The mysteries of Benjamin Graham and Louis Rukeyser

The Power of a Stock Basket: Lessons from Graham, Templeton, and My Personal Journey


The ultimate lesson of portfolio diversification is simple: when you invest in a basket of high-quality stocks, it doesn’t matter if one or two go under. As long as a few of your picks skyrocket—the way NVIDIA did for me—the winners will massively overshadow the losers.

This philosophy has guided my investing journey for decades. Looking back at an email I sent in July 2018, I reflected on my typical stock picks and a core document that shaped my career: "The Investment Owner's Contract."

Living by the "Investment Owner's Contract"

From January 2006 until I retired in June 2012, I dedicated my portfolio to a core group of companies: Google, Amazon, eBay, Adobe, and Apple, later adding Netflix and Tesla.

For years, I believed "The Investment Owner's Contract" was tied to Warren Buffett's philosophy. However, while helping a fellow leader in my son's Boy Scout troop, I decided to track down its precise origin.

My research led me straight to Buffett's mentor, Benjamin Graham (1894–1976), the pioneer of value investing. When Buffett read Graham’s groundbreaking 1949 book, The Intelligent Investor, it completely transformed his life. Graham and his Columbia Business School colleague David Dodd had been refining this system since 1928—advocating for buying stocks trading well below their intrinsic value as a safeguard against an unpredictable future.

As it turns out, the very contract I had lived by for years came directly out of the pages of Graham's masterpiece. (You can see the exact pages in my other blog post here). Sticking to these principles pays off over time; for instance, when I wrote that email in July 2018, Apple was trading at a split-adjusted price of around $42. Today, it sits at $192.00.



Uncovering a 40-Year Mystery: Sir John Templeton

While Graham provided the structure, another investing giant implicitly taught me the value of a stock "basket." For 40 years, I remembered a story I heard on PBS back in 1984—likely on The Nightly Business Report with Paul Kangas and Linda O'Bryon, or Louis Rukeyser's Wall Street Week.

The story was about a legendary investor who began his career by buying stocks in 10 nearly failing, out-of-favor companies. His logic? If even one of those ten succeeded wildly, it wouldn't matter if the other nine failed.

I recently used AI to help me solve this decades-old mystery, and the answer was Sir John Templeton.

Templeton was a legendary contrarian value investor who famously noted that he would rather invest in 10 companies with a 10% chance of success than a single company with a 100% chance. He recognized that the market routinely overreacts to negative news, creating massive discounts for disciplined buyers. His Templeton Funds went on to become some of the most successful mutual funds in history.

Timeless Wisdom to Invest By

Templeton’s contrarian approach and Graham's value principles remain incredibly relevant today. As you navigate the markets, keep these classic Templeton principles in mind:

  • "The greatest danger to your financial security is not losing money, but not making money."
  • "Buy when others are fearful and sell when others are greedy."
  • "It is impossible to invest successfully without risk."
  • "It is not timing the market that is important, it is time in the market."

By building a resilient basket of quality companies and tuning out short-term noise, you set yourself up to weather any market storm.


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