Opening Glance: Construction, engineering mixed

In sector news, a Morgan Joseph analyst upgraded shares of Jacobs Engineering Group Inc. to "Buy" from "Hold," saying the company is positioned to benefit from the oil and gas markets.

Here's how some shares of construction and firms are faring:

Perini Corp., up 36 cents to $28.31.

URS Corp., down $1.11, or 2.8 percent, to $38.37.

Quanta Services Inc., down $1.72, or 5.7 percent, to $29.52.

Jacobs, up $2.22 , or 2.9 percent, to $78.94