Deficit, Inflation, and the New Fed: The Deep Logic Behind US Bond 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 Straight 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 Hit 6%

Section 1 — What Is Happening Right Now

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

Multiple factors are converging simultaneously. Inflation data came in hotter than expected. 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 projected 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 represent the interest rate 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 Rising Yields

Reason 1: Stubbornly Persistent Inflation

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

Since September 2024, the Federal Reserve has cumulatively cut interest rates by 175 basis points – 100 basis points in the second half of 2024, followed by 75 basis points in the second half of 2025. Typically, long-term yields should decline in response. However, reality has been starkly opposite: the 10-year yield has only fallen by about 35 basis points, while the 30-year yield has not only not fallen but has risen, reaching 5.2%. Mark Malek, Chief Investment Officer at Siebert Financial, stated in a widely circulated article that this divergence is "unprecedented": "Historical data going back to 1990 shows no such anomalous disconnect between Fed policy and long-term yields."

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

Reason 2: New Fed Chair Inherits 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, the most contentious 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 as a member of the Fed's Board of Governors.

Upon taking over, Warsh inherits a situation where U.S. inflation has exceeded the Fed's 2% target for over five consecutive years, energy prices remain high due to the U.S.-Iran conflict, and the bond market is 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 addressing inflation." His first scheduled Federal Open Market Committee (FOMC) meeting is set for June 16-17, and every statement he makes will move markets.

Reason 3: The Intensifying U.S. Debt Problem

The annual U.S. fiscal deficit is approximately $2 trillion, and interest payments on the existing debt stock alone are already approaching $1 trillion per year. The Treasury Department estimates it will need to borrow $189 billion in the second quarter of 2026 alone, $79 billion more than projections made just a few months prior. Actual borrowing in the first quarter of 2026 was $577 billion, and borrowing is projected to be $671 billion in the third quarter.

Every bond 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. Once the safe haven premium disappears, yields must rise to compensate for the shortfall.

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

The 'One Big Beautiful Bill' (OBBB), signed into law in 2025, made the tax cuts from Trump's first term permanent and added new cuts. The Congressional Budget Office estimates the bill will increase the fiscal deficit 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 be $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 already downgraded the U.S. in 2011, followed by Fitch in 2023. Moody's cited the failure of successive administrations to effectively address the continuous rise in deficits and interest costs. Interest payments by the federal government are projected to consume 30% of revenue by 2035, 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 veteran Wall Streeter Ed Yardeni in the 1980s to describe traders who punish fiscal profligacy by selling bonds, pushing yields higher to force governments to address their fiscal problems. Today's version of the "bond vigilante," as Malek puts it, involves "a slow, methodical campaign of pressure."

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

Section 3 — Why Rising Yields Impact the Stock Market

Rising yields pressure the stock market through four distinct channels.

Channel 1: The Discounting Effect

The value of every stock equals 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 increase the discount rate, hitting high-growth tech stocks hardest because a large portion of their value comes from future earnings years down the line. 2022 offers 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 damage came from valuation multiple compression, not earnings deterioration. The pace in 2026 is more gradual, but the mechanism is identical.

Channel 2: The Competition Effect & Equity Risk Premium

When the risk-free 30-year government bond yields 5.2%, equities 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 get a lower return from stocks than from risk-free government bonds – an unusual and unsustainable state. The equity risk premium has been compressed to near zero. Historically, this state is resolved either through 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 had risen to between 6.34% and 6.54%. Corporate financing costs rise, and consumer spending on housing, cars, and credit cards is constrained. The bond market's signal ultimately reaches every household and every corporate balance sheet.

Channel 4: The Strong Dollar & International Capital Flow Effect

Rising U.S. yields attract global capital to dollar-denominated assets, pushing up the dollar's exchange rate and putting pressure on the overseas earnings of U.S. multinational corporations when translated back. For Asian investors, capital flowing to the U.S. puts pressure on Asian currencies, Real Estate Investment Trusts (REITs), and yield-oriented assets. This yield surge has a global resonance: the UK 10-year gilt yield broke above 5.1%, Japanese Government Bond (JGB) yields rose to 2.71% (the highest since 1997), and German Bund yields also climbed 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 relative to the risk-free rate. Currently, the S&P 500 earnings yield is around 4.2%, while the 10-year Treasury yield is 4.6%, meaning stocks are technically less attractive than bonds. This state of compressed premium has historically been a leading indicator of weakness in the stock market, as capital tends to flow towards higher-yielding, lower-risk assets.

Section 4 — Impact on Different Types of Investors

Equity 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 because wider net interest margins benefit financials. Technology stocks, REITs, and utilities 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 prefer intermediate-term bonds (5 to 10 years), viewing them as the best balance between yield and risk management. Long-term bonds (20 to 30 years) carry the most downside price risk if yields continue to rise.

Income-Oriented Investors

Are experiencing the most attractive fixed-income environment in over a decade. A 10-year Treasury yield of 4.6% represents significant, real fixed income. Investment-grade corporate bonds offer spreads above 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 signal he gives on policy direction – whether leaning towards tolerating inflation or favoring tightening – will have a major impact on both bond and stock markets.

U.S. Inflation Data. Monthly CPI and PCE data 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 persistent supply-demand imbalances, further reinforcing upward pressure on yields.

The 30-Year Yield Approaching 6%. Ian Lyngen, head of rates at BMO, previously stated that if the 30-year yield sustains above 5.25%, it could trigger a "more enduring correction" in equity 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 revaluation in stock market valuations is approaching.

Framework for Positioning in the Current Environment:

Equity 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 Treasuries.

Income-Oriented Investors: Current yield levels represent the best opportunity to lock in quality income 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 challenge. Bond vigilantes are back. The bond market's message couldn't be clearer: the era of cheap government borrowing is over. Whether the stock market can digest this reality smoothly, or whether something eventually breaks, will be the central issue facing markets in the second half of 2026.

The above investment views are contributed by a special analyst for BIT and do not represent the official position of BIT.

Since the launch of its U.S. stock business in February 2026, BIT's (formerly Matrixport) assets under management (AUM) have exceeded $200 million. Driven by AI, the U.S. stock market continues to attract global investor attention. Leveraging over 7 years of institutional service expertise and accumulated regulatory 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 Money, "30-Year US 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 Amid Rising Inflation," May 2026. JPMorgan Global Research, "Next Steps for the Fed," April 2026. Fortune, "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, Moody's Downgrade Analysis, 2025. Fidelity Investments, US Credit Rating Downgrade, May 2025. Wikipedia, "One Big Beautiful Bill" entry. 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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