Online gambling operator Kindred Group set revenue records in the final quarter of 2017 thanks to new acquisitions and the bad luck of sports bettors.

Figures released Wednesday by the Stockholm-listed Kindred show revenue hitting £238m in the three months ending December 31, 2017, a nearly 56% improvement from the same period one year earlier and a new company record. Earnings nearly doubled to £74.5m while after-tax profit shot up nearly 73% to £50.8m.

For the year as a whole, Kindred’s revenue rose 38% to £751.4m, earnings were up 49.5% to £185m and profit gained 40% to £117.4m. Kindred CEO Henrik Tjärnström credited the boffo performance to investments in marketing and product development, and what he called “an exceptional sportsbook margin approximately 50% above the long-term average.”

Gross margins for pre-game sports wagers before free bets were a gaudy 16.2% in Q4, up 6.1 points year-on-year. The margin on all sports bets before free bets was up nearly three points to 11.7%, while the after free bets margin improved 3.5 points to 10.5%.