Chip Stocks Slide as Hyperscalers Rally

Semiconductor index falls 3.1% while Nasdaq-100 rises 0.9% after the midterm election results.

Updated on Nov. 5, 2026 in Semiconductors

Isometric editorial illustration of a row of matte gunmetal server cabinets, one pulled forward and exhaling a faint column of vapor, in slate blue and teal. — Investors shifted money from chipmakers to hyperscale cloud platforms on November 4, 2026, as the Philadelphia Semiconductor Index fell 3.1% after midterm results. AI Illustration. Upload story photo >

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The Philadelphia Semiconductor Index fell about 3.1% on November 4, 2026, while the Nasdaq-100 climbed roughly 0.9%. Hyperscaler platforms including Apple, Amazon and Microsoft carried most of the market gains.

Why it matters

Investors bet that heavier regulatory scrutiny under a Democratic Congress would restrict the construction of new data centers, shifting money away from chipmakers. The hyperscaler group added more than $750 billion in market value following the election results.

The Philadelphia Semiconductor Index closed at 10,268.65 after a roughly 3.1% decline, while the VanEck Semiconductor ETF (SMH) and iShares Semiconductor ETF (SOXX) each lost around 3%. Nvidia, Broadcom and Micron were among the main drags on the index, and the source does not address the underlying changes in chip demand.

The players

Nvidia

Nvidia is a U.S. chip designer whose graphics processors are central to AI data center buildout, and it was among the main drags on the semiconductor index.

Apple

Apple is a U.S. technology company that gained nearly 7% and closed at a record on the day, leading the hyperscaler rally.

Amazon

Amazon is a U.S. cloud and e-commerce giant whose shares rose 7.4% to a three-month high during the session.

The details

Hyperscaler stocks rose sharply on November 4, with Amazon gaining 7.4% to a three-month high and Apple climbing nearly 7% to close at a record. Microsoft, Alphabet and Meta posted gains ranging from 2% to 6.3%. Chipmakers, including Nvidia, Broadcom and Micron, weighed on the semiconductor index.

Earlier in 2026: Philadelphia Semiconductor Index posted record quarterly gains.
November 4, 2026: Nasdaq-100 rose and the semiconductor index fell following the midterm election results.

The Tech Race

The November 4 sell-off in the Philadelphia Semiconductor Index reverses the momentum of its record quarterly gains earlier in 2026. The divergence from hyperscaler stocks, which rallied on the same day, signals investors are rotating within the tech sector based on expected data center regulation.

Investors holding semiconductor ETFs such as SMH or SOXX saw declines of around 3% on the day, while those weighted toward hyperscaler platforms gained. The shift in market value could affect retirement account balances and index fund returns for U.S. savers.

The takeaway

Sector rotation within tech can move major indexes in opposite directions on the same day, so investors should review how their holdings are split between chipmakers and platform companies. Diversification across both segments can reduce exposure to policy-driven swings.