In the Q2 2021 investor letter of RiverPark Funds, the fund mentioned The Blackstone Group Inc. (NYSE: BX ), and discussed its stance on the firm. The Blackstone Group Inc. is a New York, New York-based alternative investment management company, that currently has an $82.3 billion market capitalization. BX delivered a 76.35% return since the beginning of the year, extending its 12-month returns to 117.61%. The stock closed at $114.29 per share on August 06, 2021.