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Aetna Inc. said it returned to profitability in the fourth quarter as results in its managed-care health insurance business stabilized. Fourth-quarter net income for Hartford, Conn.-based Aetna, including a gain, was $273.9 million, or $1.71 per share, contrasted with a net loss of $107.1 million, or 80 cents, a year ago.

Harrah’s Entertainment Inc. said fourth-quarter earnings fell to $19.1 million before charges, or 19 cents a diluted share, compared with $22.5 million, or 22 cents, a year ago.

San Diego-based Foodmaker Inc., parent of Jack in the Box restaurants, reported fiscal first-quarter net income of $11.7 million, or 29 cents per diluted share, compared with $9 million, or 23 cents, a year ago.

Wendy’s International Inc. said fourth-quarter profit rose 14% to $45.9 million, or 34 cents a diluted share before charges, compared with $40.2 million, or 30 cents, a year ago.

Anheuser-Busch Cos., hurt by competition in the U.S. beer industry, said fourth-quarter earnings fell 2.1%, to $146.8 million before a charge, or 30 cents a diluted share, from net income of $150 million, or 30 cents, a year earlier.

Libbey Inc. said fourth-quarter earnings fell 1.4% to $9.79 million, or 58 cents a diluted share, from $9.93 million, or 65 cents, a year ago.

Woodland Hills-based 20th Century Industries reported fourth-quarter net income of $19.3 million, or 23 cents per diluted share, contrasted with a net loss of $7.8 million, or 25 cents, a year ago.