Why US Treasury Yields Are Rising: The Ultimate Guide for Investors
The Eternal Seesaw: Bond Yields vs. Bond Prices
Before diving into why US Treasury yields are rising, there is one golden rule you must etch into your mind: the seesaw principle that "when bond yields go up, bond prices go down." Let's break this concept down with a simple story.
Imagine you lent $10,000 to the US government. In return, the government gives you an IOU promising to pay you 3% interest ($300) every year. This IOU is essentially a government bond. Satisfied with your reliable $300 annual income, you tucked this IOU away safely in your vault.
A year later, however, the economic landscape shifts drastically. Commercial bank interest rates rise, and the US government finds itself needing more money. Consequently, the government issues new IOUs, announcing, "From now on, anyone who lends us money will receive 5% interest ($500) annually."
Suddenly, you need cash urgently and are forced to sell your "old 3% IOU" on the open market. Will anyone buy it from you at the original price of $10,000? Of course not. Why would anyone be foolish enough to buy your old IOU paying $300 a year for the exact same price when they could just go to the government and buy a newly issued one paying $500 a year?
Ultimately, to find a buyer, you have no choice but to bite the bullet and sell your IOU at a steep discount from your original $10,000 principal. In short, as the market's new interest rate (bond yield) rose from 3% to 5%, the trading value of your existing bond (bond price) fell below $10,000. This is the inverse relationship where interest rates and bond prices move in opposite directions.
The Great Shift: From the 0.5% Era to the 5% Era
Understanding this principle makes it clear just how dramatic today's market conditions really are. Just a few years ago, during the 2020 pandemic crisis, the US Federal Reserve aggressively slashed its benchmark interest rate to near zero to save the economy. At the time, the yield on the 10-year US Treasury note plummeted to the 0.5% range.
With the cost of borrowing money practically free, a massive flood of capital poured into stocks, real estate, and crypto markets, creating a historic asset boom.
But the party that seemed endless is now over. In the second half of 2023, the 10-year Treasury yield surged past the psychological threshold of 5%. Fast forward to today, as we navigate through the latter half of 2026, those yields have stubbornly remained at elevated levels. Even as the Federal Reserve has adjusted its stance in response to shifting economic winds, the 10-year yield continues to hover persistently around the 4% range.
This profound shift in financial gravity, with rates surging nearly tenfold from their pandemic lows, is the primary force crushing the value of all asset markets today. So, why are US interest rates rising so relentlessly? At the core of this phenomenon lie three massive storms.
Part 2: Why Do US Interest Rates Keep Rising? The 3 Core Drivers
The reason US Treasury yields have stayed so high for so long cannot be explained by a single factor. It is essentially a perfect storm created by the resilience of the real economy, the stubbornness of the central bank, and a massive debt spree by the government. Let's dissect these causes one by one.
1. A "Monster" US Economy Erasing the Justification for Rate Cuts
Typically, a prolonged high-interest-rate environment leads to a recession, as businesses cut investments and consumers close their wallets. Once the economy slows, the central bank usually steps in to lower rates and pump money back into the system. This is the standard economic cycle we learn in textbooks.
However, the current US economy is completely shattering this formula.
While Europe's powerhouse, Germany, worries about negative growth, and the world's factory, China, struggles with a real estate slump, the US economy has posted phenomenal quarterly GDP growth rates that often exceed 3% annualized. Crucially, consumer spending—which accounts for 70% of the US economy—remains unbreakable.
Let's look at a concrete example. The first thing that shocks tourists visiting Los Angeles or New York is the brutal cost of living. A standard hamburger combo meal, complete with tax and tip, easily tops $20 (well over 25,000 to 30,000 KRW). What's even more surprising is that Americans are still lining up outside restaurants to eat those expensive burgers.
The US unemployment rate has long hovered around the 4% mark, effectively maintaining a state of "full employment." With jobs aplenty, people aren't worried about layoffs, and switching jobs often comes with a pay raise. With money consistently hitting their bank accounts, they are more than willing to swipe their credit cards for a $20 burger.
When the economy is running red-hot and companies are raking in profits, why would investors tie up their money in "safe-haven" US Treasuries that only guarantee the principal and a modest yield? Instead, investors sell off their bonds and move their capital into stocks or other riskier assets.
As explained in Part 1, when people sell off bonds, bond prices drop and yields skyrocket. Ironically, the simple fact that the US economy is doing too well has become the most powerful fuel driving Treasury yields higher.
2. "Sticky" Inflation and a Stubborn Federal Reserve
The second culprit is the stubbornly persistent inflation rate. In 2022, the US Consumer Price Index (CPI) skyrocketed by a staggering 9.1% year-over-year, marking the worst inflation in 40 years. Alarmed, the Federal Reserve (Fed) deployed a drastic remedy, aggressively hiking its benchmark interest rate from near zero to over 5% in record time.
Fortunately, the bitter medicine worked. The CPI, which had breached 9%, quickly retreated to the 3% range in just about a year. Market participants cheered, thinking, "Inflation is finally under control! The Fed will start cutting rates soon!"
However, those hopes were shattered. Inflation stalled around the 3% mark and refused to budge—a phenomenon known as "sticky inflation."
Core components of the inflation index, particularly housing and service sectors, showed little sign of cooling down. Costs for haircuts, car repairs, and apartment rent have a characteristic tendency to stay put once they go up.
Fed Chair Jerome Powell poured cold water on the market's premature hopes for a rate cut, declaring that the central bank would keep rates "higher for longer" until inflation successfully reached its 2% target.
