Deficits, Inflation, and the New Fed: The Deep Logic Behind US Treasury Yields Breaking 5% and a Market Reset

Key Data: 10-Year Yield 4.61% to 4.687% · 30-Year Yield 5.2%, Highest Since 2007 · S&P 500 Falls for Third Consecutive Day · Warsh Confirmed as New Fed Chair · The "One Big Beautiful Bill" Expected to Increase Deficit by $2.8 Trillion · 62% of Fund Managers Expect 30-Year Yield to Reach 6%

Section 1 — What is Happening Right Now

During the week of May 15-19, 2026, long-term U.S. Treasury yields surged to their highest levels in years. The 10-year Treasury yield climbed to 4.61% on May 18, a one-year high, before rising further to 4.687% on May 19. The 30-year Treasury yield soared to 5.2%, its highest level since 2007. The S&P 500 fell over 1% on May 15 and dropped another 0.67% on May 19, marking its third consecutive losing session. The Nasdaq fell 0.90%, and the small-cap Russell 2000 index declined 1.33%.

Multiple factors are converging simultaneously. Inflation data came in hot. Wholesale prices rose 6% year-over-year in April, representing the highest upstream inflationary pressure in years. The U.S. debt trajectory continues to deteriorate. A new Fed Chair is inheriting the most complex inflation situation in years. A massive tax cut bill is expected to add trillions of dollars to the national debt over the next decade.

The bond market is shouting loudly, and the stock market is finally starting to listen.

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

Section 2 — Four Reasons for the Yield Surge

Reason 1: Stubbornly Persistent Inflation

April inflation data released on May 15 exceeded market expectations, directly triggering an immediate spike in yields. April wholesale prices rose 6% year-over-year, the highest upstream inflation reading in years, indicating that price pressures are not just at the consumer level but are transmitting upward throughout the supply chain.

Since September 2024, the Federal Reserve has cut interest rates by a cumulative 175 basis points – 100 basis points in the second half of 2024, and another 75 basis points in the second half of 2025. Typically, long-term yields should follow suit and decline. However, the reality is starkly opposite: the 10-year yield has only fallen by about 35 basis points, while the 30-year yield has not only failed to fall but has surged to 5.2%. Mark Malek, Chief Investment Officer at Siebert Financial, stated in a widely circulated article that this divergence is "unprecedented": "Historical data dating back to 1990 shows that there has never been such an anomalous disconnect between Fed policy and long-term yields."

Current market pricing shows the probability of a rate hike by December 2026 has risen to 48%, compared to just 14% a week earlier. The probability of a rate cut is now below 1%. The bond market's expectation is no longer a "pause in rate cuts," but is beginning to price in a "return to rate hikes."

Reason 2: New Fed Chair Takes Over a Crisis

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

Warsh takes over with U.S. inflation having exceeded the Fed's 2% target for over five consecutive years, energy prices remaining high due to the U.S.-Iran conflict, and the bond market calling for a clear return to fiscal discipline. JPMorgan now expects the Fed to hold rates steady throughout 2026, with the earliest possible 25 basis point rate hike in the third quarter of 2027. During his confirmation hearing, Warsh stated that the Fed needs a "different framework for tackling inflation." His first Federal Open Market Committee (FOMC) meeting is scheduled for June 16-17, and every word he utters will move the markets.

Reason 3: The Escalating U.S. Debt Problem

The U.S. annual fiscal deficit is approximately $2 trillion, and interest payments on the existing debt alone are approaching $1 trillion per year. The Treasury Department estimates it needs to borrow $189 billion in just the second quarter of 2026, $79 billion more than projected just a few months earlier. Actual borrowing in the first quarter of 2026 was $577 billion, with an estimated $671 billion needed in the third quarter.

Every bond issued must find a willing buyer. When market supply exceeds natural demand, the only mechanism to restore balance is higher yields. The International Monetary Fund has warned that the "safe haven premium" on Treasuries – the additional demand they enjoy as the world's safest asset – is fading. As this premium dissipates, yields must rise to compensate for the gap.

