Tech Earnings Propel Markets to Record Highs Despite Inflation Concerns and Middle East Tensions

The S&P 500 and Nasdaq capped off one of their strongest months in years, with the Nasdaq posting a 15.3% gain in April—its best month since the chaotic Covid-era trading of early 2020. Both indexes closed Thursday at fresh record highs, powered largely by a wave of blockbuster earnings from Big Tech giants. Microsoft, Alphabet, Meta, and Amazon all reported outsized quarterly results buoyed by their artificial-intelligence expansion, though investor sentiment toward individual tech stocks remained fragmented based on how each company plans to spend on AI infrastructure.

The day's action revealed an intriguing bifurcation in market leadership. While the tech sector overall dragged on Thursday, with Nvidia plummeting 4.6%, the real momentum came from an unexpected corner: Caterpillar surged 9.9% after raising its full-year outlook thanks to sizzling demand from AI-focused data centers. The construction-equipment giant's pop propelled the Dow industrials up 1.7%, signaling that AI's economic impact extends well beyond semiconductor and software stocks.

Big Tech earnings revealed sharply different market reactions. Alphabet rocketed 10% after revealing a boom in its cloud business, while Meta tanked more than 8% despite strong results, as investors balked at the company's plans to spend heavily on AI data centers. Microsoft similarly stumbled, dropping 3.9% on cost concerns related to its AI buildout. These divergences suggest investors are increasingly discriminating between companies based on the efficiency of their AI spending, not just their earnings beats.

Underlying the bull run, however, are brewing headwinds. The Federal Reserve's preferred inflation gauge ticked higher in March, driven by energy price spikes from the Iran conflict. First-quarter GDP also came in softer than expected as consumer spending slowed. Oil prices initially jumped after reporting that President Trump would receive briefings on new military options regarding Iran, but ultimately U.S. crude slipped 1.7% to $105.07 a barrel. The central banks—Fed, ECB, and Bank of England—all held rates steady, suggesting a cautious holding pattern as geopolitical risks and inflation cross-currents complicate the economic outlook.