Dan Sundheim is on a roll.
D1 Capital’s public equity book returned roughly 10% in June, a person close to the manager told Business Insider.
That put the fund at 25.7% through 2026’s first half, the person added — outperforming the tech-heavy Nasdaq 100 index and the S&P 500, which were up roughly 19% and 10% through the same time period, respectively.
Despite being known as a tech investor, D1 began the second quarter with big holdings in companies such as building materials manufacturer James Hardie International and US Foods, both of which are up more than 20% on the year, according to regulatory filings. D1 Capital, which manages roughly $40 billion, declined to comment.
One thing that didn’t drive returns in Sundheim’s fund was SpaceX. While D1 held a significant stake in Elon Musk’s rocket maker via its private markets fund, the shares in the recently IPO-ed company are still held in that fund, not its public equities book, a person close to the New York-based manager said.
The manager was not the only member of the extended Tiger Management family tree — which includes dozens of funds run by portfolio managers with connections to the late investor Julian Robertson — that had strong Junes.
Glen Kacher’s $1.6 billion Light Street Capital made 11.9% last month in the manager’s long-short fund, a person close to the California-based firm said. This pushed the fund’s 2026 gains to more than 37%.
Philippe Laffont’s Coatue Management, meanwhile, bounced back from a rough first quarter, when the manager lost more than 3%, to end the first half of the year up 24.5%. The firm gained 4.7% in June alone, a person close to the firm said.
The managers declined to comment on the specific drivers of their outperformance last month, but federal filings reveal the firms’ biggest public holdings at the start of the quarter.
Coatue and Light Street remain heavily focused on artificial intelligence companies, with big bets on Taiwan Semiconductors and Broadcom.
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