Reason 4: The "One Big Beautiful Bill" and Moody's Downgrade

The "One Big Beautiful Bill" (OBBB), signed into law in 2025, permanently extended the tax cuts from Trump's first term and added new tax provisions. The Congressional Budget Office estimates the bill will increase the fiscal deficit by $2.8 trillion over the next decade. If all temporary provisions become 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. S&P had downgraded the U.S. back in 2011, and Fitch followed suit in 2023. Moody's cited the failure of successive administrations to effectively address the rising deficit and interest costs. It is projected that by 2035, federal interest payments will account for 30% of government revenue, up from 18% in 2024 and just 9% in 2021.

A Bank of America survey released on May 19 showed that 62% of global fund managers expect the 30-year Treasury yield to eventually hit 6%, the most bearish consensus on bonds since the end of 1999. The term "bond vigilantes" has re-entered market discourse – a concept coined by Wall Street veteran Ed Yardeni in the 1980s to describe traders who sell bonds to punish fiscal profligacy, driving up yields to force governments to address their fiscal problems. The modern-day "bond vigilantes," as Malek describes, are engaging in "a slow, methodical campaign of pressure."

Educational Note: A yield curve is a graph showing the relationship between yields on government bonds of different maturities. When long-term yields rise much faster than short-term yields, it's called a "bear steepener." This typically means investors are worried about long-term inflation and fiscal sustainability, even if short-term policy rates are relatively stable.

Section 3 — Why Rising Yields Hurt the Stock Market

Rising yields pressure the stock market through four distinct channels.

Channel 1: The Discounting Effect

The value of every stock is the present value of all its future earnings discounted back to today. The higher the discount rate, the lower the present value. Rising yields directly push up the discount rate, hitting high-growth tech stocks the hardest because a large portion of their value comes from future earnings years down the line. 2022 provides the best reference: the 10-year yield surged from 1.5% to 4.3%, the Nasdaq fell 33%, and Nvidia was cut in half, down over 50%. The vast majority of this loss came from compression of valuation multiples, not deteriorating earnings. The pace in 2026 is more gradual, but the mechanism is identical.

Channel 2: Competition Effect and Equity Risk Premium

When the risk-free 30-year government bond yields 5.2%, stocks must offer a significantly higher return to convince investors to take on additional risk. Currently, the S&P 500's earnings yield is around 4.2%, while the 10-year Treasury yield is 4.6%. This means investors are getting a lower return from stocks than from risk-free government bonds – an unusual and likely unsustainable state. The equity risk premium has been compressed to near zero. History suggests this state will eventually be resolved by falling stock prices or falling yields. Currently, yields are not falling.

Channel 3: The Borrowing Cost Effect

When Treasury yields rise, borrowing costs across the entire economy increase. As of mid-May 2026, the 30-year fixed mortgage rate has risen to between 6.34% and 6.54%. Corporate financing costs increase, and consumer spending on housing, cars, and credit cards is squeezed. The signal from the bond market eventually reaches every household and every corporate balance sheet.

Channel 4: The Strong Dollar and International Capital Flow Effect

Rising U.S. yields attract global capital to dollar-denominated assets, pushing up the value of the U.S. dollar and putting pressure on the overseas earnings of U.S. multinational corporations from a translation perspective. For Asian investors, capital flowing to the U.S. puts pressure on Asian currencies, Real Estate Investment Trusts (REITs), and yield-generating assets. This yield surge is global in scope: the UK 10-year gilt yield broke above 5.1%, Japanese government bond yields rose to 2.71% (the highest since 1997), and German Bund yields also rose in tandem. When global bonds are sold off together, the pressure on stock markets is amplified everywhere.

Educational Note: The equity risk premium is the extra return investors demand from stocks over the risk-free rate. Currently, the S&P 500 earnings yield is about 4.2% versus the 10-year Treasury yield of 4.6%, meaning stocks are technically less attractive than bonds. This compressed premium has historically been a bearish signal for the stock market, as capital tends to flow towards higher-yielding, lower-risk assets.

Section 4 — Impact on Different Types of Investors

Stock Investors

The environment is more unfavorable for high-valuation growth stocks. Banks, insurance companies, and value-oriented cyclical stocks tend to perform relatively better in a rising yield environment, as wider net interest margins benefit financial stocks. Tech stocks, real estate investment trusts, and utility stocks face the most pressure.

