Action camera maker GoPro reports bigger loss as costs double

MANILA, Philippines - GoPro Inc, which makes wearable cameras used by surfers, skydivers and other action junkies to post their exploits online, reported a bigger quarterly loss as costs nearly doubled.

GoPro shares fell 11 percent to $42.70 in extended trading after its first financial results since its initial public offering in June.

Research and development spending more than doubled to $34.7 million while costs from its Nasdaq share market listing pushed up general expenses.

The net loss attributable to GoPro stockholders grew to $19.8 million, or 24 cents per share, in the second quarter from $5 million, or 6 cents.

Excluding items, GoPro earned 8 cents per share and the company said it expected a seasonally stronger second half.

CFO Jack Lazar forecast earnings of 6-8 cents per share in the current quarter on revenue of between $255 million and $265 million.

This is higher than the $244.6 million revenue reported in the second quarter, but that 38 percent jump in sales was offset by operating expenses of $119.5 million, almost double a year earlier.

Operating expenses would drop back to between $92.5 million and $95 million in the current quarter, Lazar told analysts on a conference call.