What: Shares of United Rentals (NYSE:URI) dropped as much as 17% in early trading Thursday after reporting earnings. As of noon ET, the stock was down 15%.

So what: Fourth-quarter revenue fell 3% to $1.52 billion and net income dropped 13% to $169 million, or $1.81 per share. Revenue was only slightly below the $1.53 billion Wall Street analysts expected, but they were guessing earnings would be $2.31 per share and that's what has investors worried today.  

Management also gave 2016 guidance of $5.65 billion to $5.95 billion in revenue, where the midpoint is below 2015's revenue of $5.82 billion.

Now what: While the market may not like United Rentals' earnings trend, I can't help but see incredible value in the stock. Shares trade at just 7.7 times earnings and expected free cash flow of $900 million to $1.0 billion is attractive when compared to the $4.4 billion market cap. Management has a $1 billion share buyback program in place and that could help drive earnings per share higher. Though the business may not be in growth mode, it has a solid competitive moat and great value for investors getting in today.

Travis Hoium has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. 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.