Much has been said about Groupon's run-up to IPO so we decided to take a look at the events leading up to the company's public offering and how investor's behaved and fared after the company went public. At SigFig, we're helping investors make smarter decisions, and our investment tools help users track and analyze $20 billion of their investments across 65 brokerages. We looked across all this data to learn more about investors who bought Groupon and how they compare to recent tech IPOs from LinkedIn and Pandora.