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Magnificent Seven Slump as AI Spending Fears Shift Market Focus to Chipmakers and Japan's Yen Hits 40-Year Low

Magnificent Seven Slump as AI Spending Fears Shift Market Focus to Chipmakers and Japan's Yen Hits 40-Year Low
Markets · 2026
Photo · Eleanor Whitfield for Daily Digest Invest
By Eleanor Whitfield Markets Editor-in-Chief Jul 1, 2026 5 min read

Investors are rethinking the tech trade that has dominated markets for years. The so-called Magnificent Seven—Microsoft, Nvidia, Apple, Amazon, Meta, Alphabet, and Tesla—all saw their stock prices fall in June, as concerns mounted over the hundreds of billions of dollars they've poured into artificial intelligence chips and data centers.

The selloff marks a shift in sentiment. After months of betting that AI spending would eventually pay off, many investors are growing impatient. They're now looking beyond the big spenders to the companies that actually supply the hardware—chipmakers—which are already seeing profits from the boom.

From Spenders to Spend-Ees

The Philadelphia Semiconductor Index, which tracks U.S. chip companies, soared 82% in the second quarter alone. That's because firms like Sandisk, Micron, Intel, Western Digital, and Seagate are directly benefiting from the AI buildout. With demand for memory chips still outstripping supply, prices—and profits—have surged.

Sandisk has risen sevenfold this year, while Micron, Intel, Western Digital, and Seagate have all more than tripled. But this momentum depends on Big Tech continuing to spend. If the AI race has been overinvested in, as the Bank for International Settlements warned last week, the boom could end abruptly—and potentially soon.

For everyday investors, this means the rally in chip stocks is tied to a fragile bet. If tech giants cut back on AI spending, the suppliers that have benefited most could see their shares tumble. It's a reminder that today's winners often rely on tomorrow's spending decisions.

Market Rotation: Out With the Old

The Magnificent Seven have long been the engine of the U.S. stock market, but their influence is waning. Investors are now rotating into other sectors, including banks and industrial firms, as they turn away from tech. This shift could make the broader rally more sustainable, since it's less risky for the market to depend on just a handful of stocks.

If the rotation continues, it could broaden the market's gains beyond tech. That's a positive sign for diversification, but it also means the Magnificent Seven may no longer be the safe bet they once were. For investors, this is a cue to look beyond the usual names and consider how different sectors are positioned.

Japan's Yen Hits 40-Year Low

In a separate but equally significant development, the Japanese yen slumped to 162 against the U.S. dollar—its weakest level since 1986. This comes despite a record $72.5 billion intervention by Japanese authorities in April, when they bought yen to try to push the currency higher. The effort worked temporarily, but the yen has since resumed its slide.

The yen's weakness is largely due to the wide gap between American and Japanese interest rates. Even after the Bank of Japan raised rates to their highest level since 1995 in June, they're still only at 1%—far below the U.S. Federal Reserve's range of 3.5% to 3.75%. That gap encourages global investors to borrow yen cheaply and invest in higher-yielding assets abroad, which pushes the yen down as they sell it to buy foreign currencies.

Japan is now stuck between a rock and a hard place. It could buy more yen or hike interest rates, but neither option is ideal. Buying yen buys time without fixing the underlying problem, while raising rates risks hurting an economy that's still recovering from decades of sluggish growth. The government has more than $1 trillion in foreign-exchange reserves, so it has the firepower to intervene again—but the question is whether it should.

Winners and Losers From a Weak Yen

A weaker yen isn't bad for everyone. Japan's carmakers, for example, could get a $5.8 billion profit boost this year, since their overseas earnings are worth more when converted back into yen. That's one reason the Nikkei 225 has rallied, even as the currency weakens. For context, Japan's factories just posted their best quarter in over a decade, with a PMI of 54.8, as AI chip demand boosted exports.

But households and import-heavy businesses are paying more for fuel, food, and raw materials. That's why a falling currency can push stocks higher even as consumers feel worse off—and why exchange rates rarely hit every part of an economy equally. For investors, this means the yen's slide creates both opportunities and risks, depending on which sectors they're exposed to.

The yen's drop also complicates the Bank of Japan's path forward. With factory output already falling 1.7% as the yen nears 162, policymakers face pressure to act. Yet any move to raise rates could slow the economy, while further intervention may only provide temporary relief. The situation is a reminder that currency markets are driven by fundamentals, not just government action.

For everyday investors, the key takeaway is that markets are shifting. The Magnificent Seven's dominance is fading, chipmakers are riding a wave that could break, and Japan's currency woes highlight the global ripple effects of interest rate differentials. Staying diversified and understanding these dynamics is more important than ever.

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