Largecap News Today — July 28, 2026
SK Hynix shares plunge nearly 15% in Seoul as chip sell-off deepens and more — today's largecap signal.
The technology sector is dominating the headlines today, with a significant sell-off in chip stocks leading to a plunge in SK Hynix shares in Seoul, down nearly 15% as investors continue to express concerns about the industry's outlook. This decline is not isolated, as the link between US and Korean tech stocks has become increasingly tight, potentially posing a worry for investors who are now more closely tied to the fortunes of companies on both sides of the Pacific. The ripple effects of this tech downturn are being felt across the market, with Apple managing to capitalize on the shift in sentiment to become the world's most valuable company, surpassing Nvidia.
Despite the challenges facing the tech sector, other areas of the market are experiencing gains, as investors seek to diversify their portfolios and capitalize on the mixed market conditions. Meanwhile, outside of the tech space, other notable news includes a legal development involving former FBI director James Comey, who is asking a judge to dismiss a case brought by former President Trump. In another significant development, SpaceX's stock has fallen to a new low, despite the company's recent success with a near-flawless Starship flight, highlighting the complexities and challenges of investing in innovative but high-risk companies. As the market continues to navigate these crosscurrents, largecap investors will be closely watching for signs of stability and opportunities for growth.
Today's signal:
• SK Hynix shares plunge nearly 15% in Seoul as chip sell-off deepens (cnbc.com)
• U.S. and Korean tech stocks are now tightly linked — and that could be a worry for investors (cnbc.com)
• Apple ends day as world's most valuable company, passing Nvidia (cnbc.com)
• More tech pain means gains elsewhere. What's winning in Monday's mixed market (cnbc.com)
• SpaceX’s stock falls to a new low despite a near-flawless Starship flight (marketwatch.com)
• Comey asks judge to dismiss Trump 'seashells' case citing lack of 'true threat' (cnbc.com)