Deficit, Inflation, and the New Federal Reserve: The Underlying Logic Behind U.S. Treasury Yields Breaking 5% and Market Reset

Key Data: 10-year yield 4.61% to 4.687% · 30-year yield 5.2%, the highest since 2007 · S&P 500 falls for three straight sessions · Wosh confirms appointment as new Federal Reserve Chair · “A Great Beautiful Bill” expected to increase deficits by $2.8 trillion · 62% of fund managers expect the 30-year yield to reach 6%

Section One — What’s Happening Now

During the week of May 15 to 19, 2026, U.S. long-term government bond yields surged to the highest levels in years. The 10-year U.S. Treasury yield rose to 4.61% on May 18, a one-year high, and then climbed further to 4.687% on May 19. The 30-year U.S. Treasury yield jumped to 5.2%, the highest level since 2007. The S&P 500 fell by more than 1% on May 15, then dropped another 0.67% on May 19, closing lower for the third consecutive trading day. The Nasdaq declined 0.90%, and the small-cap Russell 2000 index fell 1.33%.

Multiple factors are converging at the same time. Inflation data came in hotter than expected. In April, wholesale prices rose 6% year over year, setting the highest upstream inflation pressure in years. The U.S. debt trajectory continues to deteriorate. A newly appointed Federal Reserve Chair has taken over amid what has been, for years, the most complex inflation environment. A large-scale tax cut bill is expected to add tens of trillions of dollars to national debt over the next decade.

The bond market is loudly sounding the alarm, and the stock market is finally beginning to listen.

Educational Note: U.S. Treasury yields are the interest rates the U.S. government pays for borrowing money. When yields rise, it means the government must pay higher interest to attract lenders—either because investors demand higher risk compensation, or because bond supply exceeds market demand.

Section Two — Four Reasons for Rising Yields

Reason One: Stubborn Inflation Is Hard to Curb

April’s inflation data released on May 15 came in above market expectations, directly triggering an immediate spike in yields. Wholesale prices in April rose 6% year over year, setting the highest record for upstream inflation in years, indicating that price pressure is not only showing up on the consumer side—it is being transmitted upward through the entire supply chain.

Since September 2024, the Federal Reserve has cut rates cumulatively by 175 basis points—100 basis points in the second half of 2024, and another 75 basis points in the second half of 2025. Under normal circumstances, long-term yields should have moved lower accordingly. But reality is the opposite: the 10-year yield has fallen only about 35 basis points, while the 30-year yield has risen instead, reaching 5.2%. Mark Malek, Chief Investment Officer at Siebert Financial, said bluntly in a widely circulated article that this divergence is “unprecedented”: “Historical data going back to 1990 shows that there has never been such an abnormal disconnect between Fed policy and long-term yields.”

Current market pricing shows that the probability of rate hikes before December 2026 has risen to 48%, up from just 14% a week ago. The probability of rate cuts has fallen to below 1%. Bond market expectations are no longer for a “pause” in easing—they are shifting toward pricing a “return to rate hikes.”

Reason Two: The New Federal Reserve Chair Takes Over a Crisis

On May 13, 2026, the U.S. Senate confirmed Kevin Warsh as the new Federal Reserve Chair by a vote of 54 to 45—this is the most controversial confirmation vote for a Fed Chair in the Fed’s history. His term officially began on May 15 when Jerome Powell’s term expired. Powell chose to remain on the Federal Reserve Board as a member.

When Warsh took over, U.S. inflation had been above the Fed’s 2% target for more than five consecutive years. Energy prices remained high due to the ongoing U.S.-Iran conflict, and the bond market was calling for a clear return to fiscal discipline. JPMorgan had expected the Fed to keep rates unchanged throughout 2026, with the earliest possible hike being 25 basis points in the third quarter of 2027. Warsh said at the confirmation hearing that the Fed needs a “different inflation response framework.” His first Federal Open Market Committee (FOMC) meeting is scheduled for June 16 to 17, when every statement will move the market.

Reason Three: The U.S. Debt Problem Is Worsening

The U.S. runs an annual fiscal deficit of about $2 trillion. Interest payments on the outstanding debt alone are already approaching nearly $1 trillion per year. The U.S. Treasury expects to need to borrow $189 billion in just the second quarter of 2026, which is $79 billion more than the prediction from a few months earlier. Actual borrowing in the first quarter of 2026 was $577 billion, and borrowing of $671 billion is expected in the third quarter.

Every bond must find investors willing to buy it. When market supply exceeds natural demand, the only mechanism that can restore balance is higher yields. The International Monetary Fund has warned that the “safety premium” on U.S. Treasuries—i.e., the extra demand they receive as the world’s safest asset—is fading. Once the safety premium disappears, yields will inevitably rise to make up the gap.

