Athenahealth Inc. shares ripped higher with a 26% gain in early trading on Dec. 15, the day after the company affirmed its 2016 guidance and established an outlook for 2017.

The company, which provides network services for electronic health records, expects adjusted operating income to be between $120 million and $135 million for 2016. Athenahealth projects adjusted operating income to range from $170 million to $190 million in the following year.

Athenahealth's stock was up 26.44% to $119.32 per share as of 10:35 a.m. ET.