US and South Korean memory chip stocks and chipmakers have long outperformed the broader market, but this trend is now undergoing a sharp reversal. As of Wednesday's close, many major companies in the sector had fallen into bear market territory, dow

2026-07-09

US and South Korean memory chip stocks and chipmakers have long outperformed the broader market, but this trend is now undergoing a sharp reversal. As of Wednesday's close, many major companies in the sector had fallen into bear market territory, down more than 20% from recent highs. Here are the factors contributing to the sector's pressure: 1. AI companies' best performance may not satisfy the market – Despite Samsung reporting record profits and impressive growth forecasts, it failed to win over investors; investors sold off related stocks, staging a classic "sell the news" scenario. The market remains concerned about companies over-investing in AI infrastructure. 2. Escalating geopolitical tensions – Trump's latest move to halt the US-Iran memorandum has exacerbated market anxiety about AI deals. If the conflict continues and inflation concerns resurface, the hottest sector in AI trading could see further declines. 3. A reversal triggered by sector rotation – With AI hyperscale cloud service providers lagging behind memory chip manufacturers in stock returns, a growing number of Wall Street strategists are beginning to anticipate a reversal of this trend. Morgan Stanley's chief investment officer and chief U.S. equity strategist, Mike Wilson, predicted on Monday that chipmaker stocks would correct, a prediction that has proven prescient; he now forecasts a return of funds to the hyperscale cloud service provider sector. While chipmaker stocks are nearing their highs, some hyperscale cloud service provider stocks appear quite cheap.