Everybody's worried about a tech bubble. Unicorns prance everywhere, and, well, bubble. But however lofty the valuations of privately-held start-ups may be, the track record of tech firms gone public isn't so troubling -- at least not when you compare them to IPO alumni in other sectors.
Look at Bloomberg data on companies globally that have priced since the beginning of 2010 at $50 million or more: The performance of tech IPOs is middle-of-the-pack. Energy companies have performed the worst in the same time period, while industrial companies have performed the best. The financial sector, which includes REITs, saw the highest number of IPOs in that time and the largest offer size overall.