Fiverr International (FVRR-7.72%) is a leading player in gig-labor marketplace services and has seen big valuation swings since going public in June 2019. The company's stock now trades down ...

Fiverr currently has 4.2 million buyers on its platform, and the company's take rate -- the percentage of money it keeps from transactions -- is an impressive 30%.

As quickly as gig economy workers rushed in to service the fast-expanding NFT space, they could be forced to adapt to the next big thing if—as some predict—the NFT bubble is about to burst.