Video: Three mid-cap stocks to buy "Richard Watts, the manager, is focusing on areas that can grow despite weakness in the wider economy," he said. John Newlands of Brewin Dolphin tipped the Throgmorton investment trust, which is substantially exposed to mid-cap companies despite being in the industry's UK Smaller Companies sector. "Managed by BlackRock's Mike Prentis and Richard Plackett, the trust stands on a useful discount of around 13pc to net asset value and has produced a total return of more than 90pc over the past three years," Mr Newlands said. It has a yield of 1.48pc and an annual charge of 0.7pc, on top of which there is a performance fee.