Kaiser Permanente Hawaii earned a $1.4 million profit in the fourth quarter, up from $200,000 in the year-earlier period, after gaining more than 5,000 members primarily through the Obamacare health insurance exchange.

The state’s largest health-maintenance organization — both an insurance company as well as a medical provider — reported quarterly revenue of $305.7 million, up from $297.2 million, and expenses of $304.3 million, an increase from $297.2 million. It posted operating income of $1.4 million and didn’t record investment income in the quarter.

For the year, Kaiser’s revenue totaled $1.2 billion, up from $1.16 billion 2013, while operating expenses grew to $1.21 billion, compared to $1.17 billion.

This resulted in a $4.2 million annual operating loss, down from a $4.8 million loss the prior year. However, investment gains of $2.1 million — a drop from $3.8 million in 2013 — lowered Kaiser’s net loss to $2.1 million. The HMO posted a loss of $1 million the year earlier.

“We were fortunate to have good membership growth on Oahu, Maui and Hawaii island. That membership growth helped with our overall financial performance,” said Thomas Risse, Kaiser’s chief financial officer. 

Kaiser is the only health insurer currently selling small-business policies on the Hawaii Health Connector, the state’s online insurance marketplace created by the Affordable Care Act, also known as Obamacare. Hawaii Medical Service Association, the state’s largest health insurer, stopped selling plans on the Connector at the end of last year, citing the time and money it spent dealing with ongoing technical problems of the exchange.

Kaiser’s membership as of Dec. 31 totaled 231,836, up from 226,603 at the end of 2013.