Stocks vs. Bonds in 2026 Q4 and CoreWeave

Stocks vs. Bonds in 2026: Weighing 5% Treasuries and High-Yield AI Credit

AI-related stocks have become much more volatile, and many investors are taking a fresh look at bonds. US Treasuries yield around 5%, and some corporate bonds offer 14% or more. That raises an obvious question: is it time to move out of stocks entirely? A closer look suggests the better answer is careful diversification rather than a wholesale switch.

Why AI Stocks Are Under Pressure

Semiconductor and AI-related stocks led markets for a long stretch on a simple story: rising AI investment would lift chipmakers' profits. Expectations for corporate earnings haven't changed much. What has changed is how much the interest rates used to value those earnings are moving. When long-term Treasury yields rise, future profits are worth less in today's money. That prompts investors to ask whether today's heavy AI spending will earn enough to justify it.

Financing costs add a second source of pressure. The largest cloud and AI infrastructure companies, often called hyperscalers, increasingly fund their expansion by issuing bonds. Higher rates raise the minimum return their projects must earn. A project that pays off comfortably when the company borrows at 3% faces a tougher test when borrowing costs 5% or 6%.

Much of the recent selling reflects global investors rebalancing their portfolios rather than doubting these companies' competitiveness. Investors are trimming AI exposure, and the easiest way to do that is to sell large, highly liquid stocks.

High Yields, Higher Scrutiny: The AI Infrastructure Credit Case

CoreWeave, which buys AI chips and leases computing capacity to large technology firms, shows the trade-offs involved in high-yield bonds. The cost of insuring its debt against default, measured by its credit default swap (CDS) spreads, has risen. Its bonds have traded at yields above 10%, at times reaching 14–15%, levels typically associated with lower-rated borrowers.

The math is instructive. A two-year bond yielding 14% pays roughly 28% in interest over its life. That is a meaningful cushion, provided the company keeps up its payments and any drop in the bond's price before maturity stays within that range. Leasing businesses like this one must buy GPUs up front, while lease revenue arrives over time. Long-term client contracts help, but bond investors focus on whether that incoming cash will arrive in time to replace equipment and repay debt as it comes due.

This reflects a basic difference in outlook. Stock investors focus on growth potential, while bond investors care most about getting repaid and about the company's staying power. Wider CDS spreads signal caution about liquidity and funding rather than a forecast of default.

Why Treasuries Aren't Yet a Simple Safe Haven

A 5% Treasury yield is appealing, and many individual investors have moved into short-term Treasury bonds and exchange-traded funds (ETFs). Still, selling all stocks may be premature, because the reasons yields are rising deserve attention.

The mix of buyers has changed. The Federal Reserve was once a large buyer that paid little attention to price, especially during its rounds of quantitative easing, but it has stepped back. Traditional foreign holders such as China and Japan have also become more cautious buyers. As a result, the term premium, the extra yield investors demand for holding longer-term bonds, has risen steadily since 2023 after years below zero. It covers risks such as inflation, imbalances between supply and demand, and uncertainty about government finances, and it recently hit a 10-year high.

Yields dipped slightly in recent weeks as investors sought safety amid fiscal developments in Europe. Even so, rising government bond issuance and the longer-term US fiscal outlook remain key factors to watch.

Short-Term Versus Long-Term Bonds

Long-term Treasuries remain exposed to these structural forces. Bonds maturing in under five years offer a better balance of risk and reward. Their yields have climbed on expectations that the Fed will raise rates further, with the two-year near 4.7–4.8% and the 10-year around 5.1%.

The advantage comes from duration, meaning how sensitive a bond's price is to interest rate changes. If rates rise another 0.3–0.4 percentage points, the interest payments on shorter bonds can often offset the drop in their price. Longer bonds are far more sensitive to rate changes, so they offer less protection in that scenario.

Balance Over All-or-Nothing

The lesson isn't to abandon stocks but to diversify on purpose. Putting a portion of capital into short- and medium-term bonds can make a portfolio more resilient while keeping exposure to growth. Treasuries remain safer than corporate debt, though not risk-free. Higher-yielding corporate bonds carry a real risk of default. The most reliable guide is your own risk tolerance and goals, not the headline yield.

Next
Next

Why 2027 May Bring a Chill, Not a Burst