Reason Four: “A Great Beautiful Bill” and Moody’s Downgrade

“A Great Beautiful Bill” (OBBB), signed into law in 2025, permanently extends the tax-cut policies from Trump’s first term and adds new tax-cut provisions. The Congressional Budget Office estimates the bill will increase fiscal deficits by $2.8 trillion over the next decade. If all temporary provisions are made permanent, the Committee for a Responsible Federal Budget estimates the cost could reach $4 to $5 trillion.

On May 16, 2025, Moody’s downgraded the U.S. sovereign credit rating from Aaa to Aa1, becoming the last of the three major rating agencies to downgrade the U.S. rating. S&P completed its downgrade as early as 2011, and Fitch followed in 2023. Moody’s cited the failure of successive governments to effectively address the persistent rise in deficits and interest costs. It is expected that by 2035, federal government interest spending will account for 30% of fiscal revenue, compared with 18% in 2024 and just 9% in 2021.

A Bank of America survey released on May 19 shows that 62% of global fund managers expect the 30-year Treasury yield to eventually touch 6%. This is the most pessimistic bond-market consensus since the end of 1999. The term “bond vigilantes” is back in market conversation—an idea first coined in the 1980s by Wall Street veteran Ed Yardeni to describe traders who sell bonds to punish fiscal extravagance, pushing yields higher and forcing governments to confront fiscal problems. As Malek puts it, today’s “bond vigilantes” are carrying out “a slow and systematic pressure campaign.”

Educational Note: The yield curve refers to the chart showing the relationship between yields on Treasuries of different maturities. When long-term yields rise far faster than short-term yields, this is called a “bear steepener.” This usually means investors are worried about long-term inflation and fiscal sustainability, even if short-term policy rates remain relatively stable.

Section Three — Why Rising Yields Impact the Stock Market

Rising yields put pressure on the stock market through four different channels.

Channel One: Discount Effect

The value of each stock equals the present value of all its future earnings discounted to today. The higher the discount rate, the lower the present value. Rising yields directly push up the discount rate, and high-growth technology stocks are hit hardest because much of their value comes from future earnings that will only be realized years later. 2022 is the best reference: the 10-year yield surged from 1.5% to 4.3%, the Nasdaq index fell cumulatively by 33%, and Nvidia’s value was cut by more than 50%. Most of these losses came from compression of valuation multiples rather than deterioration in earnings. The 2026 pace is more gradual, but the operating mechanism is the same.

Channel Two: Competition Effect and Equity Risk Premium

When the risk-free government bond yield for 30 years reaches 5.2%, stocks must deliver returns far higher than that to persuade investors to take on additional risk. Currently, the S&P 500’s earnings yield is about 4.2%, while the 10-year Treasury yield is 4.6%. This means that the returns investors receive from stocks are, in effect, lower than the returns from risk-free Treasuries—an unusual and difficult-to-sustain situation. The equity risk premium has been compressed to near zero. Historical patterns suggest this situation will eventually be corrected through falling stock prices or declining yields. But yields are not falling now.

Channel Three: Borrowing Cost Effect

When Treasury yields rise, borrowing costs across the economy increase as well. By mid-May 2026, the 30-year fixed mortgage rate has risen to 6.34% to 6.54%. Higher corporate financing costs suppress consumer spending on housing, autos, and credit cards. The bond market’s signal ultimately filters through to every household and every corporate balance sheet.

Channel Four: A Stronger Dollar and International Capital Flow Effects

Rising U.S. yields attract global capital into dollar-denominated assets, pushing up the dollar exchange rate and creating translation-layer pressure on overseas profits for U.S. multinational companies. For Asian investors, capital flowing to the U.S. exerts pressure on Asian currencies, real estate investment trusts (REITs), and income-producing assets. This round of yield increases is resonating globally: the UK 10-year Treasury yield breaks above 5.1%, the yield on Japanese government bonds rises to 2.71%, the highest level since 1997, and German government bond yields also climb in tandem. When global bonds are sold off at the same time, the pressure on equities is amplified everywhere.

Educational Note: The equity risk premium is the extra return investors require for holding stocks relative to the risk-free rate. Currently, with the S&P 500 earnings yield at about 4.2% and the 10-year Treasury yield at 4.6%, stocks are, on a technical basis, less attractive than bonds. Historically, a compression like this is often a leading signal of weakening in the stock market, because capital tends to shift toward assets with higher yields and lower risk.

Section Four — Impact on Different Types of Investors

Stock Investors

The current environment is more unfavorable for high-valuation growth stocks. Banks, insurance companies, and value cyclicals often perform relatively better in rising-yield environments because wider net interest margins benefit financial stocks. Technology stocks, REITs, and utilities face the greatest pressure.

Bond Investors

Note: Short-term bonds currently offer attractive yields close to 4% to 4.5%, with relatively low price volatility. Most analysts prefer intermediate-term bonds with maturities of 5 to 10 years, viewing them as the best balance between yield and risk management. For long-term bonds of 20 to 30 years, the largest downside price risk exists if yields continue to rise.

