The startup market has reached a point of maturity, with more and more startups seeing their valuations explode thanks to fruitful initial public offerings and acquisitions, according to Goldman Sachs' Views from the Valley report, published last week. Despite a name that indicated uniqueness, quite a few startups are unicorns — private companies valued at $1 billion or more. In recent months, the number of unicorns has nearly tripled, rising from 54 at the beginning of 2017 to 158 in the second quarter of 2018, according to the report.