The U.S. Debt Question: Should Investors Be Worried?

What rising government debt means for markets and your portfolio

MACRO & POLICY

7/7/20253 min read

1 U.S.A dollar banknotes
1 U.S.A dollar banknotes

The U.S. national debt has surpassed $34 trillion, and it’s rising fast. It’s a number so large it’s almost abstract, until headlines start warning of default, downgrades, and currency collapse.

So as an investor, it’s natural to ask:

“Should I be worried about U.S. debt, and what does it mean for my money?”

Let’s look past the noise and break down what the debt really is, what risks it creates, and how to invest wisely in a world where borrowing never seems to stop.

What Is the U.S. Debt, and Where Does It Come From?

The debt is the cumulative result of all past U.S. budget deficits — when government spending exceeds revenue. It includes:

  • Treasury bonds sold to investors (domestic and foreign)

  • Intragovernmental holdings (e.g. trust funds like Social Security)

Key drivers of debt growth over the last 20 years:

  • 2001 & 2017 tax cuts (without matching spending cuts)

  • Military spending post-9/11

  • 2008 financial crisis stimulus and bailouts

  • COVID-19 pandemic relief programs

  • Rising interest payments on existing debt (especially since 2022)

Is the U.S. Debt Unsustainable?

Here’s the nuance:
The debt isn’t a problem… until it becomes one.

What matters more than the absolute number is:

  • Debt-to-GDP ratio: The U.S. is around ~120% (historically high)

  • Interest as % of federal budget: Rapidly rising, projected to exceed defense spending

  • Confidence: Can the U.S. continue to issue debt cheaply and reliably?

So far, the answer has been yes — because:

  • The U.S. borrows in its own currency

  • It still has the world’s deepest bond market

  • Treasuries are seen as the ultimate safe haven

But that doesn’t mean the risks are zero.

What Are the Long-Term Risks?

If left unchecked, a rising debt burden can lead to:

1. Crowding out

As government borrowing increases, it may push up interest rates, making it more expensive for private companies and individuals to borrow.

2. Reduced fiscal flexibility

Too much existing debt limits how much future stimulus or investment the government can do — especially in recessions or emergencies.

3. Debt spiral

If interest rates stay elevated, the cost of servicing debt can grow faster than GDP — leading to more borrowing just to pay the interest.

4. Currency pressure

Persistent deficits weaken confidence in the dollar, especially if foreign buyers lose appetite for Treasuries.

5. Political gridlock & policy instability

Debt ceiling showdowns and spending debates increase uncertainty and can trigger market volatility (e.g., 2011 and 2023 episodes).

Market Signals: What Are Investors Watching?

  • Bond yields: If the market loses confidence, yields rise. But so far, demand remains strong.

  • Dollar strength: If confidence erodes, capital may flow into gold, other currencies, or real assets.

  • Inflation expectations: High debt can become inflationary if central banks monetize it indirectly.

  • Credit ratings: Downgrades (as seen with S&P in 2011 and Fitch in 2023) shake confidence, even if symbolic.

So far, markets have tolerated rising debt — but rate sensitivity is increasing. The margin for error is shrinking.

What Should Investors Do?

1. Diversify your safe assets

Don’t rely on Treasuries alone for safety. Consider:

  • TIPS (inflation-linked bonds)

  • Short-term bonds or CDs

  • High-quality corporate debt

2. Add real assets

If long-term debt monetization leads to inflation:

  • Gold, commodities, and infrastructure can act as hedges

  • Real estate (especially income-generating) may outperform over time

3. Be smart about equity exposure

High-debt environments favor:

  • Cash-generating, low-leverage companies

  • Value stocks over speculative growth

  • Sectors tied to fiscal spending (e.g., defense, energy, infrastructure)

4. Look internationally

Consider diversifying into:

  • Developed markets with better fiscal positions (e.g., Switzerland, Singapore)

  • Select emerging markets with strong demographics and low debt-to-GDP

5. Monitor debt maturity and issuance trends

Stay informed on:

  • Average maturity of U.S. debt (short-term rollover risk = refinancing risk)

  • Treasury auctions and yield curve movements

  • Political developments around budget and entitlement reform

Final Thought: Don’t Panic, But Don’t Ignore It

“Markets don’t punish high debt, they punish surprise.”

The U.S. debt isn’t about to cause a crisis tomorrow. But it’s creating a slow shift in how capital flows, how portfolios behave, and how governments can respond to shocks.

Smart investors stay ahead of that shift by:

  • Positioning for resilience, not perfection

  • Diversifying exposure across regions and asset types

  • Preparing for volatility instead of fearing it