US stocks (^DJI, ^IXIC, ^GSPC) initially opened in positive territory before reversing course shortly after Tuesday's market open. Equity markets are preparing for the beginning of Big Tech earnings season, with Alphabet (GOOG, GOOGL) and Tesla (TSLA) reporting results after the closing bell.

Seana Smith and Madison Mills observe the movements in the major market averages and sectors following the opening bell.

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This post was written by Luke Carberry Mogan.