July 24 (Reuters) - Surveillance and satellite imaging company MacDonald, Dettwiler and Associates Ltd posted a second-quarter loss as it took a share-based compensation charge.
Net loss was C$1 million, or 3 Canadian cents per share, compared with earnings of C$31.6 million, or 77 Canadian cents per share, a year ago.
Net earnings for the quarter were hurt by a share-based compensation expense of C$32 million, the company said.
Revenue, for the company famous for creating the robotic arm used on NASA space shuttles, fell 16 percent to C$164 million.
Shares of the company, which have gained 28 percent over the last three months, closed at C$54.80 on Thursday on the Toronto Stock Exchange.