LNKD valuation at IPO~$4 Billion. At $100 per share valuation is about 9 billion. It earned $15 million last year. If you could purchase the entire company and want just a 10% return on your purchase or $900 million, EPS will need to increase 6000%. To put it into perspective it took Apple 10 years to increase earnings 6604% from 2001 to 2011. I am not sure a company in this sector and with this model will be able to do that selling essentially networking tools and hiring services (i.e. look at Monster) We'll see, but I am not buying. If you buy it, good luck.