Uber had the worst first-day dollar loss ever of any US IPO

Uber started trading on Friday in an initial public offering that valued the company at $75.5 billion.
By the end of day Friday, the stock was trading down 6.7% off the $45 a share, where the company had priced on Thursday night. 
With a cumulative loss of $655 million, it's the worst first-day dollar loss of a US IPO. 
Visit Business Insider's homepage for more stories.The much-anticipated Uber initial public offering managed to break a record, but not one that investors would've hope