Shownotes
In a world where gut instinct once ruled the day—from football coaches making pivotal fourth-down decisions to investors choosing their next stock pick—a revolution has reshaped the landscape: reliable data and analytics. Drawing inspiration from the principles behind the film Moneyball and a recent article by David Booth on 3 Lessons from Investing’s Moneyball Moment in Fortune magazine, I break down what a century of US stock market history reveals for everyday investors.
Lesson 1. Insiders Aren’t Smarter Than Outsiders
One of the key insights unearthed from this century’s worth of data is simple but profound: experts, or “insiders,” don’t consistently outperform the market. Early research using the University of Chicago’s Center for Research on Security Prices (CRSP) data found that, on average, mutual funds and clever stock pickers failed to beat the simple strategy of buying and holding a diversified market portfolio.
This led to the explosion of index funds, notably pioneered by Vanguard and enabled by firms like Dimensional. Now, anyone, not just Wall Street professionals, can own broad, low-cost portfolios and harness the long-term growth of the entire market rather than trying (and in most cases, failing) to outsmart it.
Lesson 2. Bet on Human Ingenuity
Human creativity and progress power the market’s reliable returns over the decades. Companies go public to raise money, which they funnel into improving their products and expanding their reach. Every day, millions of people at thousands of companies are seeking better ways to serve their customers and grow profits.
When you invest in the stock market, you’re ultimately betting on people’s ability to innovate and adapt to a changing world. This century-long experiment in collective growth has consistently delivered average returns of around 10% per year, a number that’s survived wars, recessions, inflation spikes, and bubbles.
Lesson 3. Investor Behavior Is Key
If reams of data tell us anything, it’s this: reliable, long-term returns belong to disciplined investors. The journey is never smooth—market downturns feel chaotic and alarming in the moment. Yet, $1,000 invested in 1926 would have grown to over $17 million by 2025, despite wars, crashes, and global crises.
Most investors who stuck with the market over any 10- or 20-year span came out ahead. Stay disciplined, trust the data, and know that while the challenges may look different, the power of long-term, patient investing is timeless.
Outline of This Episode
- [00:00] 100 years of market insights
- [03:14] Football transformed by data analytics
- [07:32] Moneyball, markets, and data
- [11:06] Insiders vs. outsiders on stocks
- [16:17] Human ingenuity in investing
- [17:26] Investing discipline drives long-term success
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Podcast Disclaimer:
The Best In Wealth Podcast is hosted by Scott Wellens. Scott Wellens is the principal at Fortress Planning Group. Fortress Planning Group is a registered investment advisory firm regulated by the US Securities and Exchange Commission in accordance and compliance with securities laws and regulations. Fortress Planning Group does not render or offer to render personalized investment or tax advice through the Best In Wealth Podcast. The information provided is for informational purposes only and does not constitute financial, tax, investment or legal advice.
