https://www.cnbc.com/2019/04/10/lyft-shares-drop-to-a-new-low-as-experts-ahead-of-ubers-debut.html

Lyft shares were having their worst day yet on Wednesday as the stock tumbled 6% while investors expect its larger rival Uber to formally file to go public on Thursday. Lyft's drop also follows skepticism about the ride-hailing service's valuation from a top authority.

New York University professor Aswath Damodaran said Lyft should be traded closer to $59 per share with a valuation of $15 billion in an interview on CNBC's Fast Money Tuesday. That would wipe about $3 billion off its $18 billion valuation as of Wednesday morning and cut its share price by about $4.