Updates shares at debut
** Shares of digital banking startup Chime Financial CHYM.O open 59.3% above IPO price in their Nasdaq debut on Thursday
** Stock opens at $43 vs $27 IPO price, giving it a fully-diluted valuation of $18.4 billion
** San Francisco, California-based Chime, along with some of its investors, sold 32 million shares to raise $864 million
** Chime raised $750 million in a 2021 funding round at a $25 billion valuation
** Debut adds to the recent streak of stunning first-day gains for new listings
** Space tech firm Voyager's VOYG.N shares more than doubled on their debut on Wednesday
(Reporting by Arasu Kannagi Basil and Ateev Bhandari in Bengaluru)
((ArasuKannagi.Basil@thomsonreuters.com;))