This is an archived article that was published on sltrib.com in 2016, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

UnitedHealth Group hiked its 2016 earnings forecast again after its profit swelled 23 percent to nearly $2 billion in the third quarter, helped by gains both in and outside its core insurance business.

The nation's biggest health insurer now expects adjusted, full-year earnings of about $8 per share, up from its previous forecast of $7.80 to $7.95 per share.

Wall Street had been projecting per-share earnings of $7.93, according to FactSet, and the company's stock rose before the opening bell Tuesday.

Operating earnings jumped more than 10 percent to $2.1 billion for the company's UnitedHealthcare business, which sells individual and employer-sponsored coverage and runs Medicaid and Medicare plans.

Health insurance is UnitedHealth's main business, but it also has been growing its Optum business, which provides pharmacy benefits management and technology services and runs clinics and doctor's offices. Operating earnings from that segment surged 36 percent to $1.5 billion.

Overall, UnitedHealth earned $1.97 billion in the three-month period that ended Sept. 30, up from $1.6 billion in the previous year's quarter. Adjusted earnings totaled $2.17 per share in the most recent quarter.

The results topped expectations on Wall Street, where analysts forecast earnings of $2.08 per share, according to Zacks Investment Research.

UnitedHealth posted revenue of $46.29 billion in the quarter, above the average analyst forecast for $45.87 billion.

UnitedHealth shares have climbed 14 percent since the beginning of the year, outpacing other national health insurers, while the Standard & Poor's 500 index has climbed 4 percent.

UnitedHealth, based in Minnetonka, Minnesota, is the first major insurer to announce earnings every quarter, making it an industry bellwether.

The insurer offered no update Tuesday on its performance in the Affordable Care Act's public exchanges.

UnitedHealth said in July that it expected to lose around $850 million from its ACA-compliant individual business, which amounts to a small slice of its total operation. CEO Stephen Hemsley told analysts then that his company would have no meaningful exposure next year to the exchanges, a key element in the law's push to expand coverage.

UnitedHealth grew fast in the ACA exchanges, expanding to sell coverage in 34 states this year. But next year, it will only offer coverage on exchanges in three states: Nevada, Virginia and New York.

Other insurers also have struggled in developing the still-new business, and defections from the exchanges are expected to hurt customer choice in many markets later this fall, when the enrollment period begins for 2017 plans.