Chime, a digital bank popular with younger customers, is the latest tech firm to go public. The stock will begin trading Thursday under the ticker symbol CHYM.

It's fair to say that investor demand for long-awaited IPOs is back. Online banking company Chime (NASDAQ: CHYM) finally went public after years of stagnation in the fintech IPO pipeline, and to call it a successful public debut would be a bit of an understatement.

Chime's strong debut is seen as a positive sign for the U.S. IPO market, which has been sluggish for several years. But that may be changing.