Challenger bank Dave to go public through $4 bn SPAC deal  Crowdfund Insider. : American Challenger bank and personal finance app Dave has announced that it plans to go public through a merger with a blank-check firm sponsored by investment firm Victory Park Capital. With this, the banking app’s valuation has ballooned to $4 billion amidst a pandemic that has boosted the need for online banking services. In a press statement, Dave said that over 10 million customers use its personal finance tools and about 1.3 million customers use its digital banking platform.