Stephen Foerster – Medium

Stephen Foerster

12.3K Followers

Featured Book

In Pursuit of the Perfect Portfolio: The Stories, Voices, and Key Insights of the Pioneers Who Shaped the Way We Invest

In Pursuit of the Perfect Portfolio: The Stories, Voices, and Key Insights of the Pioneers Who Shaped the Way We Invest

How the greatest thinkers in finance changed the field and how their wisdom can help investors today.

2021

Andrew W. Lo, et al.

Andrew W. Lo, Stephen R. Foerster

Stories

Pinned

Stephen Foerster

The Perfect Portfolio Investing Blog

Introducing my new blog

12 min readApr 2, 2021

--

1

Book cover: In Pursuit of the Perfect Portfolio

--

1

Stephen Foerster

Is DJT Stock Just a Donald Trump Hot Air Balloon?

DJT isn’t a traditional stock, a meme stock, or cryptocurrency

9 min readApr 9, 2024

--

Illustration of Donald Trump as a hot air balloon

--

Stephen Foerster

How to Spot a Stock Bubble: From Nortel to Nvidia

Measuring implied expected revenue growth is a good test

9 min readMar 5, 2024

--

8

Image of a bubble

--

8

Stephen Foerster

The Super Bowl Indicator: A Lesson on Correlation Versus Causation

Correlation does NOT imply causation

4 min readJan 23, 2024

--

NFL football game

--

Stephen Foerster

In Search of the 60/40 Stock/Bond Asset Allocation Origin — and Why It Matters

The strategy made sense decades ago, and still makes sense today

13 min readOct 10, 2023

--

In Search of the 60/40 Stock/Bond Asset Allocation Origin — and Why It Matters

--

Stephen Foerster

Why Do Good People Invest in Bad Companies? A Robin Hood Redux Explaining Meme Stocks

Meme stocks have pitted heroes against villains over good and bad companies

9 min readAug 7, 2023

--

Why Do Good People Invest in Bad Companies? A Robin Hood Redux Explaining Meme Stocks

--

Stephen Foerster

Generative AI 101: What You Need to Know Before Investing

GenAI basics, investing opportunities and risks, valuation, and lessons from previous tech revolutions

19 min readJul 4, 2023

--

Photo of a robot

--

Stephen Foerster

My Dinner with Harry Markowitz, The Father of Modern Portfolio Theory

The personal side of the man who shaped the investments industry: Harry Markowitz, 1927–2023

11 min readJun 26, 2023

--

2

My Dinner with Harry Markowitz, The Father of Modern Portfolio Theory

--

2

Stephen Foerster

Forget the Debt-Ceiling Crises, the U.S. is Already a Serial Defaulter

Understanding the past highlights the importance of trust in the dollar

7 min readMay 16, 2023

--

5

Picture of dollar bills

--

5

Stephen Foerster

Banking 101: What You Need to Know, and What Causes Bank Runs

Basic banking explained: It’s all about trust

10 min readMar 20, 2023

--

27

Banking 101: What You Need to Know, and What Causes Bank Runs

--

27

Stephen Foerster

Stephen Foerster

12.3K Followers

Book Author

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.)

Following

Help
Status
About
Careers
Blog
Privacy
Terms
Text to speech
Teams