Not too big, but not too small: The statement is reminiscent of the story about Goldilocks and the three bears, but it's also a pretty good description of mid-cap stocks in the biotech space. In this Motley Fool Live video recorded on July 14, 2021, Motley Fool contributors Keith Speights and Brian Orelli discuss five mid-cap healthcare stocks you'll want on your radar for the second half of this year. Keith Speights: Brian, we talked last week about large-cap stocks for investors to watch in the second half of this year.