Twenty of the world's most valuable chip stocks experienced a massive sell-off between July 24 and July 28, shedding a combined $1.3 trillion in value. This downturn was led by major players like Nvidia and Micron Technology, which saw their market values drop by $238 billion and $113 billion, respectively. This significant correction in the semiconductor sector, often seen as a bellwether for the AI boom, suggests growing investor caution regarding the long-term sustainability of current AI-related capital expenditures.
Despite this chip sector slump, the broader S&P 500 has demonstrated resilience, with firms on track to post a 29% surge in second-quarter earnings per share, one of the highest on record outside of post-crisis recovery years. However, this strong earnings growth hasn't translated into an equivalent market rally for the S&P 500, which has remained relatively flat since mid-July. This divergence highlights a more disciplined approach by investors, who are now scrutinizing valuations and capital spending, especially in the technology sector.
Investors have shown a clear preference for companies demonstrating efficient use of AI investments. Microsoft, for instance, saw its shares soar 16%, adding nearly $500 billion to its market value, due to robust cloud growth and a commitment to controlled capital spending. In contrast, Meta Platforms experienced an 8% drop after a disappointing revenue forecast and increased spending on AI, leading to its lowest free cash flow in years. This indicates that the market is rewarding companies with clear returns on AI investments while penalizing those with escalating expenses and less immediate payoffs.
The skepticism about AI spending extends to infrastructure companies, as seen with Vertiv, a maker of data center cooling systems. Despite beating earnings expectations, Vertiv's stock dropped 17% on July 29 due to a revenue miss, underscoring investor sensitivity to any signs of slowing AI infrastructure build-out. European markets, with their lower concentration of tech heavyweights, have performed well, with the Stoxx 600 advancing 1.3% and hitting a record, as profits surged 19% across a broader range of sectors including financials, energy, and healthcare.
