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US stocks fall as Walmart drags; Moderna surges then pares gains

Moderna’s shares soar 177% before paring gains to 140% above Tuesday’s close. Walmart’s weak quarter weighs on retail peers. SMI and Swiss indices decline as oil prices rise.

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Priya Anand · Equities & Earnings Desk · 20 Aug 2026 · 15:46 · 2 min read
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US stocks fall as Walmart drags; Moderna surges then pares gains

U.S. equities slipped on Thursday as losses in retail shares offset gains in biotech and chipmakers, while global benchmarks including the SMI followed suit.

The Dow Jones Industrial Average fell 0.7% to 53,110 points in early trade, approaching its lowest level since early August. The S&P 500 declined 0.3% to 7,683, and the tech-heavy Nasdaq 100 dropped 0.7% to 29,290. Futures on the Dow were down 0.13%, while Nasdaq futures edged up 0.1%. The Swiss Market Index (SMI) dropped 0.45%, with Logitech and Swiss Re among the largest decliners at nearly 3% each.

Moderna’s stock surged 177% on Wednesday to an intraday peak of $176.66, the highest level in more than three years. The move pushed the biotech’s shares above its 50-, 100-, and 200-day moving averages, marking a technical breakout. The Relative Strength Index (RSI) hit 92.21, the highest in the company’s history, signaling extreme overbought conditions. By Thursday, shares remained roughly 140% above Tuesday’s close despite a 17% pullback.

Walmart’s weak second-quarter results weighed on retail stocks after the bell on Wednesday. The world’s largest brick-and-mortar retailer fell 6% in pre-market trading, dragging down peers such as Costco, TJX, and Home Depot. The company cited weaker-than-expected U.S. sales, particularly in pharmaceuticals, where pricing pressure hurt margins. In contrast, agricultural equipment maker Deere & Co rose nearly 4% after beating earnings estimates and forecasting a strong 2027 for the U.S. farm sector.

Coty’s shares tumbled 16% after the cosmetics group posted quarterly results and declined to provide full-year guidance, calling the current year a transitional period. Wolfspeed, a manufacturer of silicon carbide chips, sank more than 12% in pre-market trade after reporting a 24.1% year-over-year revenue decline in its fourth quarter and a loss per share of $2.81.

Oil prices extended their advance, with Brent crude up 2.6% to $94.04 per barrel, the highest since late July, while U.S. WTI rose 2.5% to $87.95. Analysts at UBS cited elevated geopolitical risks in the Middle East as a potential drag on exports, warning of further supply tightness. The surge in crude prices reignited inflation concerns, with Brent nearing the $100 per barrel mark last seen in late July.

In the SMI, Geberit gained 1.1% following strong first-half results, while Givaudan, Amrize, and Holcim also advanced. Roche, Novartis, and Lonza rose between 0.1% and 0.4%, with Lonza benefiting from Moderna-related news. On the downside, Logitech fell 2.6% after JPMorgan downgraded its rating, citing a challenging macroeconomic environment. Swiss Re and Sika also declined by around 2%.

Analyst actions added to the volatility. UBS downgraded Aryzta to ‘Sell’ from ‘Buy’, while Berenberg cut its target for Huber+Suhner. Conversely, UBS raised its rating on Sonova, citing confidence in end markets for the hearing aid manufacturer. Centiel, a recent IPO, surged 12.8%, while Valartis jumped 15.9% on positive half-year outlook news. DocMorris rose 2.8% after reporting figures suggesting a potential break-even scenario.

This article was produced with AI assistance and edited by a Finance Review Daily journalist.
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Written by
Priya Anand
Equities & Earnings Desk

Priya covers listed equities and corporate earnings, reading quarterly results and guidance for what they signal about sector health and forward valuations.

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