Bond Markets are Jittery – Should Investors Be Too?
Auctions for 20-year U.S. Treasuries are generally a routine, straightforward event that few investors pay much attention to.
That was not the case last week.
The auction for roughly $16 billion in 20-year debt featured unusually soft demand, with investors bidding up yields past 5%, well above the approximately 4.6% average seen in recent auctions. The 20-year bond joined 30-year Treasury yields above 5%, and the 10-year also continued to inch higher, crossing 4.6%. Stocks sold off sharply on the news.1
20-year and 30-Year U.S. Treasury Bond Yields Have Been Climbing Steadily

To be fair, these are not financial crisis-type moves in the bond markets, and there have been plenty of periods historically when yields are higher than they are now and the economy and stock market performed well. But it is correct to point out, in my view, that markets appear to be growing somewhat uncomfortable with the U.S.’s inflation and fiscal outlook.
In a past Mitch on the Markets column, I laid out three reasons why Treasury bond yields may move significantly higher:
- 1. Expectations for economic growth are going up, tied to expectations for pro-growth, pro-cyclical policies from the [current] administration.
- 2. Inflation expectations are going up, due to strong expected growth in an economy near full capacity or because of other factors, like trade policy (tariffs).
- 3. The bond market becomes increasingly concerned about fiscal health/sustainability, with growing deficits necessitating higher levels of bond issuance.
The concern is that yields are currently rising because of some combination of #2 and #3. The possibility of higher tariffs and higher government deficits (tied to the budget bill) aren’t helping.
Let’s start with the deficit issue. The starting point for the U.S. in 2025 is not great—the debt-to-GDP ratio is approaching a new all-time high, and the deficit relative to GDP is about 5% wider than it has historically been when the economy was at full employment. It is with this backdrop that “One, Big, Beautiful Bill” has passed the House of Representatives, which introduces tax cut extensions, new tax cuts, and spending provisions that are not fully paid for by cuts or new revenue. The implication is more annual budget deficits and additions to the national debt, which means more Treasury issuance. Yields are not likely to move lower in this scenario.
On the spending side, “One, Big, Beautiful Bill” introduces some spending cuts and measures like work requirements for Medicaid coverage, and the Department of Government Efficiency (DOGE) continues efforts to reduce government spending. But the scope of these spending cuts together is not likely to cover the cost of the tax cuts and annual government expenditures, which means shrinking the deficit is not likely. The Senate may demand more spending cuts in the bill, but the actual outcome remains to be seen. It’s understandable that bond markets are a bit wobbly in the meantime.
On the inflation side of the ledger, it is really all about whether tariffs remain in force, and for how long. In Trump’s first term, tariff threats were loud on the ‘bark’ but ultimately far more modest on the ‘bite.’ The tariffs that stuck were largely relegated to China, and corporations responded in many cases by rerouting trade through Vietnam and other intermediaries (including Mexico). U.S. markets and the economy did not feel much pain, and overall core inflation remained below 2% throughout this period.
We do not know where tariffs will end up for the wide variety of U.S. trading partners. But the baseline 10% universal tariff will arguably raise inflation at least moderately, perhaps to around 3% at the peak. Growth could also see an impact, given higher import costs and greater uncertainty. If Treasury yields go up in this case because of higher inflation and inflation expectations—without a corresponding acceleration in growth—that could trigger another correction in stocks, in my view.
Bottom Line for Investors
There’s still time. Tariffs, growing budget deficits, and sluggish economic growth are not foregone conclusions, and sharply rising bond yields aren’t either. We could see a breakthrough in trade deals, changes could be made to One, Big, Beautiful Bill to make it more budget neutral, and inflation could remain in check as the economy remains fundamentally strong. U.S. Treasury bond yields could remain in a trading range under these circumstances, and the Fed may even find cause to lower the fed funds rate and steepen the yield curve in the process.
In 2023, acute worries over too much debt and deficit spending faded as inflation came down and the economy grew, fueling the bull market in stocks and pulling in foreign investment. The door is open for this possibility in 2025, too.
1 Wall Street Journal. May 22, 2025. https://advisor.zacksim.com/e/376582/al-mess-in-washington-fcebd153/5t2vxb/1237912929/h/zpGCdFbX-oF19sjx8ZsTe4zrMB4i4WyP0yMDfChzOVI
2 Fred Economic Data. May 21, 2025. https://advisor.zacksim.com/e/376582/series-DGS20-/5t2vxf/1237912929/h/zpGCdFbX-oF19sjx8ZsTe4zrMB4i4WyP0yMDfChzOVI
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