Why Westport Fuel Systems Stock Popped 11.5% -- Then Lost It All

Shares of natural gas-powered-engine maker Westport Fuel Systems (NASDAQ: WPRT) shot out of the gate Friday morning, rising as much as 11.5%...before turning tail and giving up nearly all their gains later in the day. By noon, Westport shareholders were seen despondently examining profits that amounted to less than 2% -- 1.6% at noon EST to be precise.

So what explains investors' quick round of applause for Westport, and why did it fade even quicker?

Image source: Getty Images.

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Source Fool.com