100% Stock Portfolio Or Balanced With Bonds? — FIRE the Family

Nick French
6 min readMay 13, 2021

Traditional wisdom tells us that investors shouldn’t invest all of their cash into stocks. It’s too risky and irresponsible for the average investor. Instead, investors should have a percentage allocation to bonds in an effort to reduce portfolio volatility. Should you invest in an all-stock portfolio?

A 100% stock portfolio will see greater returns over the long term, but a higher return comes at the cost of additional risk. This table shows the historical returns (1926–2020) of 9 different stock-to-bond portfolio ratios:

Historical average returns for various stock and bond allocations. Source.

Based on the information presented in the table, allocating some portion of your investment portfolio to bonds is a prudent decision. A few percentage points of a return may not be worth it to chase the historically higher average returns of an all-stock portfolio.

Benjamin Graham, in his book, “The Intelligent Investor,” says the following investors may invest in a 100% stock portfolio if you:

  • have set aside enough cash to support your family for at least one year
  • will be investing steadily for at least 20 years to come

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Nick French

Dad, husband, software salesperson, MBA, personal finance writer (firethefamily.com)