D1 Capital Partners: Platform Profile

Overview

D1 Capital Partners is a New York investment manager founded by Dan Sundheim in 2018. Its platform combines fundamental public-market investing with later-stage private investments, making it a crossover manager rather than a public-equity-only hedge fund.

May fit better for

• investors seeking public/private crossover exposure;
• qualified investors comfortable with concentrated equity risk;
• allocators able to evaluate private-company valuation and liquidity;
• investors who understand that 13F is a filing measure, not firm NAV.

May fit less well for

• retail users seeking self-service access;
• investors requiring daily liquidity across the full portfolio;
• users who treat 13F value as regulatory AUM;
• investors seeking one universal minimum.

Current regulatory AUM is $40.2B

• Regulatory AUM: $40.2B
• Regulatory AUM as of: 2026-03-31

Q2 2026 13F value is $34.783B

• Q2 2026 13F value: $34.783B
• Q2 2026 13F as of: 2026-06-30
• Form 13F market value equals regulatory AUM: No
• Form 13F equals complete portfolio: No

The Q2 filing includes a very large Space Exploration Technologies position. That makes the filing materially different from older quarters and reinforces that it is not interchangeable with regulatory AUM.

Public and private markets are both core

• Public equities: Yes
• Private equity: Yes
• Later stage private investing: Yes
• Fundamental research: Yes
• Medium to long term orientation: Yes

D1 Capital Partners Master LP is a vehicle, not the manager

Current fund databases report:

• D1 Capital Partners Master vehicle minimum: $2M
• Vehicle minimum is universal manager minimum: No

Separate D1 private-equity and co-investment vehicles exist. Their gross assets and minimums must remain vehicle-specific.

Assessment

D1's defining issue is crossover accounting. Regulatory AUM, a large 13F, hedge-fund gross assets and private-equity vehicle assets describe different slices of the platform.