Is Wall Street becoming too dependent on AI-driven market gains?

• Semiconductor stocks led the rally with the Philadelphia Semiconductor Index up 10.57% for the week, as AI infrastructure spending continues to drive investor enthusiasm and premium valuations
• Falling oil prices provided critical support by easing inflation concerns, allowing the Federal Reserve flexibility, though consumer sentiment dropped to 48.2 (below 49.5 expected) and one-year inflation expectations rose to 3.64%
• Treasury yields remained flat despite stronger-than-expected payrolls (115,000), as wage growth slowed to 3.6% from 3.8%, leaving bond markets in 'wait-and-see' mode on whether growth or inflation will dominate

Market Summary: AI-Driven Rally Pushes Wall Street to Records

Key Market Performance:

US stock indices closed at record highs last week, with the S&P 500 gaining 2.34% and the Nasdaq surging 4.30%. The S&P 500 extended its winning streak to six consecutive weeks. The Philadelphia Semiconductor Index was the standout performer, jumping 10.57% for the week.

Main Drivers:

Three factors fueled the rally according to Deutsche Bank: strong AI-linked earnings, encouraging economic data, and falling oil prices. AI-related companies, particularly chipmakers and data center infrastructure providers, continued attracting premium valuations as investor enthusiasm for AI spending remains robust.

Economic Data:

Mixed signals emerged from April data. Non-farm payrolls exceeded expectations at 115,000, but average hourly earnings decelerated to 3.6% from 3.8%, suggesting easing wage pressures. However, consumer sentiment disappointed at 48.2 versus expectations of 49.5, while the New York Fed's one-year inflation expectations rose to 3.64% from 3.5%.

Bond Market:

Treasury yields remained largely unchanged despite the equity rally. The 10-year yield edged down 0.9 basis points to 4.36%, while the two-year yield rose 1 basis point to 3.89%, reflecting investor uncertainty about the balance between growth and inflation.

Market Implications:

The sharp drop in oil prices provided dual benefits: easing inflation concerns and reducing pressure on the Federal Reserve to maintain restrictive monetary policy. However, the concentration of gains in AI and semiconductor stocks raises questions about market breadth and dependence on a single theme. The challenge ahead is whether record valuations can be sustained without forcing yields materially higher as incoming data is evaluated.