Proponents of rebalancing should acknowledge the real risk that downturns can

Low volatility strategies have garnered a fair amount of popularity and a growing body of supporting research. Studies have shown risk reduction levels of 25%, while turnover has varied from 20% to 120%. However, higher turnover produces higher costs of trading, such that the excess return obtained

Everyone in finance remembers 2008–the Global Financial Crisis. Yes, I know, the final downward movement in the stock market was in early 2009. However, many remember 2008 as the year of the crisis. So now we are 10 years removed from the crisis. Why do I mention this? After the crisis, some began

One of the oldest and most persuasive arguments in the stock market is that small stocks outperform large stocks.(1) Warren Buffett, speaking at the 2013 Berkshire Hathaway Annual Meeting, summarized the sentiment when discussing the disadvantages of managing a huge amount of capital: There’s no

What are the research questions? The main purpose of this study was to examine the changes in the distribution of the US equity risk premium as the return horizon varies over the short term, medium and long term (see here for a piece that covers those topics). In this recap, we look at ancillary

We have all heard the mantra, “You can’t time the market!” But in reality, investors attempt to do just that every day as part of their tactical asset allocation strategies, which are less extreme variants of the classic trend-following “risk-on/risk-off” approach, which many associate

What are the Research Questions? The authors investigate the asset pricing implications of corporate manager sentiment, focusing on its predictability for future U.S. stock market returns. Specifically, they ask the following research questions: Does high corporate manager sentiment lead to

What are the research questions? China represents the world’s second largest stock market and a growing component of the world’s GDP. China also operates under peculiar political and economic environments relative to the market economies of the Western world. Because China is so unique, a

In a recent ETF column, Allan Roth listed five investment lessons. While I agreed with much of what he wrote, one claim—factor investing has “failed miserably”— called for examination of the facts. But first, a little background. William Sharpe, Jack Treynor and John Linter are typically

There is a 72% probability of the San Franciso Bay Area getting hit by at least one earthquake of a magnitude of 6.7 or stronger between today and 2043 according to the United States Geological Survey, which is a scientific agency of the U.S. government. An earthquake of that magnitude is likely to

In today’s video, we examine three posts. First, we examine ESOPs and 1042 QRP (qualified replacement property) with Doug Pugliese. Second, we examine a guest post by Nicolas Rabener examining Value, Momentum and Carry over the past 10 years. Last, we examine a guest post by Elisabetta discussing

Rankings are everywhere in the finance industry. A number of papers identify bonus schemes and tournament incentives(1) among the main drivers of excessive risk-taking in developed financial markets. The article studies the impact of rankings on professionals’ risk-taking investment decisions.

The October 2018 market correction where the S&P 500® Index fell by 7%, its worst October since 2008,(1) left investors searching for a culprit. Some of the usual suspects were blamed — rising geopolitical tensions ahead of the US midterms, the high likelihood of a slowdown in economic and

Welcome to the newly re-titled weekly video, Compound Your Knowledge. In today’s video, we examine three posts. First, we examine a simple analysis of 2018 Factor portfolio returns. Second, we examine a guest post by Jon Seed examining Warren’s put options, and how they are different than most

We’ve posted our quarterly attribution materials on our performance site.(1) We enjoyed putting the materials together and think they will be informative for those who follow our Indexes. The materials and videos are part of our long-term plan is to continually improve our quarterly communications

The purpose of this study was to examine the changes in the distribution of the US equity risk premium as the return horizon varies from monthly, annually, 3 year, 5 year, 10 year, 20 and 30 year periods. The equity premium was calculated as the monthly difference between the Market and Treasury

Unless you are a die-hard buy-and-hold investor, chances are that you need to rebalance your portfolio at some point. The question is when? And how often? And why at a specific time? Some strategies rebalance once a year, some multiple times a day. What if there were better times to rebalance? Last

What are the Research Questions? Can investors identify skilled and unskilled mutual fund managers by observing their tendency to herd? Do differences in herding behavior across funds predict mutual fund performance? Does skill drives the link between herding and future performance? Does herding

As the year turns, a common practice is to assess a portfolio and see how each position performed. The summary for stocks is easy: equities did not do well. Whether you were invested in U.S. stocks (down ~5%+), developed markets (down ~13%+), or emerging markets (down ~20%+), being invested in

Each time S&P Dow Jones Indices publishes its latest Active Versus Passive Scorecard, the persistent failure of the vast majority of actively managed funds to outperform is highlighted. The evidence on this failure led Charles Ellis to call active management the loser’s game — while it’s

In the last post in our machine learning series, we showed how nonlinear regression algos might improve regression forecasting relative to plain vanilla linear regression (i.e., when underlying reality is nonlinear with complex interactions). In this piece, we’ll first review machine learning for

