• In today’s CEO Daily: Phil Wahba digs into two retail CEOs’ succession plans. • The big story: Nvidia reports blockbuster earnings. • The markets: Nvidia sparks a rally. • Plus: All the news and watercooler chat from Fortune.

Good morning. Phil Wahba writing today. This week, a pair of earnings reports—those of Walmart and Target—offer up a reminder of how tricky CEO succession planning can be. Both retailers’ CEOs—Walmart’s Doug McMillon and Target’s Brian Cornell—started in 2014 and are leaving in February, handing their companies off to lieutenants who are company lifers. But that’s where the succession similarities end.

Target and Walmart have long duked it out for the U.S.’s budget-conscious shopper, with Target skewing a bit more to discretionary and “fun” items and Walmart

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