Analyzing three current momentum plays: Amazon, Walmart, and Progressive

While many firms have suffered greatly during COVID-19, there are some that Mr. Market thinks are emerging unscathed and even look better than before. This is an interesting time to be betting on momentum, not least because most of the market is just recovering from major declines. In this post, I analyze three possible momentum … Continue reading Analyzing three current momentum plays: Amazon, Walmart, and Progressive

Do stock valuations matter anymore?

Historically, stock valuations have been an important predictive factor of future returns. A standard practice is to measure value by comparing stock prices to fundamental measures such as trailing earnings, projected earnings, dividends, and book value. I am increasingly questioning the usefulness of these measures however. While an enormous body of research has shown that … Continue reading Do stock valuations matter anymore?

Does COVID-19 change the rules of personal finance?

While experts have been warning about the potential for global pandemics for years, the emergence and spread of COVID-19 has been an enormous shock to societal systems. Along with the risk to life and health, many families have have been thrown into economic turmoil. In a world with the potential for social and economic shocks … Continue reading Does COVID-19 change the rules of personal finance?

Building ‘real options’ in financial planning

In finance, the term "real option" refers to having the ability to make an economically-valuable choice (see here for quantitative explanation). There is considerable literature on real options in many areas of finance, but I have yet to see a discussion of how this concept applies to personal finance. I have come to believe that … Continue reading Building ‘real options’ in financial planning

Understanding spatial variability in longevity

One of the notable findings from analysis of longevity data is extreme spatial heterogeneity. Looking at variations in life expectancy at small scales is startling (see map below). As the linked article notes, there are two census tracts that are less than ten miles apart in Washington DC yet have average life expectancy differing by … Continue reading Understanding spatial variability in longevity

Trend analysis for the S&P 500 and NASDAQ 100 in February 2020

Trend following in stock and index prices has a long and well-established history. I reviewed some of the background in a past article on this topic. For additional examples see this article. As explained in these pieces, trend following is all about separating the low-frequency persistent part of price variability from the high-frequency part, which … Continue reading Trend analysis for the S&P 500 and NASDAQ 100 in February 2020