Omega Advisors CEO Leon Cooperman joined the "Halftime Report" today to discuss everything from Valeant, to politics, to the market.
A renowned value investor, he is pessimistic on how the market is currently structured. A lot of his pessimism stems from the prevalence of high-frequency traders.
"In the world we live in, in 15 minute intervals the S&P should not go up or down 30 or 40 S&P points. There's something wrong and we should tackle it and try to figure it out," Cooperman argued.