Bigger isn't better when it comes to earnings and stocks so far this year and beyond.

That's according to Lawrence Golub, CEO of Golub Capital, who made his case for health care and middle market companies on Power Lunch today. Golub gave viewers a look at his research that shows large industrial stocks are flat on earnings and revenue while health care stocks are knocking it out of the park with 15% revenue gains and 9% gains in earnings. He expects that strong run to continue through this earnings season.