Nasdaq Slips as Chip Stocks Fall, while Global Indices Await Inflation Data

US equities finished Tuesday, October 13, with mixed but generally modest index declines ahead of Wednesday's inflation report. Reuters reported the S&P 500 down approximately 0.02%, the Nasdaq Composite down 0.15% and the Dow Jones Industrial Average lower by 0.35%. These are the prior session's closing performances, not live October 14 trading.

Semiconductors came under pressure after concerns about speculative AI capital spending and possible competition from Chinese memory-chip producers. The Philadelphia Semiconductor Index declined again, while some individual chipmakers faced larger moves. The effect was especially visible in indices and investment products with concentrated technology exposure.

Meanwhile, bank earnings were mixed and a few major companies had positive or negative reactions unrelated to AI. That explains why the S&P 500 barely moved even though technology headlines felt dramatic. Market-cap weighting allows a small number of large stocks to dominate returns, while other groups can offset them.

AP's October 14 international market snapshot showed cautious gains in some European indices and weakness in several Asian markets. Such comparisons are not synchronized: the US numbers refer to the prior close while European and Asian figures can be intraday. A fair performance comparison must use common closing periods.

For readers trading index CFDs or futures, remember that the cash index is an accounting calculation, while the future includes financing, dividends and market expectations. A futures quotation before US CPI can diverge from the most recent cash closing level. Avoid presenting them as identical prices.

Key watchpoints include today's CPI surprise, Treasury yields, technology-sector breadth and subsequent company results. The October 13 decline does not prove that an AI bubble has burst, nor does a single rebound prove the sector is safe. RecoupRev's related Nasdaq concentration guide explains the difference.