South Korean casino operator Grand Korea Leisure (GKL) enjoyed solid gains in Q3 while rival Kangwon Land continues to struggle.

GKL, which operates three Seven Luck foreigner-only casinos (two in Seoul, one in Busan), reported revenue of KRW 138.7b (US $124.5m) in the three months ending September 30, a year-on-year improvement of 3.5%. But operating income jumped nearly 18% to KRW 40.7b and profit spiked more than one-fifth of KRW 33.4b.

GKL’s brief filing with the Korean exchange didn’t explain the disparity between its modest revenue gains and its much-greater improvement in earnings and profits, so we’re just going to guess that GKL found a big wad of cash buried in its VIP sofa cushions and leave it at that.

Meanwhile, Kangwon Land was headed in the opposite direction, reporting revenue down 9.8% to KRW 395b, operating income down 15% to KRW 137.6b and profit off 4.3% to KRW 119b. For the year-to-date, Kangwon Land’s profits are down more than 8% to KRW 359.2b.