Regeneron Pharmaceuticals (REGN) had the highest return between September 15, 2005 and October 31, 2005 by a large-cap US stock, returning 57.8%.
Regeneron Pharmaceuticals (REGN) had the highest return between September 15, 2005 and October 31, 2005 by a large-cap US stock, returning 57.8%.
Large-cap stocks are treated as having a market cap of $10B+.