At 5% CD Yields, How Should Investors Balance Cash, Bonds and Stocks?

By Olivia Hart

Cash and bond yields have reached their highest levels in more than 15 years, with 5% certificate-of-deposit yields now part of the investor calculation, Morningstar says. Many investors are asking whether those higher-yielding options should take precedence over stocks, according to Morningstar.

Christine Benz, Morningstar’s director of personal finance and retirement planning and co-host of The Long View podcast, says the choice should follow spending needs, liquidity and tolerance for fluctuation—not simply the highest headline yield. Morningstar offers no universal percentage split; its framework starts with the time horizon for each sum of money.

What makes cash attractive—and where can it disappoint?

Cash products currently offer compelling yields and avoid the potential for principal volatility, Morningstar says. That safety has particular appeal after losses for some bond investors over the past few years and so far in 2026, Benz says. Morningstar’s annual diversification research also has found that cash is a solid diversifier for equities, on par with bonds.

Benz puts the central constraint plainly: “Cash yields are fleeting.” Benz explains that cash investments are short-term loans to various entities, so falling interest rates can erase high yields as higher-rate loans are retired. A money market mutual fund or high-yield savings account will fluctuate with the rate environment; an individual CD can lock in the higher yield for longer.

Benz calls inflation a top-of-mind risk after recent above-average inflation. Over very long periods, cash yields sometimes beat inflation, but not always, Morningstar says. Because a long-term cash return is typically lower than a bond return, inflation takes a bigger bite out of the payout.

Morningstar’s takeaway: Cash protects near-term liquidity and principal, but its rate can reset and its purchasing power can erode.

Why pay for bonds when a cash account yields 5%?

Morningstar identifies three advantages for investors with a time horizon beyond cash. None eliminates risk, because rates and inflation can still reduce the return on a bond.

• Rate lock: An individual bond with a 10-year maturity keeps its interest rate over the holding period.
• Price appreciation: If market yields fall from current levels, bond investors can benefit from higher bond prices.
• Equity-shock potential: Morningstar says bonds might also gain value in an equity-market shock, while cash offers no price appreciation.

These benefits carry two risks. If rates keep rising, bond prices can fall, especially for long-term bonds, while inflation can erode the interest income that bonds pay.

Morningstar’s takeaway: Bonds offer rate certainty and possible price gains, but investors must accept greater interest-rate and inflation risk.

How should cash, bonds and stocks match your timeline?

Morningstar’s Role in Portfolio framework matches each asset to the period in which the investor expects to spend it. It also uses ongoing liquidity and risk capacity to refine that basic timeline.

• Cash: Use it for a spending horizon of two years or less, or where ongoing liquidity is required, such as in retirement.
• Bonds: Use them for a horizon of two to 10 years.
• Stocks: Use them for 10 years or longer, when equities have time to provide growth.

For retirees, Morningstar recommends earmarking one to two years of anticipated portfolio spending in cash. The framework also asks whether a downturn could force the sale of stocks. A tighter spending plan can support slightly more risk because growth may be necessary; a portfolio with more assets than required can leave room for more cash and bonds.

Morningstar does not set one portfolio mix for every household. It treats risk capacity, spending flexibility and the need for ongoing liquidity as constraints on the allocation.

Morningstar’s takeaway: Match the asset to the date of the expense, then reduce risk only if the spending plan can absorb fluctuations.

When can a retiree hold more stocks?

Benz says a retiree who is willing to adjust spending during market declines may hold a more equity-heavy mix. Retirees with sizable portfolios and modest spending can also maintain more equities than retirees with smaller portfolios who are drawing down more assets.

Morningstar says equity-heavy mixes tend to leave higher residual balances at retirement. Benz explains the objective directly: “If your goal is to have leftovers at the end of your retirement life cycle, having a little more in equities can make that more likely.”

The condition is material: the investor must be able to revise spending rather than sell stocks after a decline. Morningstar warns that a portfolio needing cash during a downturn may have to reduce stocks at an unfavorable price.

Morningstar’s takeaway: More stocks can fit a retiree with flexible spending, a large portfolio or a legacy goal, but not one who cannot tolerate forced sales.

What will decide which asset wins?

The next rate path will determine how today’s yields behave, Morningstar says. Falling rates can reduce cash yields and support bond prices; rising rates can push bond prices lower, especially for long-term bonds.

Morningstar’s practical test is whether today’s 5% payout can support the plan as rates change and inflation persists. The headline yield matters less than the date the money is needed and the flexibility to wait.