D1 Capital Partners

Daniel Sundheim is the founder and chief investment officer, holding final authority over the portfolio. Sundheim spent over a decade at Viking Global Investors, serving as CIO before departing in 2018. The senior investment team includes former Viking colleagues and analysts recruited from other Tiger-aligned funds, but the firm's investment process is centralized around Sundheim's macro and idea-generation framework.

D1 operates a hybrid structure. Roughly half of the firm's capital is deployed in a concentrated long/short public-equity book, while the remainder funds private, growth-stage companies. This dual mandate is unusual — few Tiger Cub firms run both deeply concentrated public portfolios and $100M+ private rounds under one roof. The firm is structured as a private investment partnership, not a multi-vehicle platform.

D1's private investments often fall in the $100M to $250M range, with the firm leading or co-leading late-stage and pre-IPO rounds. In 2020, D1 co-led a $200M round in Instacart that valued the company at $17.7B (per The Wall Street Journal, 2020). The firm's scale allows it to act as a single counterparty for growth companies seeking concentrated capital without syndicate complexity.

D1 has not publicly outlined hard exclusions, but its disclosed portfolio leans heavily toward technology, consumer internet, fintech, and healthcare. Public filings show minimal exposure to traditional energy, metals, and mining, or heavy industrials. The firm appears to favor asset-light, compounding businesses consistent with its Tiger Cub lineage.

Sundheim's network — built over two decades at Viking and through the extended Tiger Cub ecosystem — is the primary sourcing mechanism. D1 competes with Sequoia, a16z, and Tiger Global for late-stage allocations, often winning mandates by offering larger, faster, and less dilutive single-investor checks. The firm does not operate a formal venture-studio or entrepreneur-in-residence program.

No. D1 is structured exclusively for institutional limited partners, including university endowments, sovereign wealth funds, charitable foundations, and family offices. The firm has never offered a registered liquid vehicle, ETF, or interval fund, and its private-side allocations are inaccessible to accredited retail investors.