A boost in perpetual capital and Bumble's lucrative IPO helped drive Blackstone to new heights in the first quarter. : This is a preview of Deal Flow, a new daily newsletter about big buyouts, big acquisitions and Big Finance. Like what you see? Subscribe here. I’d like to start today with a big thank you to everyone who joined me for the first week of Deal Flow. There was plenty to cover, that’s for sure: Five newsletters and more than 12,000 words on everything from railroad rivalries to edible insects.