Ethan Brown, founder and CEO of Beyond Meat, prepares to ring the opening bell to celebrate his company's IPO at the Nasdaq Market site in New York, May 2, 2019.

Shares of Beyond Meat, which makes plant-based meat substitutes, surged more than 14% on Tuesday, adding to their stellar start in the public market.

There was no clear catalyst for the stock's move up other than continued momentum following its successful IPO.

Beyond Meat celebrated its IPO on May 2. Its stock skyrocketed 163% that day, marking the best initial public offering of 2019.