But is this new IPO's stock an opportunity following the sell-off?Shares of StubHub (STUB +4.15%) sank 38.7% in November, according to data from S&P Global Market Intelligence.StubHub is a newly public stock, having had its initial public offering on September 17 at $23.50 per share. However, the bloom came off the rose for the stock in November, after first-quarter earnings seemed to disappoint the market's high expectations. Additionally, the United Kingdom's regulatory authorities passed measures that co ...