U.S.-China Financial Dance

U.S.-China Financial Dance

The economic relationship between the United States and China is one of the most closely watched and influential financial dynamics in the world. It’s not just about shipping containers full of electronics or soybeans—it’s also about interest rates, currency policy, and the enormous scale of U.S. government debt.

At the center of this dance is a fascinating loop: the U.S. buys more from China than it sells, sending dollars overseas. China, in turn, recycles many of those dollars back into U.S. Treasuries. The result? China helps keep U.S. interest rates lower, while supporting its own export-driven economy by holding down the value of the yuan.

Let’s break this down and explore what could happen if China changed course—because the ripple effects would be felt far beyond Beijing and Washington.

The Scale of Trade

As of the most recent full-year data, U.S. goods and services trade with China totaled approximately $575 billion. The U.S. imported over $427 billion in goods from China and exported about $148 billion, creating a trade deficit of nearly $279 billion.

This means China ends up holding a huge volume of U.S. dollars—dollars it doesn’t necessarily want to flood into its domestic currency market, where they could drive up the yuan’s value and hurt export competitiveness.

Instead, it often uses those dollars to buy U.S. Treasury securities, making China one of the largest foreign holders of U.S. debt—owning around $775 billion in Treasuries as of early 2025, or roughly 10–12% of the total held by foreign investors.

How Treasury Purchases Support Currency Policy

When China buys Treasuries, it does a few things all at once:

• It recycles dollars into a safe, liquid asset.

• It avoids converting too many dollars into yuan, which would strengthen the yuan.

• It supports demand for U.S. government debt, helping to keep Treasury prices high and interest rates low.

In effect, this stabilizes the yuan and keeps Chinese exports attractive to global buyers—especially the U.S.

But what if China started doing something different?

Hypothetical Scenarios: What Happens if China Changes Its Treasury Position?

Let’s examine three distinct situations:

Scenario 1: China Increases Treasury Purchases

• U.S. Impact: Treasury prices rise, yields fall. Lower interest rates benefit U.S. borrowers, from homeowners to Uncle Sam.

• China Impact: Yuan stays weaker, exports remain competitive, and the trade imbalance persists.

• Market View: Calming. A continued vote of confidence in U.S. debt markets and global financial stability.

Scenario 2: China Reduces Treasury Purchases

• U.S. Impact: Treasury demand falls. Prices drop, interest rates rise. Borrowing costs increase for consumers and the government.

• China Impact: More dollars converted into yuan, strengthening its value. That could hurt Chinese exports.

• Market View: Potentially disruptive. Could signal shifts in China’s policy or concerns about U.S. fiscal discipline.

Scenario 3: China Sells Treasuries to Defend the Yuan

In times of economic stress or capital flight, China may sell Treasuries to buy yuan on the open market.

• U.S. Impact: Sudden sell-off could spike Treasury yields, hurt bond prices, and inject volatility into global markets.

• China Impact: Yuan may stabilize short-term, but at the cost of reserves and market confidence.

• Market View: Risk-off. Investors might flee to other safe havens or raise concern about a brewing financial crisis.

Summary Table

Why This Matters to US investors and borrowers 

For individual investors, this U.S.-China feedback loop affects more than just trade policy headlines. When China buys Treasuries, it helps keep borrowing costs low in the U.S., supporting consumer credit, mortgages, and even equity valuations.

Conversely, a slowdown in Chinese Treasury buying—or worse, outright selling—could place upward pressure on interest rates, hurt bond portfolios, and increase the cost of capital for U.S. companies.

Currency policy also matters. A stronger yuan could mark a major shift in global trade dynamics, possibly giving the U.S. manufacturing base a leg up—but it might also signal weakness in China’s internal economy or rising geopolitical tensions.

Final Thoughts

Trade and finance are tightly interwoven between the U.S. and China. The billions in goods traded annually form the visible part of the iceberg—but underneath lies a complex world of capital flows, interest rate dynamics, and currency maneuvering.

Sources:

U.S. Census Bureau – Foreign Trade: China
https://www.census.gov/foreign-trade/balance/c5700.html

U.S. Department of the Treasury – Major Foreign Holders of Treasury Securities
https://home.treasury.gov/data/treasury-international-capital-tic-system

Council on Foreign Relations (CFR) – China’s Currency Policy
https://www.cfr.org/backgrounder/chinas-currency-policy

Brookings Institution – What Happens If China Stops Buying U.S. Debt?
https://www.brookings.edu

The Wall Street Journal – China’s Grip on U.S. Bonds Is Still a Market Force
https://www.wsj.com

The Atlantic Council – U.S.–China Economic Interdependence
https://www.atlanticcouncil.org

Evan R. Guido is the Founder of Aksala Wealth Advisors LLC, a 2018 Forbes Next-Gen Advisors List Member, and Financial Professional at Avantax Investment Services^SM. Evan heads a team of retirement transition strategists for clients who consider themselves the “Millionaire Next Door.” He can be reached at 941-500-5122 or eguido@aksalawealth.com.   Read more of his insights at https://finance.heraldtribune.com/category/ask-guido/. Securities offered through Avantax Investment Services^SM, Member FINRA, SIPC.  Investment advisory services offered through Avantax Advisory Services^SM, Insurance services offered through an Avantax affiliated insurance agency.  6260 Lake Osprey Dr. Lakewood Ranch, FL 34240.  The views and opinions presented in this article are those of Evan R. Guido and not of Avantax Wealth Management^® or its subsidiaries.  These opinions are based on Evan R. Guido observations and research and are not intended to predict or depict performance of any investment.  These views are as of the close of business on 6US-/5/2025 and are subject to change based on subsequent developments.  Information is based on sources believed to be reliable; however, their accuracy or completeness cannot be guaranteed. These views should not be construed as a recommendation to buy or sell any securities.  Past performance does not guarantee future results. The S&P 500 is an index of 500 major, large-cap U.S. corporations. Standard & Poor's is a corporation that rates stocks and corporate and municipal bonds according to risk profiles.  You cannot invest directly in an index.  An investment in a money market fund is not insured or guaranteed by the FDIC or any other government agency.  Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund.  CDs are FDIC insured and offer a fixed rate of return.  They do not necessarily protect against a rising cost of living.  The FDIC insurance on CDs applies in case of insolvency of the bank, but does not protect market value.  Other investments are not insured, and their principal and yield may fluctuate with market conditions. Investments are subject to market risks including the potential loss of principal invested.  Neither diversification nor asset allocation assure or guarantee better performance and cannot eliminate the risk of investment losses. This information is intended to be educational and does not reflect any particular investment or investment needs of any specific investor.  This information is intended to be educational and does not reflect any particular investment or investment needs of any specific investor.