Wall Street Tech Sector Rotation: "Magnificent Seven" Lose $2.3 Trillion in Market Value

Source: Global Market Report

This month, the combined market capitalization of the seven major US tech giants evaporated by over $2.3 trillion, as the market saw a dramatic sector rotation: Funds have been exiting the tech behemoths who spent hundreds of billions building artificial intelligence infrastructure, and have instead flooded into chip companies that benefit from these massive procurement orders.

The “Magnificent Seven” includes Nvidia, Meta, Apple, Microsoft, Alphabet (Google’s parent company), Amazon, and Tesla. This group has collectively fallen 10% in June, on track for its worst monthly performance in more than a year; overall, it is down 3% for the first half of this year.

Investors are increasingly questioning whether the large-scale investments by big cloud service providers like Meta, Amazon, Microsoft, and Google can turn into sufficiently robust profits to support the substantial share price gains of the past few years. In addition, the costs of memory chips and power equipment continue to climb, further squeezing profit margins.

In stark contrast, the Philadelphia Semiconductor Index, which tracks US chip companies, has surged 93% in the first half of this year, poised to post its best annual return since the peak of the internet bubble in 1999. The persistent strong demand for hardware from cloud service providers, coupled with tight chip supply, has directly driven up the profits of chip companies.

Simone Lagazzi, global equity portfolio manager at asset management firm Algebris, said: “Other than a small position in Nvidia, we haven’t allocated to any of the Magnificent Seven stocks. The market is questioning whether and when these massive expenditures will turn into a rapid acceleration in revenue growth.”

He added: “But we have heavily invested in companies that benefit from this wave of capital expenditures, covering compute infrastructure, liquid cooling equipment, cables, and connector tracks. These types of companies are delivering astonishing growth. Although the rally won’t last forever, it is difficult to ignore these names at the moment.”

Chip and memory segments have been among the strongest performers in the S&P 500 this year. Western Digital’s share price has soared around 760%, and Micron, Intel, Western Digital, and Seagate Technology have each more than doubled; the market expects the supply shortage of memory chips to continue until 2028.

TSMC, the global leader in advanced wafer foundry, has seen its share price rise about 50% so far this year, pushing its market value past $2 trillion; its core equipment supplier, Dutch company ASML, has climbed 60% over the same period.

Over the past years, the “Magnificent Seven” accounted for the vast majority of returns in both the US and global stock markets. From early 2023 to early 2026, the combined market capitalization of these seven companies grew by $15 trillion; at one point last year, their joint market value accounted for more than one-third of the S&P 500’s total market cap.

But the market is concerned that the annual AI infrastructure investments amounting to hundreds of billions by some giants are difficult to monetize, triggering a shakeup in Wall Street's tech stock trade logic: Funds are quickly rotating towards industrial chain companies poised to benefit from this wave of capital expenditures.

Vincenzo Vedda, Chief Investment Officer at DWS, described this as a switch in market leadership: funds are flowing from the software and internet-heavy “Magnificent Seven” of the past few years into the semiconductor segment.

Vincent Mortier, Chief Investment Officer at Allianz Global Investors, commented: “The biggest question right now is whether these large tech companies can turn their massive AI investments into profits on a large scale. Frankly, there’s no verdict yet, so caution is warranted.”

He added: “Regardless of whether these AI investments ultimately become profitable, upstream core component suppliers will continue to benefit.”

Looking at the broader market, so far this year, apart from Alphabet, the other six “Magnificent Seven” stocks have underperformed the S&P 500. This is a sharp reversal from years of index outperformance; Microsoft, Meta, and Tesla have all seen double-digit share price drops.

Giles Parkinson, Equities Head at investment firm TrinityBridge, said: “The differences among the Seven are now far greater than their similarities.” He also noted that the cloud compute giants are the core group weakening in this cycle, “because they are on the spending side, and the windfall is all going to the hardware companies.”

Doubts are growing about when AI investments will pay off: Whether in core software and cloud businesses, or through massive investments in OpenAI and Anthropic, uncertainty persists; both AI startups have signaled IPO intentions and could reach trillion-dollar valuations if successfully listed.

In recent weeks, several early large-scale AI adopters—Walmart, Uber, Meta, and others—have started reducing staff access to AI tools and adjusting deployment strategies after receiving hefty AI bills. This has raised concerns among some investors that customers may opt for lower-cost large models or cut AI procurement budgets, potentially impacting the AI revenues of large tech firms.

Nevertheless, major US hyperscale cloud providers are still moving ahead, planning to invest close to $1 trillion to build data centers to meet the current overwhelming AI compute demand. Firms like Meta and Microsoft have issued warnings that memory chip prices are skyrocketing, with other component costs also rising, further driving up overall investment costs and making new compute facility construction increasingly expensive.

Last week, Apple announced a price hike of about 20% for MacBook laptops and iPad tablets, citing “unprecedented pressure” from rising memory chip prices. Microsoft also raised its Xbox game console prices and warned that memory chip costs have doubled in just a few months, with another doubling by the end of 2027 potentially in store.