Applied Materials is trading at $388.52, down 4.99% in pre-market as semiconductor shares face concerns over returns on heavy AI investment. - No verified new company-specific announcement explains the decline; the Intel collaboration was announced October 6, not overnight. - Asian chip stocks weakened, while major U.S. indices were also lower, consistent with broader risk-off sentiment. The move appears sector-led alongside market weakness, rather than tied to a confirmed Applied Materials-specific catalyst.