Westport Innovations Inc. (USA) (NASDAQ:WPRT) is a provider of engine and fuel system technologies utilizing gaseous fuels. Westport Innovations Inc witnessed volume of 5.16 million shares during last trade however it holds an average trading capacity of 1.05 million shares. WPRT last trade opened at $42.67 reached intraday low of $38.05 and went -7.74% down to close at $38.38.