Index and Overview of My 25 Stories


There is a formula for making smarter predictions

A hand is holding a crystal ball.
Photo by Drew Beamer on Unsplash


To understand bitcoin’s risk as a currency, let’s look at how it compares against 22 other global currencies

Currency photo by John McArthur on Unsplash; bitcoin photo by Executium on Unsplash


And what that can teach you about diversifying your investments

A hand is holding a light bulb
Photo by Diego PH on Unsplash


It isn’t easy to beat the market — if you wanted to try, this may be the best way

A laptop and investing books
Photo by Yiorgos Ntrahas on Unsplash


Joy and relief as “In Pursuit of the Perfect Portfolio” hits bookshelves

Stephen Foerster holding a copy of the book.
Photo by Christopher Foerster


Everything you need to know about abbreviations, initialisms, and acronyms in order to join the club

Image of typeset letters
Photo by Amador Loureiro on Unsplash


Bobby Bonilla was bought out of his baseball contract for what some consider the deal of the century. But is it really?

Photo of bobblehead of New York Mets’ Mike Piazza (former teammate of Bobby Bonilla
Photo of bobblehead of New York Mets’ Mike Piazza (former teammate of Bobby Bonilla) by Josh Appel on Unsplash


An important lesson that correlation does NOT imply causation

Picture of a Ronaldo t-shirt and two Coke bottles
T-shirt photo by Portuguese Gravity on Unsplash; Coke bottles photo by Alessandro D’Antonio on Unsplash


Among today’s investors, there’s a huge misalignment between wishful thinking and evidence-based expected returns

Photo by Bruno Figueiredo on Unsplash

Stephen Foerster

I’m a Finance prof, CFA, and author of In Pursuit of the Perfect Portfolio (with Andrew Lo). I write stories about investing. (I don’t give financial advice.)

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