Shares in several high-profile companies moved sharply in premarket trading on Monday, led by deal speculation in payments, a major acquisition in rare endocrine treatments, and analyst-driven sentiment around solar. Meanwhile, semiconductor stocks and South Korean equities came under pressure after mixed results from Samsung, prompting investors to trim exposure to the artificial intelligence trade. Separately, Rivian fell after the electric vehicle maker released guidance and details of a large equity offering.
Key takeaways
- Fiserv shares rose more than 5% after a report said the company has held discussions with large U.S. banks about selling its debit-card payments infrastructure business.
- Vertex Pharmaceuticals led a sector deal: Vertex agreed to buy Crinetics in a $10 billion transaction; Vertex shares dipped nearly 1% while Crinetics roughly doubled.
- First Solar advanced nearly 3% after Deutsche Bank upgraded the stock to buy from neutral, citing a potential trade-policy shift and valuation support.
- Semiconductors slid as mixed results from Samsung fueled caution, dragging stocks including Micron and Lam Research.
- Rivian shares fell about 9% after guidance topped expectations but the company also disclosed plans to sell 75 million new shares.
Deal and corporate headlines driving stock moves
Fiserv was one of the biggest gainers after The Wall Street Journal reported the payments company had discussed selling its debit-card payments infrastructure business with major U.S. banks, including JPMorgan and Bank of America. The report cited unnamed sources. The prospect of a sale added to investor interest in Fiserv’s strategic options and helped propel shares more than 5% in premarket trading.
Vertex Pharmaceuticals and Crinetics Pharmaceuticals were both in focus following a large acquisition agreement. According to the companies, Vertex will acquire Crinetics in a $10 billion deal to expand its pipeline of treatments for rare hormonal diseases. The market’s reaction suggested traders balanced deal excitement against integration and valuation uncertainty: Vertex shares dipped nearly 1%, while Crinetics shares roughly doubled as investors priced in a premium for the target.
In another notable corporate move, Rivian fell sharply after issuing revenue and delivery guidance that, according to FactSet consensus, topped expectations. However, the stock’s decline reflected a second, more capital-structure-heavy element of the update: Rivian said it plans to sell 75 million new shares as part of a major capital raise. For investors, the guidance upside was outweighed by dilution concerns and the question of how quickly the company can translate new funding into improved operating leverage.
Analyst upgrade lifts solar; macro concerns weigh on chips
First Solar rose nearly 3% after Deutsche Bank upgraded the stock to buy from neutral. The bank cited multiple factors behind the upgrade, including the view that investors could be underestimating the impact of a potential trade policy shift. The upgrade helped reframe recent weakness as an opportunity, with the stock responding positively even as broader equity risk appetite was uneven.
Semiconductor stocks, however, moved lower as premarket trading reflected caution after mixed quarterly results from Samsung overnight. Investors reportedly reduced exposure to the artificial intelligence trade following the results. In the U.S. market, Micron fell about 5% and Lam Research also declined in premarket trading, consistent with a broader pullback across chip-related names.
Beyond company-specific drivers, the semiconductor selloff spilled into Korean markets. Data show the KOSPI Index slid more than 4%, reflecting the region’s heavy weighting toward semiconductor companies. In premarket trading, the iShares MSCI South Korea ETF (EWY) fell about 4.6%, underscoring how global chip sentiment is increasingly tied to developments from major Asian producers.
What investors are likely watching next
With chip sentiment and dilution risk currently driving attention, investors may be focused on how quickly guidance translates into confidence in balance sheets and margins. For payments, the Fiserv report leaves unanswered questions about deal timing, potential price and terms, and whether the company’s infrastructure assets become a clear strategic lever. For Vertex and Crinetics, key details around deal structure and integration timelines will likely determine whether the market shifts from skepticism to confidence.
Looking ahead, investors will likely track upcoming earnings and company updates across semiconductors and EVs, along with macro catalysts that can influence discount rates—particularly any fresh data on inflation and interest-rate expectations. In addition, trade policy developments, which were cited by Deutsche Bank as a potential driver for solar, may remain on investors’ watchlists.
