After listing on the Nasdaq market on May 18, Hong Kong-based diagnostics and genetic testing company Prenetics Group Ltd. saw its shares fall nearly 30% in early trading, dropping from $8.40 per share on listing to $5.70 by the end of trading May 19. Trading under the ticker PRE, Prenetics formed a merger with Artisan Acquisition Corp., a special purpose acquisition company, which was founded by entrepreneur Adrian Cheng. The transaction values Prenetics at an enterprise value of $1.25 billion, making the company the first Hong Kong unicorn to list on the Nasdaq.