Buying Market Tops Still Handily Beats Cash

Source: Fidelity

Take a moment with that chart. Every green bar represents a stock investor, including the one with the worst possible timing, putting $5,000 in at the market's peak every single year for four decades. The orange bar is the investor who stayed in cash the whole time.

The worst-timed stock investor still ended up with twelve times more money.

The Real Risk of Caution

Most people think of risk as losing money in a downturn. That risk is real. But there is a quieter risk that does not show up on a brokerage statement: the slow erosion of purchasing power when your money grows more slowly than the cost of living.

Cash and short-term bonds have their place. They fund emergencies, cover near-term expenses, and give retirees a cushion so they are not forced to sell investments at the wrong time. That is not excess caution. That is good planning.

The question worth asking is whether the cash sitting beyond those needs is a strategy or just a feeling.

"Investing" Does Not Mean Putting Everything Into the S&P 500

The study above uses the S&P 500 as its benchmark, and the numbers are striking. But staying invested does not require a concentrated bet on large US growth companies, which have had an extraordinary and somewhat unusual run of outperformance over the past decade.

A well-constructed portfolio draws from a much wider opportunity set. US stocks outside the S&P 500, international and emerging market equities, specific sectors, private assets, select commodities, and other return sources all have roles to play depending on your goals and timeline.

The purpose of that breadth is not simply to chase higher returns. It is to build a portfolio you can actually stay in through the inevitable periods of turbulence, without feeling compelled to move to cash every time a headline gets uncomfortable.

Diversification does not guarantee that you will outperform in any given year. What it does is smooth the ride considerably, reduce the severity of drawdowns, and keep you from making the most costly mistake in investing, which is abandoning a sound long-term plan at exactly the wrong moment.

For those who have built meaningful wealth, taxable accounts are almost inevitable. Retirement accounts have contribution limits, and successful careers tend to produce savings that outgrow them.

If that describes you, moving to cash carries a cost that often goes overlooked. Between federal, state, and net investment income taxes, realizing gains can cost you anywhere close to 50 cents on the dollar depending on where you live.

At that rate, the bar for successfully timing a move out of and back into the market is extraordinarily high. You would need to be right by a wide margin just to break even after taxes, let alone come out ahead.

What This Means for You

There is rarely a moment when the world feels calm enough to invest. There is always something on the horizon.

Right now is a good example: sentiment surveys are at multi-decade lows, global conflict continues to simmer, and AI stocks have delivered eye-watering returns that make continued outperformance feel increasingly difficult to count on. That unease is understandable.

But that is exactly where a well-diversified portfolio and the data in this chart should provide some comfort in taking the long view.

If you have been holding more cash than your plan actually requires, it may be worth revisiting that decision together. This data is most powerful for early-career adults. I’ll be sitting with our 20-year old to drive home the point.