Bond Investors

Should note: short-term bonds currently offer attractive yields near 4% to 4.5% with lower price volatility risk. Most analysts favor intermediate-term bonds with maturities of 5 to 10 years, viewing them as the best balance between yield and risk management. For 20- to 30-year long-term bonds, if yields continue to rise, the downside price risk is the greatest.

Income Investors

Are experiencing the most attractive fixed-income environment in over a decade. The 10-year Treasury yield at 4.6% provides a tangible and substantial fixed return. Investment-grade corporate bonds offer a spread over Treasuries, providing even richer returns. For investors who hold to maturity, locking in current yield levels is far more attractive than any opportunity available in 2020 or 2021.

Section 5 — Key Developments to Watch

Warsh's First FOMC Meeting, June 16-17. This is the most important near-term event. Any statement regarding his policy direction – whether he tolerates inflation or leans towards tightening – will have a significant impact on both the bond and stock markets.

U.S. Inflation Data. Monthly CPI and PCE releases will determine whether rate hike expectations strengthen further. April wholesale prices have already risen 6%, indicating upstream pressures have not eased.

U.S. Treasury Bond Auction Results. Weak demand at auctions would signal a persistent imbalance between supply and demand, further reinforcing upward pressure on yields.

The 30-Year Yield Approaching 6%. Ian Lyngen, Head of Rates Strategy at BMO, previously stated that if the 30-year yield sustainably holds above 5.25%, it would trigger a "more lasting correction" in stock valuations. The 30-year yield is currently at 5.2%. Bank of America's consensus forecast target is 6%. The tipping point for a structural valuation repricing in the stock market is drawing near.

Framework for Positioning in the Current Environment:

Stock Investors: Consider a measured rotation from long-duration growth stocks towards value stocks, financials, and sectors with robust current earnings.

Bond Investors: Favor intermediate-term bonds and high-quality investment-grade credit over long-term government bonds.

Income Investors: Current yield levels represent a rare opportunity to lock in attractive income streams, the best seen in over a decade.

The equity risk premium is near zero. The 30-year yield is at its highest since 2007. A new Fed Chair inherits the inflation problem. Bond vigilantes are back. The message from the bond market is clear: the era of cheap government borrowing is over. Whether the stock market can digest this reality smoothly, or whether some link ultimately breaks, will be the core issue facing markets in the second half of 2026.

The above investment views are quoted from a BIT guest analyst and do not represent the official stance of BIT.

BIT (formerly Matrixport) US stock business has surpassed $200 million in Assets Under Management (AUM) since its launch in February 2026. Driven by AI, the US stock market continues to attract global investors. Leveraging over 7 years of institutional service experience and accumulated compliance licenses, BIT has successfully bridged the gap between digital assets and traditional finance, helping investors quickly capture investment opportunities.

Data Sources

CNBC, "30-Year Treasury Yield Breaks Above 5.19%, Highest Since Before Financial Crisis," May 19, 2026. CNN Business, "30-Year US Treasury Yield Hits Highest Level Since 2007," May 19, 2026. Federal Reserve FRED Database, 10-Year Treasury Constant Maturity Rate, May 18, 2026. TheStreet, Market Day Diary, May 19 & May 15, 2026. CNBC, "Kevin Warsh Confirmed as New Federal Reserve Chair," May 13, 2026. Yahoo Finance, "Warsh Confirmed as New Fed Chair Amid Rising Inflation," May 2026. JPMorgan Global Research, "Next Moves for the Federal Reserve," April 2026. Fortune Magazine, "The Bond Market Is Shouting," May 2026. HeyGotrade, "10-Year Treasury at 4.6%: How Rising Yields Are Reshaping the Stock Market in 2026," May 2026. Mercer Media, "30-Year Treasury Yield Breaks Above 5.1%," May 2026. Allianz Global Investors, Analysis of Moody's Downgrade, 2025. Fidelity Investments, US Credit Rating Downgrade, May 2025. Wikipedia, Entry for "One Big Beautiful Bill". Price, "Impact of US Tax Bill on Economy and Bond Market," July 2025. Bank of America Asset Management, "Impact of Interest Rate Changes on Bond Markets," April 2026.
Data as of May 19, 2026.

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