Just Keep Buying

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Background summary — AI-generated; not source-grounded.

Just Keep Buying: Proven Ways to Save Money and Build Your Wealth (2022), by Nick Maggiulli, makes the case for systematic, recurring investment regardless of market conditions. The core argument — formalising the dollar cost averaging thesis Maggiulli had developed on his Of Dollars And Data blog — is that investors cannot reliably time market peaks and troughs but can reliably improve outcomes by never stopping. Over any 20-year horizon, diversified US equities have produced no real negative returns; the principal risk is not buying at the wrong moment but failing to buy at all.

The book builds from a savings framework (when to prioritise saving more versus investing more, based on income level and existing wealth) through a series of common investing myths — that you should buy the dip, hold cash at market highs, or pay off all debt before investing — and refutes each with historical data. Maggiulli’s method is consistently data-driven: arguments are illustrated with empirical back-tests rather than individual investor narratives. The title names both the strategy and its conclusion: the best move, under almost any market condition, is to just keep buying.

Published April 2022 by Harriman House. Sold over 400,000 copies worldwide.

In the wiki

• Nick Maggiulli — author; writes Of Dollars And Data (weekly data-driven personal finance blog); see also The Wealth Ladder