CNBC's Robert Frank takes a closer look at the recent boom in art sales.
Tad Smith, Sotheby's CEO & president and CNBC's Robert Frank talk about the turnaround in the art market ahead of London's kick off sales, and whether a border tax could have a negative impact on the industry.
Mick McGuire, Marcato Asset Management, discusses whether he sees upside potential in United Rentals, Sotheby's and Deckers.