RNAQU ▲ +0.3% - Rainier Acquisition Corporation Units $RNAQU RNAQ RNAQW - Rainier Acquisition Corporation Announces Closing of $75,000,000 Initial Public Offering Rainier Acquisition Corporation completed its $75 million initial public offering, with units trading up 0.3% today. The modest gain reflects typical post-IPO trading as the blank-check company begins public market operations and investors position themselves ahead of the company's planned business combination search. 28-AUG-2026 03:15 PM ET