The major U.S. averages were struggling to start the day, but all three have pared losses and the Dow is the lone index in the red Tuesday afternoon.

The Dow Jones Industrial Average was down 0.25%, or 62 points, to 25,157 while the Nasdaq rose 0.74%, or 53 points, to 7,293 and the S&P 500 climbed 0.15%, or 4 points, to 2,737.

These are the three stories investors were watching Tuesday. 

Walmart Losing Ground on Amazon

Taking on Amazon (AMZN) is no small task, as Walmart (WMT) investors are finding out Tuesday. 

UPS' Is Flashing Red Flags

UPS' (UPS) board is overtenured, making it a prime target for activist investors

Qualcomm Ups Bid for NXP

Qualcomm (QCOM) is hoping to stave off a hostile takeover from Broadcom (AVGO) by upping its bid for NXP Semiconductors (NXP) .

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