The battered $24 billion hedge fund founded by former OpenAI researcher Leopold Aschenbrenner is unwinding many of its trades after big losses on artificial intelligence stocks and a bad bet against software stocks left it scrambling to raise cash, according to people familiar with the matter. The prime brokers for the fund, Situational Awareness, have…
Hedge fund short-sellers have ramped up bets against U.K.-listed stocks this year, with disclosed positions surging fivefold in the first half of 2026. Now, investors believe a policy blitz under new Prime Minister Andy Burnham could widen the opportunity set across U.K. equities on both the long and short sides of their portfolios. Burnham took…
BlackRock is applying hedge fund strategies to its exchange-traded fund business. Jeffrey Rosenberg, the firm’s senior portfolio manager on the systemic fixed income team, has a leading role in the firm’s liquid alternatives ETFs — which use a long-short strategy in ETF wrappers. He contends the strategy provides valuable diversification amid the recent breakdown in…
Company: Appian Corp. (APPN) Business: Appian provides business process management (BPM) solutions. Its products include BPM software, case management, mobile application development and platform-as-a-service. The company was founded by Matthew Calkins, Robert Kramer, Marc Wilson and Michael Beckley in 1999 and is headquartered in McLean, Va. Stock Market Value: $1.86B ($25.21 per share) Activist: Fivespan…
Company: CoStar Group Inc (CSGP) Business: CoStar Group engages in the provision of online real estate marketplaces, information, and analytics in the commercial and residential property markets. It operates through the following segments: CoStar Portfolio, Information Services Portfolio, Multifamily Portfolio, LoopNet Portfolio and Other Marketplaces Portfolio. The CoStar Portfolio segment consists of two classes of…
Company: BlackLine Inc (BL) Business: BlackLine provides financial accounting solutions delivered primarily as Software as a Service (SaaS). The company’s solutions enable its customers to address various aspects of their critical processes, including financial close, intercompany accounting, invoice-to-cash, and consolidation. BlackLine’s cloud-based solutions include account reconciliations, transaction matching, task management, journal entry, variance analysis, consolidation…
Timon Schneider | SOPA Images | AP Company: Integer Holdings Corp (ITGR) Business: Integer Holdings Corporation is a medical device contract development and manufacturing company. Its brands include Greatbatch Medical and Lake Region Medical. The company’s Cardio & Vascular product line offers a range of components, subassemblies, and finished devices used in interventional cardiology, structural…
Jeff Greenberg | Universal Images Group | Getty Images Company: Lululemon Athletica Inc. (LULU) Business: Lululemon Athletica is a technical athletic apparel, footwear, and accessories company. The company organizes its operations into four regional markets: the Americas, China Mainland, Asia Pacific (APAC), and Europe and the Middle East (EMEA). It conducts its business through different…
Ken Griffin, founder and CEO of Citadel, speaks to the Economic Club of New York at The Plaza Hotel in New York, Nov. 21, 2024. Brendan Mcdermid | Reuters Billionaire investor Ken Griffin’s flagship hedge fund at Citadel climbed double digits in 2025, navigating a volatile year marked by sharp market swings, trade tensions and…
Company: LKQ Corp. (LKQ) Business: LKQ engages in the distribution of replacement parts, components, and systems used in the repair and maintenance of vehicles and specialty vehicle aftermarket products and accessories. The company operates through four segments: wholesale-North America, Europe, specialty, and self service. It offers bumper covers, automotive body panels, and lights, as well…
