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What's happening: Shares of XPO Logistics (NYSE:XPO) are down nearly 13% in early trading today, after it announced that it would buy trucking company Con-Way (NYSE:CNW) for roughly $3 billion. Shares of Con-Way are up close to 34% today on the news, trading at around $47.44, a slight discount to the $47.60 per share that XPO Logistics has agreed to pay. 

Why it's happening: While it's pretty obvious why Con-Way shares are up (they should trade closer to the deal price until it eventually closes), XPO Logistics' share price drop is a little more nuanced. 

Trading volume is super-high today, so it's looking like a lot of shareholders (or a few large shareholders) don't really like the deal. The company will spend the vast majority of its $1.2 billion in cash on the acquisition, as well as adding to its $3.8 billion in long-term debt. It will also gain another roughly $286 million in net debt that Con-Way carries:

XPO Cash and Equivalents (Quarterly) Chart

XPO Cash and Equivalents (Quarterly) data by YCharts.

That's not to say this is a bad deal, but the market's immediate reaction isn't positive, a continuing trend so far in 2015 as XPO Logistics has been on an acquisition binge, having recently acquired a French shipping company for more than $3 billion. 

The company's stock is down about 28% since January, so it's going to be up to management to prove Mr. Market wrong and show that these acquisitions are in the best interest of its own shareholders. And while the 34% premium for Con-Way's shares may seem expensive, it's actually slightly below that company's share price as recently as January, so XPO isn't necessarily overpaying:

XPO Chart

XPO data by YCharts.

But will the acquisition pay off for XPO Logistics shareholders? It's going to take a few years before we know the answer to that question. 

Jason Hall has no position in any stocks mentioned. The Motley Fool recommends XPO Logistics. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.