Corporate Bond Premiums Surge to Levels Last Seen During 2025 Tariff Shock

Yields on global corporate debt have surged, pushing premiums to levels not seen since May 2025, a Bloomberg gauge shows.

The tension was evident across Asian fixed-income and equity markets on Friday. Spreads on investment-grade Asian dollar bonds expanded to their broadest since July, even as major regional stock benchmarks moved lower.

Risk Appetite for Corporate Bonds Falls Sharply

Premiums on corporate debt attained as much as 129 basis points, as anxieties mounted over the ability to service debt taken on for artificial intelligence initiatives. Escalating geopolitical instability further dampened risk appetite, steering capital into safer instruments.

Credit markets in the region mirrored the international upturn. Dealers indicated that regional credit-default swaps (CDS) gapped wider by approximately 1.5 basis points, touching 78 at the Friday market open.

A credit-default swap functions essentially as default insurance, so an increase in its cost reflects a greater degree of perceived risk among investors.

Among the most notable movements were those seen in Chinese bonds. Technology spreads in the country were 3 to 5 basis points broader, and its investment-grade spreads increased by up to 5 basis points. For context, Indian investment-grade and Korean debt saw their spreads widen by up to 3 basis points.

Investors pursuing security pivoted towards US sovereign debt. Treasury securities rallied across the full maturity, posting their strongest session in over two years.

There was also a surge into Treasury futures as participants liquidated negative bets and hedged short exposure. Equity markets in the region faced a comparable degree of pressure on Friday.

Asian Equity Markets Continue to Weaken

The Nikkei 225 in Japan dropped 1.72% from its prior settlement to 61,825.26 by late morning in Tokyo. South Korea's KOSPI recorded a more pronounced loss, declining 1.97% to 5,424.96 by late morning in Seoul.

The CSI 300 in China was down a comparatively smaller 0.70% at 4,008.12 in morning action, yet it hit 3,958.14 earlier during the session, a new trough for the index in 52 weeks.

That weakest point arrived one day after the benchmark had entered bear-market territory, a descent that extended across ten consecutive weeks. A significant part of the pressure on equities and credit is tied to anxiety over how firms are financing their AI investments.

Lending Anxiety Rooted in AI Financing

Bloomberg published that financial markets are worried returns from AI spending funded by debt will fail to arrive fast enough.

A Bloomberg Macro View assessment in July flagged the accelerating pace of AI-linked debt issuance. The analysis cautioned that a contest for capital would push yields higher and make credit spreads broader. Those wider spreads subsequently increase the expense of fresh borrowing for firms erecting AI infrastructure.

This week, Fidelity's Jurrien Timmer contended that the potential for an AI bubble is centered on debt. At that juncture, the yield on CoreWeave's bonds had passed 15%.

The previous occasion spreads reached this breadth was prompted by tariffs. Once the United States introduced extensive import levies on April 2, 2025, credit spreads gushed wider abruptly.

S&P Global reported that US investment-grade credit spreads vaulted from 82 to 102 basis points by April 7. A 90-day halt on the tariffs was enacted on April 9, after which spreads relaxed to 89 basis points by April 28.

Despite the subsequent relaxation, spreads remained comfortably above the 60 to 70 basis-point nadirs observed in late 2024 and early 2025.

From the perspective of stock investors, the expansion of spreads constitutes a portent. Katie Stockton of Fairlead has counted increasing credit spreads among the indicators that might worsen the equity selloff. The readings from Friday demonstrate that this indicator has been activated.

Investment Community Divided Over AI's Market Impact

High-profile investors are split on the validity of the AI-related anxiety that underpins this market movement.

Ken Griffin of Citadel cautioned that artificial intelligence is almost certainly experiencing a bubble. In contrast, Blackstone President Jon Gray characterized demand in the sector as approaching parabolic growth.

Tom Lee, Chairman of BitMine, likewise forecasts an alleviation of pressure. His argument is that declining interest rates and an overcrowded short side in technology equities suggest the AI selloff is drawing to a close.

The suspension of tariffs in 2025 provided credit markets with a distinct impetus for recovery. On this occasion, a market rebound may be contingent upon AI expenditures beginning to demonstrate actual returns.