WS News
19 Aug 2026, 18:43
Health Care and Consumer Stocks Lead U.S. Market as Technology Lags
U.S. equities remained broadly higher Wednesday afternoon, but sector performance showed a sharp divergence, with health care surging while technology and industrial stocks remained under pressure.
The S&P 500 was up about 0.32% as of 2:38 p.m. ET, supported by strong gains in health care, consumer discretionary, consumer staples and materials.
Moderna Cancer Vaccine Breakthrough Fuels Health Care Rally
Health care was by far the strongest S&P 500 sector, jumping 3.59%, with a major catalyst coming from Moderna and Merck’s positive late-stage cancer-treatment results.
Moderna shares more than doubled after the companies reported that the personalized mRNA cancer therapy intismeran, when combined with Merck’s Keytruda, reduced the risk of melanoma recurrence and spread compared with Keytruda alone. Merck shares also jumped about 10%, while the news sparked a broader biotechnology rally. The Nasdaq Biotechnology Index climbed more than 4%, with BioNTech and other mRNA-related stocks also advancing sharply.
The results are particularly significant because they provide late-stage evidence that Moderna’s mRNA technology could have substantial applications beyond infectious-disease vaccines, improving sentiment toward the broader biotechnology industry.
Consumer discretionary was the second-strongest S&P 500 sector, rising 1.93%, followed by consumer staples at 1.46% and materials at 1.29%. Communication services gained 0.65%, while real estate advanced 0.52%.
Treasury Support Helps Broader Market
The broader improvement in sentiment also follows the Treasury Department’s move to expand liquidity-support buybacks for longer-dated government securities. The action helped ease some of the recent pressure on Treasury yields, providing support to rate-sensitive areas of the equity market.
Real estate’s 0.52% advance is consistent with the easing in long-term yield pressure, as lower borrowing costs tend to improve the relative outlook for the sector.
Technology Remains Under Pressure
Despite the broader market advance, technology continued to lag. The S&P 500 Information Technology sector fell 0.65%, helping explain why the Nasdaq was struggling to participate in the broader rally.
Industrials were the weakest sector, declining 0.71%. Financials fell 0.28% and energy slipped 0.16%, while utilities edged 0.11% higher.
Wednesday’s sector performance therefore points to a significant rotation beneath the headline indexes. Rather than technology leading the market, the S&P 500’s advance is being driven primarily by health care — amplified by the Moderna-Merck cancer breakthrough — alongside strength in consumer and materials stocks.
U.S. equities remained broadly higher Wednesday afternoon, but sector performance showed a sharp divergence, with health care surging while technology and industrial stocks remained under pressure.
The S&P 500 was up about 0.32% as of 2:38 p.m. ET, supported by strong gains in health care, consumer discretionary, consumer staples and materials.
Moderna Cancer Vaccine Breakthrough Fuels Health Care Rally
Health care was by far the strongest S&P 500 sector, jumping 3.59%, with a major catalyst coming from Moderna and Merck’s positive late-stage cancer-treatment results.
Moderna shares more than doubled after the companies reported that the personalized mRNA cancer therapy intismeran, when combined with Merck’s Keytruda, reduced the risk of melanoma recurrence and spread compared with Keytruda alone. Merck shares also jumped about 10%, while the news sparked a broader biotechnology rally. The Nasdaq Biotechnology Index climbed more than 4%, with BioNTech and other mRNA-related stocks also advancing sharply.
The results are particularly significant because they provide late-stage evidence that Moderna’s mRNA technology could have substantial applications beyond infectious-disease vaccines, improving sentiment toward the broader biotechnology industry.
Consumer discretionary was the second-strongest S&P 500 sector, rising 1.93%, followed by consumer staples at 1.46% and materials at 1.29%. Communication services gained 0.65%, while real estate advanced 0.52%.
Treasury Support Helps Broader Market
The broader improvement in sentiment also follows the Treasury Department’s move to expand liquidity-support buybacks for longer-dated government securities. The action helped ease some of the recent pressure on Treasury yields, providing support to rate-sensitive areas of the equity market.
Real estate’s 0.52% advance is consistent with the easing in long-term yield pressure, as lower borrowing costs tend to improve the relative outlook for the sector.
Technology Remains Under Pressure
Despite the broader market advance, technology continued to lag. The S&P 500 Information Technology sector fell 0.65%, helping explain why the Nasdaq was struggling to participate in the broader rally.
Industrials were the weakest sector, declining 0.71%. Financials fell 0.28% and energy slipped 0.16%, while utilities edged 0.11% higher.
Wednesday’s sector performance therefore points to a significant rotation beneath the headline indexes. Rather than technology leading the market, the S&P 500’s advance is being driven primarily by health care — amplified by the Moderna-Merck cancer breakthrough — alongside strength in consumer and materials stocks.
