Firefly Aerospace raised $868 million in its upsized IPO, pricing shares at $45, above the expected range. The moon lander and rocket maker will debut on Nasdaq as ‘FLY’ with a $6.5 billion valuation. Retail investors are extremely bullish as Q1 revenue jumped to $55.9 million and the backlog approaches $1.1 billion, marking a strong year for space IPOs.