Cox Automotive buying Dealertrack for $4 billion

Digital marketing and e-commerce company Cox Automotive Inc. will buy Dealertrack Technologies Inc. in an all-cash deal worth about $4 billion.

Atlanta-based Cox Automotive focuses its services on the automotive industry. Among its properties are Kelley Blue Book, Manheim and Autotrade.

Lake Success, N.Y.-based Dealertrack makes software used by the auto dealerships.

The deal values Dealertrack at $63.25 per share, marking a 61% premium from its closing price of $39.19 on Friday.

The companies expect the deal to close in the third quarter.

Dealertrack shares climbed $23.13, or 58%, to $62.98.