U.S. stocks clawed back from lows on Monday, though the S&P 500 did close with slight losses. Worries President Trump's "America First" policies could hurt growth kept markets on the defensive for much of the day. Kate Spade (KATE) climbed on reports of takeover interest. Accessories brands Coach  (COH) and Michael Kors (KORS) are reportedly both mulling a bid. Aetna  (AET) fell after a federal judge blocked its proposed $37 billion merger with Humana (HUM - Get Report) . The judge said the deal would likely harm competition in hundreds of counties across the U.S.  AMC Entertainment (AMC - Get Report) agreed to buy Nordic Cinema Group, a Stockholm-based cinema chain, in an all-cash deal worth more than $900 million. The acquisition is expected to close in June.