If Bonds Pay 5%, How Good Does a Stock Need to Be?
I think investors sometimes make interest rates more complicated than they need to be.
Every time the Federal Reserve moves, we immediately ask:
Will they hike again?
When will rates peak?
When will they cut?
And then we try to position our portfolios around the answer.
I’ve never found that particularly useful.
Because even if you correctly predict the Fed’s next move, you still have another question to answer:
What is the investment actually worth?
And with the US 10-year Treasury yield now around 5%, that question has become much more interesting.
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You Can Now Earn About 5% From the US Government
As of September 25, the US Treasury’s official yield curve showed the 10-year Treasury at about 5.17%.
Reuters put the market yield at roughly 5.20% that same day — a 19-year high.
Now compare that with stocks.
The S&P 500 was trading at just under 19 times expected earnings, according to LSEG data cited by Reuters.
Interestingly, that is actually the index’s lowest forward valuation since 2023.
So I wouldn’t describe the current situation as:
“Bond yields are high and stock valuations are at all-time highs.”
That’s no longer quite accurate.
The more interesting observation is:
Even after equity valuations have compressed, a 5% Treasury yield creates meaningful competition for capital.
This Changes the Discount Rate
Imagine someone offers you a business for $1 million.
The business earns $50,000 a year.
That’s effectively a 5% earnings yield.
Would you buy it?
Maybe.
But suppose you can also buy a government bond yielding around 5%.
Suddenly, I would need to know a lot more about the business.
Can earnings grow?
How durable are they?
How much capital does the company need?
Could competition destroy the margin?
Will management allocate capital well?
The business hasn’t changed.
Your alternative has.
And that’s what higher bond yields do.
They raise the discount rate.
This Is Opportunity Cost
Every investment decision contains an invisible alternative.
If I put $100,000 into Stock A, that is $100,000 I cannot simultaneously put into Stock B.
Or a property.
Or a bond.
Or simply keep in cash.
So when relatively low-risk assets start paying materially more, investors should logically demand more from riskier assets.
That’s why rising Treasury yields can put pressure on stock valuations.
Reuters noted earlier this month that higher bond yields create three broad challenges for equities:
1. Stronger competition for investor capital,
2. Higher borrowing costs,
3. And lower present values for future corporate cash flows.
None of this means stocks automatically fall whenever bond yields rise.
But the maths becomes harder.
Stocks Have Something Bonds Don’t: Growth
This is where comparing a stock’s earnings yield directly with a bond yield becomes dangerous.
They are not the same thing.
A Treasury bond gives you contractual payments.
If you hold it to maturity and the US government pays as promised, you know broadly what nominal cash flows you’ll receive.
A business does not promise you a fixed earnings stream.
Its profits can grow.
Or shrink.
That’s why I might happily own a company with a current 4% earnings yield even when Treasuries yield 5%.
Suppose earnings can compound at 15% annually for the next decade.
My share of the company’s earnings could eventually become much larger.
A Treasury coupon won’t suddenly grow by 15% next year.
So the question isn’t:
“Why buy stocks if bonds yield 5%?”
The better question is:
“How much growth and business quality do I need to justify taking equity risk?”
Valuation Is Really a Set of Expectations
This is why I think P/E ratios are often misunderstood.
Let’s say one business trades at 30 times earnings.
Another trades at 15 times.
It is tempting to say:
15 times is cheap.
30 times is expensive.
But valuation only makes sense relative to what happens next.
If the 30-times business compounds earnings at 20% for many years while the 15-times business never grows, the apparently expensive company may ultimately produce the better return.
Conversely, a wonderful business trading at an extremely optimistic valuation can disappoint investors even while the underlying company performs quite well.
The stock price already expected greatness.
So when risk-free yields rise, I find myself asking an even tougher question:
How much success is already embedded in the share price?
The Market Hasn’t Collapsed Under 5% Yields
That’s also worth acknowledging.
Despite the sharp rise in bond yields, US equities remain remarkably resilient.
The S&P 500 ended September 25 at 7,743, and had gained around 1.2% that week.
Why?
One explanation is earnings.
Strong corporate profit growth — particularly from AI-related companies — has helped support valuations even as the discount rate has increased.
Earlier in September, FactSet reported that analysts had actually raised aggregate Q3 S&P 500 earnings estimates during July and August, when they would normally reduce them during that part of a quarter.
That’s an important reminder.
Interest rates are only one side of valuation.
The other side is cash flow.
If earnings grow quickly enough, equities can absorb a higher discount rate.
Where Higher Rates Matter Most
Not every business is equally sensitive to a 5% Treasury yield.
Consider two companies.
Company A generates enormous free cash flow today.
Company B might generate enormous cash flow ten years from now.
If discount rates rise, Company B is generally more affected.
Why?
Because more of its value depends on cash flows far into the future.
The further away the money is, the more heavily today’s interest rate affects what those future dollars are worth today.
That’s why very long-duration growth stocks can be particularly sensitive to changing yields.
The same principle appears in property.
If I buy an asset primarily for cash flows 15 years in the future, my required return matters enormously.
The asset hasn’t changed.
The rate at which I discount those future cash flows has.
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A 5% Bond Yield Doesn’t Tell Me to Sell Stocks
I wouldn’t look at today’s Treasury yield and suddenly move an entire stock portfolio into bonds.
That would be replacing one attempt at market timing with another.
Instead, higher rates change the questions I ask.
For every business I own:
What is the current free-cash-flow yield?
How quickly can that cash flow grow?
How certain am I about that growth?
How much debt does the business carry?
What multiple am I paying?
And finally:
Am I being adequately compensated compared with alternatives available today?
Sometimes the Most Important Number Is Outside the Company
Investors naturally spend most of their time studying companies.
Revenue.
Margins.
Market share.
Management.
Moats.
Those things matter.
But valuation doesn’t exist in isolation.
A business can remain exactly the same while the attractiveness of owning it changes because the world around it changes.
When cash paid almost nothing, investors were willing to travel much further out on the risk curve to find returns.
When long-term government bonds pay around 5%, the bar gets higher.
That doesn’t make stocks bad investments.
It simply means mediocre opportunities should be harder to justify.
And maybe that’s the most useful way to think about today’s bond market.
Don’t ask:
“Are 5% yields bearish for stocks?”
Ask:
“If I can earn roughly 5% elsewhere, what return should this business offer me to justify the additional uncertainty?”
That question doesn’t require predicting the Fed.
It requires understanding the investment.
And that’s something we can actually control.
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