<ul><li>US stocks dipped on Wednesday before Nvidia's earnings report. Markets were eyeing a spike in tensions as Ukraine deployed Western-made weapons to strike inside Russian territory.</li><li>Traders were also waiting on a number of Fed speakers for guidance on interest rates.</li><li>Investors are eagerly awaiting Nvidia's third-quarter results, expecting a revenue increase of 83% on a year-over-year basis.</li><li>Target shares plummeted 20% after the firm slashed its guidance for the year and posted its worst earnings miss in two years.</li></ul>

Stock market today: Indexes dip ahead of Nvidia earnings as traders weigh Russia-Ukraine tensions

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