A major SPAC deal just landed in London. Mayflower, backed by a former Lehman Brothers executive, pulled off a $500 million IPO on the London Stock Exchange. The blank-check company's successful debut marks another significant moment for the European SPAC market, which has been gaining momentum lately.

The fundraising comes at an interesting time when traditional finance veterans are increasingly exploring alternative listing mechanisms. With half a billion in the war chest, Mayflower now has serious firepower to hunt for acquisition targets. The involvement of ex-Lehman leadership adds a layer of credibility—and perhaps some lessons learned from past financial turmoil.

SPAC vehicles continue proving they're not just an American phenomenon. This London listing could signal renewed confidence in the UK capital markets.