The defining feature of the September 21 to September 25 trading week was the widening gap between technology-led equity strength and broader market pressure. The Nasdaq Composite gained 2.06% and the S&P 500 rose 1.21%, even as Treasury yields climbed and oil remained a major inflation risk, while the Russell 2000 fell 0.80%. The result was a market increasingly willing to pay for AI-related growth while remaining cautious about interest-rate-sensitive parts of the economy.

AI Leadership Keeps U.S. Equities Resilient

U.S. markets finished the week with a clear technology bias. The Nasdaq Composite gained 2.06%, compared with a 1.21% rise in the S&P 500 and a 0.28% increase in the Dow Jones Industrial Average. The Russell 2000 moved in the opposite direction, falling 0.80%, highlighting the difference between demand for large-cap technology exposure and the more rate-sensitive smaller-company segment.

Reuters reported that enthusiasm around artificial intelligence remained a major driver, while falling oil prices temporarily eased some inflation concerns. Nasdaq also reached record levels during the week as investors responded to developments involving AI companies and semiconductor demand.

Higher Yields Challenge the Broader Market

The equity rally unfolded against a more difficult fixed-income backdrop. U.S. Treasury yields rose during the week, with the 10-year yield reaching its highest level since 2007 on September 23 after data showed U.S. business activity accelerating sharply. The flash U.S. Composite PMI rose to 58.4 in September, its highest reading since July 2021, reinforcing concerns that stronger economic activity could keep inflation pressures persistent.

The U.S. Dollar Index gained 0.60% in the supplied five-day data. This combination of firmer yields and a stronger dollar helps explain why the market’s gains were concentrated in particular sectors rather than spread evenly across equities. Reuters also reported that global equity funds attracted $44.1 billion during the week, the strongest weekly inflow since early July, as renewed AI optimism and lower oil prices outweighed concerns about rising bond yields.

Asia Outperforms as Semiconductor Momentum Returns

Asia delivered the strongest regional performance in the supplied data. The KOSPI gained 5.44%, while the Nikkei 225 rose 3.82%. The Shanghai Composite increased 0.33%, but the Hang Seng Index declined 0.97%. South Korea’s performance is particularly significant because semiconductor exports are a major transmission channel between global AI investment and the domestic equity market. Reuters reported that South Korean semiconductor shipments surged 259.4% year over year in early September, supporting the technology-led rally across the region.

Japan also benefited from renewed technology and growth-sector demand, although currency and monetary-policy considerations remained important. The divergence between the Hang Seng and mainland Chinese market suggests that regional performance was not simply a broad China-and-Asia rally, but reflected differences in sector composition and investor exposure.

Europe and Israel Reflect a More Uneven Risk Environment

European performance was modestly positive overall in the supplied five-day figures. MSCI Europe fell 1.04%, while the FTSE 100 gained 0.34%, CAC 40 rose 0.16% and DAX increased 0.41%. The mixed results came as European markets continued to balance higher borrowing costs, energy risks and renewed interest in technology shares. Reuters reported that European equities benefited early in the week from falling oil prices, while technology and banking shares helped lift the broader regional market.

In Israel, the TA-35 fell 1.12%, while the broader TA-125 gained 0.25% in the supplied five-day data. The divergence indicates that performance within the Tel Aviv market was uneven rather than reflecting a uniform move across Israeli equities. The supplied index data do not establish whether banks, defense companies, institutional flows or another specific sector drove the difference, so attributing the weekly result to one group would go beyond the available evidence.

The coming week brings a more direct test of the market’s ability to absorb strong growth without a renewed rate shock. U.S. employment data and inflation indicators are scheduled to provide fresh evidence on the Federal Reserve’s policy path, while European inflation data will shape expectations on the other side of the Atlantic. Reuters identified payrolls and U.S. and euro-zone inflation as the key events for the final week of September.