<ul><li>US stock ended lower on Wednesday as encouraging tech earnings were eclipsed by a sell-off among semiconductor shares.</li><li>Alphabet's big earnings beat helped send its stock up almost 3% in the session, but major indexes fell as chipmakers suffered losses.</li><li>AMD and Super Micro Computer led the rout, with AMD dropping almost 11% and SMCI plunging 33% on weak guidance and auditor resignation.</li><li>Macroeconomic data showed strength in the US economy, with strong consumer spending and a fast rise in ADP hiring, potentially setting the stage for another big nonfarm payrolls report.</li></ul>

Stock market today: Indexes slide as chipmaker rout drags tech ahead of key earnings

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