Income Investors

They are experiencing the most attractive fixed-income environment in more than a decade. The 10-year Treasury yield of 4.6% is a genuinely substantial fixed-income return. Investment-grade corporate bonds provide spreads above Treasuries, delivering richer returns. For buy-to-hold investors, the attractiveness of locking in today’s yield levels far exceeds any opportunity in 2020 or 2021.

Section Five — Key Developments to Watch

Warsh Hosts His First FOMC Meeting, June 16–17. This is the most important upcoming event right now. Any remarks about policy direction—whether it involves tolerating inflation or leaning toward tightening—will have a major impact on both the bond and stock markets.

U.S. Inflation Data. The monthly CPI and PCE releases determine whether rate-hike expectations will be further strengthened. April’s wholesale prices are up 6%, indicating that upstream pressures have not eased yet.

U.S. Treasury Bond Auction Results. If auction demand is weak, it signals that an ongoing supply-demand imbalance persists, further reinforcing upward pressure on yields.

30-Year Yield Moving Toward 6%. Ian Lyngen, head of rates at BMO, previously said that if the 30-year yield continues to hold above 5.25%, it could trigger a “more persistent pullback” in stock valuations. The 30-year yield is currently at 5.2%. The consensus forecast target value from U.S. banks is 6%. The critical point for structural valuation repricing in the stock market is getting closer.

Framework for Allocation Thinking to Deal with the Current Environment:

Stock Investors: Consider modestly rotating from long-duration growth stocks to value stocks, financials, and sectors with stable current earnings.

Bond Investors: Compared with long-term Treasuries, prefer intermediate-term bonds and high-quality investment-grade credit.

Income Investors: The current yield level represents a rare opportunity to lock in high-quality income over the past 10-plus years.

The equity risk premium is close to zero. The 30-year yield hits a new high since 2007. The new Federal Reserve Chair takes over the inflation challenge. Bond vigilantes are back in full force. The bond market’s message could not be clearer: the era of cheap government borrowing has come to an end. Whether the stock market can digest this reality smoothly—or whether some link will ultimately break—will be the core issue the market faces in the second half of 2026.

The above investment views are sourced from BIT’s invited analysts and do not represent BIT’s official position.

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Data Sources

CNBC, “30-Year Treasury Yield Breaks 5.19%, Highest Level Since Pre-Financial Crisis,” May 19, 2026. CNN Business, “30-Year U.S. Treasury Yield Rises to Highest Since 2007,” May 19, 2026. Federal Reserve FRED database, 10-year Treasury constant maturity rate, May 18, 2026. TheStreet, Market Daily, May 19 and May 15, 2026. CNBC, “Kevin Warsh Confirmed as New Fed Chair,” May 13, 2026. Yahoo Finance, “Warsh Confirmed as New Fed Chair as Inflation Heats Up,” May 2026. JPMorgan Global Research, “Next Steps for the Fed,” April 2026. Fortune, “Bond Market Is in Riot,” May 2026. HeyGotrade, “10-Year Treasury at 4.6%: How Yield Rise Reshapes 2026 Stock Market,” May 2026. Meris Media, “30-Year Treasury Yield Breaks 5.1%,” May 2026. Allianz Global Investors, Moody’s downgrade analysis, 2025. Fidelity Investments, U.S. credit rating downgrade, May 2025. Wikipedia, “A Great Beautiful Bill” entry. Price, “Impact of U.S. Tax Law on Economy and Bond Markets,” July 2025. U.S. Bank Asset Management, “Impact of Interest Rate Changes on Bond Markets,” April 2026. Data as of May 19, 2026.

Risk Warning and Disclaimer

The views described in this report reflect market analysis as of the report date. Market conditions may change rapidly, and the related views may be adjusted without further notice. The data sources cited in this report are from public channels. BIT does not provide any guarantee regarding their accuracy, completeness, or timeliness. This report is for informational and educational purposes regarding finance and market information only, and reflects the market situation and the views of the research team at the time the report was written. All content does not constitute investment advice, an offer, or a solicitation for any financial product. Third-party forecasts and market views cited in the report do not represent BIT’s position and have not been independently verified. Market forecasts mentioned in the report (including but not limited to specific figures such as “6% for the 30-year yield”) are the results of market surveys at a single point in time, and do not constitute a prediction or guarantee of future market trends. Investment involves multiple risks, including market risk, interest rate risk, credit risk, exchange rate risk, liquidity risk, and more. Investors may lose part or all of their principal. Past performance and market results do not represent future returns. This report does not constitute investment advice for any specific investor. Investors should make independent investment decisions based on their own financial situation, investment objectives, and risk tolerance, and consult licensed professional advisors when necessary. This report is intended only for eligible investors and is not provided to residents of any jurisdictions where such distribution is prohibited.