Watch the short, then read the full breakdown below.

When stocks and bonds both lose money in the same year, the diversification most portfolios rely on briefly stops working. This usually happens when interest rates rise quickly to fight inflation, which pushes bond prices down at the same time it pressures stocks. The pairing is rare, but planning for it matters.

Why do stocks and bonds usually move differently?

Most portfolios pair stocks and bonds because the two tend to react to events in different ways. Stocks reflect company growth and investor optimism, so they often rise when the economy is strong and fall when it weakens. Bonds pay fixed interest, so they often act as a steadier anchor when stocks drop.

That offsetting relationship is the whole idea behind a balanced portfolio. In a typical downturn, bonds cushion the fall in stocks, so the combined account drops less than stocks alone. In the short above, Austin explains why this usual pattern can break down.

What makes them fall at the same time?

The link between stocks and bonds is a tendency, not a rule. In some years the two fall together, and the most common cause is a sharp rise in interest rates to slow inflation.

Here is the chain of events:

  1. Inflation climbs. Prices rise faster than expected, and the Federal Reserve responds by raising interest rates to cool the economy.
  2. New bonds pay more. As rates rise, newly issued bonds offer higher interest. Existing bonds with lower fixed payments become less attractive, so their market prices fall.
  3. Stocks feel the pressure too. Higher rates raise borrowing costs for companies and make future profits worth less today, which can drag stock prices down.

In this scenario, the same force, rising rates, hits both sides of the portfolio at once. The bonds that normally cushion a stock decline are falling too, so they offer little protection.

Why do bonds lose value when rates rise?

This part surprises many investors, because bonds are often described as safe. A bond is a loan with a fixed interest rate. If you own a bond paying a lower rate and new bonds start paying more, no one will buy yours at full price. Its market value drops until its yield matches what new buyers can get elsewhere.

The length of the bond matters. A long-term bond locks in its lower payment for many years, so its price falls further when rates climb. A short-term bond returns your money sooner, letting you reinvest at the new higher rate, so its price moves less. This is one reason a thoughtful investment strategy watches how long the bonds in a portfolio run, not just how many you hold.

How often does this happen, and how bad is it?

Years when both stocks and bonds decline are uncommon. Over long stretches of history, bonds have far more often risen when stocks fell, which is exactly why the pairing remains useful. But uncommon is not the same as impossible, and the years it does happen can be jarring because the usual safety net is gone.

A useful way to keep perspective:

  • The combination is rare. In most down years for stocks, bonds have helped rather than hurt.
  • The decline is usually temporary. Both asset types have recovered from past shared declines, though the timing has varied.
  • The damage depends on timing. A shared loss hurts most when you are pulling money out, and far less when you have years to wait for recovery.

A loss on paper is very different from a loss you are forced to lock in by selling, which is the distinction a real plan is built around.

What does this mean for a 60/40 portfolio?

The classic 60/40 portfolio, roughly 60% stocks and 40% bonds, is built on the idea that the two balance each other. A year when both fall does not break that idea, but it shows its limits.

A typical down year A rare shared-decline year
Stocks Fall Fall
Bonds Often rise or hold Fall too
Diversification effect Cushions the loss Offers little cushion
Best defense The bond allocation Cash and a long timeline

The takeaway is not that the 60/40 mix is broken. It is that no single mix protects against every condition, and the rare shared-decline year is the one a balanced portfolio handles least well. Recognizing that in advance keeps a hard year from turning into a costly mistake.

How can you prepare for a year when both fall?

You cannot remove this risk, but you can reduce how much it disrupts your plan. The goal is to avoid being forced to sell at a low point.

  • Hold cash for near-term needs. Keeping one to a few years of spending outside stocks and bonds means a shared decline does not force a sale.
  • Mind your bond length. Shorter-term bonds fall less when rates rise, trading some yield for more stability.
  • Diversify beyond the basics. Spreading money across additional asset types can soften a year when the two main ones move together.
  • Match risk to your timeline. The closer you are to needing the money, the less should sit in assets that can fall sharply.

For retirees, this matters even more, because withdrawing income right after a shared decline can do lasting harm. Careful retirement planning addresses this with a cash reserve, so a rare bad year does not force you to sell at the wrong time.

There is also a tax angle. A year of losses can open the door to tax-loss harvesting or a Roth conversion at depressed values, but those moves only help if they fit your full tax picture. Because our firm pairs a CFP® with a CPA on staff, we weigh investment and tax decisions together rather than separately. That coordinated approach to financial planning can turn a difficult market into a planning opportunity.

Wondering how your portfolio would hold up if stocks and bonds fell together? Talk with our team in Marshall, Michigan and we will stress-test your plan, coordinating the investment and tax decisions as one strategy.

This article is educational and is not personalized investment, tax, or legal advice. Wealth Ease Wealth Management is a registered investment adviser; consult a qualified professional about your specific situation.

Frequently asked questions

Can stocks and bonds lose money at the same time?

Yes. Stocks and bonds usually move differently, but in some years they fall together, most often when interest rates rise quickly to fight inflation. Higher rates push existing bond prices down while also pressuring stock valuations, so the diversification you expected from owning both can briefly disappear.

Why do bonds lose value when interest rates rise?

A bond pays a fixed interest rate. When new bonds are issued at higher rates, your older, lower-rate bond becomes less attractive, so its market price falls until its yield matches current rates. Longer-term bonds fall more than short-term bonds because the lower payment is locked in for longer.

Does a 60/40 portfolio still work?

The 60/40 mix of stocks and bonds still spreads risk across most market conditions, but it is not immune to a year when both fall together. It works best as a long-term framework, not a guarantee. Holding cash for near-term needs helps you ride out the rare years when both decline.

How can I protect against stocks and bonds both falling?

No mix removes the risk entirely, but you can soften it. Keeping one to a few years of spending in cash, holding shorter-term bonds, diversifying across asset types, and matching risk to your timeline all help. The goal is avoiding forced sales during a rare year when both decline.

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