Argonaut Group Inc.’s income increased 107% to...

Argonaut Group Inc.’s income increased 107% to $47 million, compared to $22.7 million for the year-ago period, the company reported. The Los Angeles-based holding company, whose subsidiaries are primarily engaged in workers compensation insurance and property-casualty insurance, had a one-time gain of $29.2 million that it attributed mainly to sales of investments.