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The Baby Bear Portfolio

The Baby Bear is based on the book Muscular Portfolios (BenBella Books, 2018) by Brian Livingston. The strategy is a clone of a white paper first published in 1996 and repeated in numerous presentations by Jack Bogle, founder of the Vanguard Group.

The Baby Bear is designed to achieve performance similar to the S&P 500 over each complete bear-bull market cycle with smaller drawdowns than the index. The strategy is not a Muscular Portfolio but a starter portfolio. It's primarily designed to keep trading costs exceptionally low for people who have less than $10,000 to invest.

The investing menu consists of low-cost exchange-traded funds (ETFs) that track two asset classes. You allocate roughly equal dollar amounts to each ETF.

The table below updates a couple of hours after the close every market day. But don't trade every day! Check and tune up your portfolio only once a month, on the same day of your choosing. The best gain is achieved by reallocating on or around the last trading day of the month (see Newsletter #28).

Asset class12-mo.
gain
ETF
symbol
PriceBuy
All US stocks
+10.07%
VTI
274.52
50%
All US bonds (government & corporate)
+7.23%
BND
73.06
50%
Performance data calculated on May 01, 2025, at 7:02 pm ET (market closing prices).

Strategy Rules: The Baby Bear Portfolio, unlike a Muscular Portfolio, has no strategy rules. You simply allocate 50% to each of the two ETFs shown above, regardless of market conditions.

Execution Rule: Buy or sell an ETF only if its bid-ask spread is less than 1.0%. (If greater than 1.0%, a "flash crash" might be occurring. Check an hour later to see whether an orderly market has been restored.) Popular ETFs typically have spreads below 0.2%, but some bond and commodity ETFs have legitimately higher spreads due to trading differences.

 


KEY TO STATS

12-mo. gain is equal to an ETF’s nominal total gain (including dividends) over the past 252 trading days.

Prices and returns are recalculated approximately 2 hours after market close.

A flash crash is a temporary situation lasting a few minutes, during which prices and spreads suddenly move far from their typical values.






Muscular Portfolios, the Mama Bear Portfolio, the Papa Bear Portfolio, and the Baby Bear Portfolio are registered trademarks of Publica Press and are used under license.