Arthur J. Gallagher The insurance brokerage reported fourth-quarter earnings on Wednesday of 43 cents a share, up 19% from a year earlier, on a revenue increase of 20% to $558 million. "We expect revenue growth to remain encouraging with low single-digit organic revenue growth," Keefe, Bruyette & Woods analysts wrote in a report on Jan. 31. "Nevertheless, we expect the continued difficult operating environment, in addition to the ongoing integration of Heath Lambert, to keep margin improvement somewhat muted through 2012." Shares of Arthur J. Gallagher hit a 52-week high of $34.45 on Wednesday. The stock's 52-week low of $24.29 was set on Aug. 9. Arthur J. Gallagher gets an A- grade from TheStreet Ratings with a $40.23 price target. The stock increased 2.51% year to date. -- Written by Alexandra Zendrian >To contact the writer of this article, click here: Alexandra Zendrian >To submit a news tip, send an email to: email@example.com. >To follow the writer on Twitter, go to Alexandra Zendrian.