What happened Shares of American Eagle Outfitters (NYSE: AEO) fell 18.4% last month, according to data provided by S&P Global Market Intelligence. AEO data by YCharts So what American Eagle's May swoon began on May 10, when The Wall Street Journal reported (subscription required) that it was in talks to acquire rival apparel retailer Abercrombie & Fitch (NYSE: ANF). American Eagle is believed to be working with private equity firm Cerberus Capital Management on a joint bid for Abercrombie. Yet judging by the stock's reaction to the news, investors don't like the idea of one struggling retailer further leveraging its balance sheet to buy another struggling retailer. Investors apparently aren't too excited about American Eagle Outfitters' reported merger talks with Abercrombie & Fitch. Image source: Getty Images. Worse still, the decline in American Eagle Outfitters' stock price accelerated in response to its disappointing first-quarter results. The company reported tepid sales growth of just 1.7%, and its adjusted earnings per share declined to $0.16 from $0.22 in the prior-year quarter. Now what American Eagle's stock price is currently trading right around where it ended June, yet further declines are certainly possible, particularly if the company does move to acquire Abercrombie & Fitch. While a merger of these two businesses would allow management to cut costs, such a deal would also bring a multitude of challenges. American Eagle Outfitters would be acquiring about 900 Abercrombie & Fitch stores, many of which are located in malls that are suffering traffic declines as consumers increasingly shift their shopping to online channels. Purchasing those stores -- and even worse, the approximately $3 billion in operating leases attached to them -- at a premium just doesn't make a whole lot of sense. In the end, American Eagle Outfitters' investors should hope that it decides against acquiring Abercrombie & Fitch, and focuses its efforts on improving its own operations. 10 stocks we like better than American Eagle OutfittersWhen investing geniuses David and Tom Gardner have a stock tip, it can pay to listen. After all, the newsletter they have run for over a decade, Motley Fool Stock Advisor, has tripled the market.* David and Tom just revealed what they believe are the 10 best stocks for investors to buy right now... and American Eagle Outfitters wasn't one of them! That's right -- they think these 10 stocks are even better buys. Click here to learn about these picks! *Stock Advisor returns as of June 5, 2017Joe Tenebruso has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.