Mega-Cap Tech Reclaims Leadership as Stocks Open the Week with Strong Gains

Stocks began the new trading week on a strong note as investors rotated back into mega-cap technology shares following last week’s broadening of market leadership. The S&P 500 advanced 1.2%, the Nasdaq Composite surged 2.1%, and the Dow Jones Industrial Average gained 0.6%, while the Vanguard Mega Cap Growth ETF jumped 2.6%.

After taking a back seat to other sectors last week, the market’s largest technology companies regained leadership. Five of the “Magnificent Seven” stocks finished higher, allowing the market-cap-weighted S&P 500 to comfortably outperform the S&P 500 Equal Weight Index, which gained just 0.2%. The Dow also benefited from the recent addition of Alphabet Class A shares, giving the price-weighted index greater exposure to the day’s rebound in mega-cap technology.

Communication services led all sectors with a 3.1% gain. Alphabet climbed 4.8% in its first full trading session as a Dow component, providing a significant boost to the sector. Comcast also advanced after announcing plans to separate NBCUniversal and Sky into an independent publicly traded company through a tax-free spin-off. Charter Communications rallied on reports that it is in discussions with SpaceX regarding a potential mobile phone partnership.

The Comcast announcement, however, pressured several broadband and wireless providers. Verizon, T-Mobile, and AT&T all moved sharply lower as investors assessed the competitive implications of the proposed transaction.

Consumer discretionary stocks also posted an impressive 2.7% gain as several mega-cap names rebounded strongly. Tesla climbed 8.5%, reclaiming its 50-day moving average, while Amazon gained 3.2% after encouraging early Prime Day sales data boosted investor sentiment.

Technology stocks experienced another volatile session beneath the surface. Semiconductor shares erased an early selloff that briefly pushed the Philadelphia Semiconductor Index down more than 2% before buyers stepped in aggressively, driving the index to a 3.8% gain by the closing bell.

Memory stocks initially weakened following reports that Apple is seeking approval to source memory chips from China’s ChangXin Memory Technologies. Sentiment improved considerably later in the day after Samsung Electronics and SK Hynix announced major long-term investment plans, fueling a rally across AI infrastructure suppliers. Applied Materials gained nearly 11%, while Corning surged more than 15% to become the best-performing stock in the S&P 500.

Software stocks also contributed to the market’s strength, with the iShares Expanded Tech-Software Sector ETF rising 1.9%.

The information technology sector finished 1.7% higher despite late-session weakness in Super Micro Computer, which declined after Bloomberg reported that Taiwanese authorities raided one of the company’s offices as part of an investigation into the alleged smuggling of NVIDIA chips into China.

Outside of technology, gains were more modest. Industrials rose 0.8%, while financials and health care both finished slightly higher.

The materials sector was the weakest performer, falling 1.9% as construction materials companies surrendered part of last week’s gains. Martin Marietta declined sharply after announcing its acquisition of Lhoist North America.

Real estate also underperformed, while traditionally defensive sectors—including consumer staples and utilities—lagged as investors rotated back toward growth-oriented stocks.

Overall, Monday’s session marked a convincing return to mega-cap technology leadership after broader market participation dominated trading last week. The S&P 500 and Nasdaq Composite recovered roughly half of last week’s losses, while the S&P 500 also reclaimed its 50-day moving average, an encouraging technical development that suggests buyers remain willing to step back into the market’s largest growth names after periods of weakness.

Our FTinvest 11 model portfolio declined 1.29% to close at 968.95, extending last week’s sharp selloff and remaining below the 1,000 level. The portfolio has now retreated approximately 10.2% from its all-time high of 1,078.93, placing it back into correction territory after briefly recovering earlier in the month.

Based on the start-of-year level of 928.18, FTInvest 11 remains up approximately +4.39% year-to-date. The recent pullback has erased much of the recovery achieved following the resolution of liquidity issues at one portfolio component, highlighting the fragile nature of market sentiment in the current environment. Despite the renewed volatility, the portfolio continues to maintain a positive return for the year, and its disciplined, value-driven investment approach remains focused on identifying fundamentally attractive opportunities and generating long-term capital appreciation.