CATL Shares Plunge on Weak Q3 While Samsung Surges, Splitting Battery and Chip Sentiment

Shares of Contemporary Amperex Technology (CATL), the Chinese battery maker that supplies Tesla, fell after the company reported third-quarter results that missed expectations. The move stood out against a broader Asian equity advance, where strong earnings elsewhere helped buoy Wall Street sentiment. Samsung Electronics shares surged in the same session, and MiniMax stock also climbed, underscoring how differently investors are treating battery supply chains versus semiconductor and AI-adjacent names right now. The divergence suggests markets are pricing company-specific execution over a single regional theme. What is unresolved is whether CATL's miss reflects a one-off cost or demand issue or points to broader pressure on EV battery margins heading into next year.