Square saw its shares tumble as much as 15 percent after hours on Thursday as the mobile-payments company reported a wider-than-expected quarterly loss despite surging revenue.

The San Francisco-based firm founded by its Chief Executive Officer Jack Dorsey — who is also CEO of Twitter — said Thursday it lost $96.7 million, twice as much as it did a year previous.

On an adjusted basis, the loss was 14 cents a share, missing analysts’ estimates for a 9-cent-per-share loss.

Square’s stock, which went public in November at $11.20 a share, dipped below that price sporadically in after-hours trading after closing the regular session at $13.05.

The wider loss came despite revenue surging more than 50 percent to $379 million.