Just as the hardest part of a marathon is the "last mile" right before the finish line, bringing inflation down from 3% to 2% is proving to be a long, painful stretch. With hopes for aggressive benchmark rate cuts fading, the 10-year Treasury yield—which preemptively reflects the market's outlook on future interest rates—has no choice but to remain sky-high.
3. A Supply Bomb Crushing the Bond Market (Fiscal Deficit)
The final cause is a rather structural and severe issue: the reckless fiscal management and astronomical national debt of the US government, including the Biden administration.
The US is currently running a massive fiscal deficit, spending far more money than it collects in taxes. Medicare expenses driven by an aging population are snowballing, and the government is handing out hundreds of billions of dollars in subsidies to build domestic semiconductor and green energy plants. On top of that, it has to shoulder the heavy military costs of supporting conflicts globally.
So, how does the US Treasury fill this massive financial hole? By printing and selling dollar IOUs—namely, Treasury bonds. Currently, the total US national debt has surpassed a staggering $34 trillion (an unfathomable sum of roughly 45,000 trillion KRW).
The bigger issue is that the government is caught in a vicious cycle where it must borrow more money just to pay the interest on its existing debt.
Every quarter, the US Treasury announces plans to issue hundreds of billions of dollars in new bonds. Now, think back to the most fundamental principle of economics: the law of supply and demand.
What happens if a million boxes of apples are suddenly dumped onto a fall fruit market? The price of apples drops to practically nothing. The bond market works the exact same way.
When the US government floods the market with a colossal supply of new bonds to raise cash, the resulting oversupply causes bond prices to crash. And, as highlighted in Part 1, a crash in bond prices inevitably means a spike in bond yields. This phenomenon—where the government's near-infinite issuance of bonds forcefully drives up market interest rates—is known in economics as the "crowding-out effect," and it is one of the darkest shadows looming over the US market today.
Part 3: Conclusion – Navigating the Turbulent Waves of Interest Rates (Investment Strategy)
So far, we have taken a deep dive into the three fundamental reasons why US Treasury yields are rising. How, then, should we protect and grow our assets amidst these daunting waves of high interest rates?
A Cold Snap for Tech and Growth Stocks: Separating the Wheat from the Chaff
The first sectors to take a hit are tech stocks and growth-oriented startups. The stock prices of these companies thrive on the "dreams" of future earnings—how much money they will make 10 or 20 years down the line, rather than their current profits.
However, when Treasury yields approach 5%, it's fatal for them. If a risk-free government bond guarantees a 5% annual return, the mathematically discounted value of future profits from a risky, innovative company is bound to plummet.
Furthermore, for companies that need to borrow massive amounts of money from banks to build AI data centers or new factories, high interest rates act like a noose, causing their interest expenses to snowball.
Therefore, stock investors must boldly drop "zombie companies" that merely use AI as a buzzword or survive solely on debt. Instead, you should narrow down your portfolio to ultra-blue-chip, cash-rich companies like Microsoft, Google, and Apple. These giants generate massive cash flow from their core operations regardless of interest rate hikes and are actually raking in hefty interest income from their surplus cash sitting in bank accounts.
The Real Estate Ice Age and New Opportunities
The rise in Treasury yields extends beyond the stock market to freeze the real economy, particularly the real estate sector. The 30-year US mortgage rate moves in almost the exact same trajectory as the 10-year Treasury yield. Mortgage rates, once hovering in the 3% range, surged to near 8% at one point.
To put it in perspective, if you took out a loan to buy a $500,000 house in the past, you might have paid $1,500 a month in interest; today, that figure doubles to $3,000.
With monthly interest burdens doubling, people don't dare to buy homes, leading to a steep cliff in housing transactions. With a slight time lag, this acts as a strong downward pressure on the Korean real estate market as well. Stretching your finances to the limit to make highly leveraged real estate investments (what Koreans call Yeong-kkeul) is more dangerous now than ever.
Investing in Treasuries: A Crisis or an Opportunity?
However, if you shift your perspective slightly, the current situation could present a once-in-a-lifetime opportunity. As long as the US government—arguably the safest entity on earth—doesn't collapse, you can invest in a 100% principal-guaranteed asset while securing a locked-in annual return of 4.5% to 5%.
This is a fantastic investment alternative that was unimaginable during the zero-interest-rate era. What happens if the US economy eventually slows down over the next few years and the Fed enters a definitive rate-cutting cycle?
When interest rates go down, bond prices go up. In other words, buying bonds now while yields are high not only secures solid interest income but also sets up a golden two-pronged strategy: you can sell the bonds at a premium when rates fall, allowing you to reap massive capital gains simultaneously.
Closing Thoughts: Let Go of Impatience and Ride the Macroeconomic Waves
The US Treasury yield is the pulse of the global economy and the most critical indicator determining the gravity of capital markets. Rather than riding the emotional rollercoaster of daily red and green lights on your stock trading app, make it a habit to check the trajectory of the "10-year US Treasury yield" yourself through platforms like FRED (Federal Reserve Economic Data) or Naver Finance.
If you can read the underlying story behind why yields are rising—whether it's due to a robust economy, spiking inflation, or a flood of Treasury auctions—you will become a truly smart investor.
You'll be the one scooping up stocks at the bottom when others are dumping them in a panic, and safely sheltering your assets in bonds when others are euphorically over-leveraging themselves. I root for your precious assets to grow even stronger amidst these turbulent macroeconomic waves.
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