What are the Research Questions? This editorial introduces data science to the wider investment community and highlights some of the advantages (and potential pitfalls as discussed yesterday) it can bring to everyday investment practice. The paper answers two apparently simple questions: What is

What are the Research Questions? Data mining in finance has long been a concern for academic researchers. Campbell Harvey, one of the authors on this paper, is leading the effort to ensure the integrity of empirical finance research. For example, see here for a post on his address to the AFA. The

This week Ryan and I discuss two posts. First, we examine a guest post by Matthew Bartolini of State Street Global Advisors, discussing the underperformance of Value and its outlook for 2019. Second, we examine a guest post by Elisabetta on a recent JPM paper examining the effects that ETFs have had

Borne in academia and raised by fund managers seeking to outperform, value style mutual funds and ETFs today hold close to $2 trillion(1). But with poor returns over the past decade, the question of whether “value is dead” has become a popular topic of conversation.(2) The search term “is

What are the Research Questions? The paper investigates the following research question: Have ETFs flows affected the correlation structure of returns? Have ETFs flows affected the liquidity of underlying securities? Have ETFs flows affected the ability of managers to generate alpha? What are the

Trend following is well-known and the simplest version is as follows: you buy an asset when it has positive momentum (the price goes up) and you sell it and go to cash (or any other safe haven) when the momentum turns negative.(1) The best-known example of trend following is on the monthly ETF SPY

You can watch the video via the link below: This week Ryan and I discuss three posts. First, we examine a guest post titled, “Trend Following on Steroids,” which examines ways to enhance a simple trend-following strategy. Second, we examine a post I wrote regarding how to use trend-following

A question we have been receiving recently is the following: How should I use trend following within a portfolio? Generally, the questions are related to our Global Value, Momentum, and Trend Index, which allocates to the (1) Value, (2) Momentum, and (3) Trend factors. A big difference between the

What are the research questions? USES: Can investors really separate “alpha” from “beta”? What are the ins-and-outs of understanding the exposures in a portfolio and their contribution to “alpha”? ABUSES: Are there differences in the way strategies are constructed in academic articles

What are the Research Questions? The authors propose an estimation of the capital stock that involves all identifiable and measurable financial and nonfinancial assets in the world economy. This portfolio seeks to represent the so-called “Global Market Portfolio,” that all MBA students learn to

Who are the buyers and sellers of volatility-contingent strategies? How extensive is volatility trading and put selling currently? Could a volatility “cascade” cause a crash across correlated asset classes? Are there mechanisms that might provide stabilization? What are the Academic Insights?

This week Ryan and I discuss three topics. First, we examine the returns to U.S. stock broken down by (1) size and (2) factors (mega-cap stocks were the place to invest over the last 5 years!). Second, we examine a post by Adam Tkaczuk on Opportunity Zones–a must read for those with low basis

The “stock market,” at least as measured via the S&P 500, has been on an epic performance run — especially relative to almost all asset classes. It doesn’t matter whether you look at the other asset classes by geography (e.g., US, developed, emerging), style (e.g., value, momentum), or

What are the research questions? Do hedge funds exploit stock mispricing? Specifically, do hedge funds tend to hold undervalued stocks that exhibit positive alphas? Do hedge funds profit from these holdings in undervalued stocks? Does the trading in these stock reduce mispricing? What are the

The article addresses the estimation of capacity for an equity fund that forms portfolios based on a given investment strategy. It fits within three strands of literature: i) theoretical models of optimal trading or portfolio construction under alpha erosion and trade frictions; ii) empirical

This week Ryan and I discuss two topics. First, we discuss a paper examining the performance of bank affiliated mutual funds. Second, we examine a post by Larry Swedroe on diversification. Paper Links: Do Bank Affiliated Funds Underperform Affiliated Funds? Asset Diversification in a Flat World.

Diversification is a fundamental principle of prudent investing due to its ability to mitigate/minimize risks. In fact, it has been called the only free lunch in investing because, done properly, it can reduce risk without reducing expected returns. This led to the conclusion that investors should

You can watch the video via the link below: This week Ryan and Jack discuss several important topics. First, they discuss the tracking error associated with trend-following strategies. Second, they chat about a paper by researchers from Goldman Sachs, “Constructing Long-Only Multifactor

A question I’ve received in the past is the following: If you could go back in time five years ago and tell yourself something about investing, what would it be? My response is the following: Tracking error. First, what is tracking error?(1) Tracking error is a measure of how much a strategy

The heightened interest in factor investing has been accompanied by a corresponding focus on the nuts and bolts of constructing multifactor portfolios. There are essentially two ways to go: In a one-step process, single factor signals are blended into a composite signal and one multifactor portfolio

This week Ryan and I have a discussion on three topics. First, we discuss ETF tax efficiency based on the findings in a new paper by the RAFI team. Second, we discuss the profitability factor as Larry Swedroe highlights a new paper on international evidence. Third, we discuss my article on how one