GP Stakes Pioneer: Building Firms, Not Just Funds

What's New

Erik Serrano Berntsen, CEO of Stable Asset Management, sat down with Alt Goes Mainstream to detail how the GP stakes model has evolved from a niche alignment tool into a core infrastructure layer for alternative asset management. Stable, which has built over 40 firms and manages roughly $5B since its founding in 2006, now writes checks of $100M to $300M to seed and accelerate GPs across private credit, private equity, and specialty strategies.

Why It Matters As alternatives go mainstream and the minimum viable scale for launching a GP rises sharply, the traditional "start it in your garage" model is increasingly obsolete. GP stakes firms like Stable are filling that gap, not just with capital but with operating infrastructure, talent acquisition support, and LP relationships, effectively industrializing firm creation and changing the incentive architecture of the entire asset management industry.

Big Picture Drivers

• Incentive misalignment: As GPs scale, management fees displace performance as the primary income driver, creating an adversarial dynamic with LPs that GP stakes structures directly counteract by making the LP a co-owner of the GP itself.

• Operating system gap: Most investment firm failures are driven by non-market risks such as talent loss, regulatory issues, and IR breakdowns, not portfolio underperformance, a dynamic most founders are structurally unprepared for.

• Private credit tailwinds: Post-GFC bank regulation displacement continues to drive capital formation in private credit, which Stable identified as early as 2019, making it the dominant strategy for new GP formation right now.

• Evergreen acceleration: Smaller GPs backed by strategic capital can now offer evergreen structures previously associated only with mega-platforms, unlocking both the wealth channel and institutional re-ups in a single vehicle.

• Talent inflection point: Mid to late 30s professionals with 10 to 15 years of platform experience represent the core entrepreneurial cohort, and the availability of institutional seeders like Stable is actively lowering the perceived risk of launching.

By The Numbers

• 43 firms built by Stable since 2006

• $5B in assets under management across the portfolio

• $100M to $300M typical check size per investment

• 30 to 50% AUM growth rates across Stable's portfolio vs. high-single-digit industry average

• 4 weeks minimum time to operationally set up a new GP from scratch, though typically 6 to 12 months due to non-compete constraints

Key Trends to Watch

• Bifurcation is accelerating: Private markets are following the hedge fund industry's trajectory toward a world where 60 to 70% of AUM consolidates into multi-strategy platforms, while 20 to 30% stays with specialist managers optimizing for culture and independence rather than scale.

• Evergreen structures are redefining strategy selection: Private credit is near-universally suited for evergreen capital, while private equity and real assets face structural friction around liquidity, making asset class fit a first-order decision for GP design.

• Stigma around GP seeding has collapsed: Flagship managers including Blackstone and Vista were themselves seeded, and LPs are now actively preferring GPs where they hold a stake, turning alignment economics into a sourcing and retention advantage.

• Communication edge is the new performance edge: In an era of social media and democratized information, the ability to distill complex risk-reward frameworks into clear, compelling narratives is increasingly the differentiating factor between GPs that scale and those that plateau.

Memorable Quotes

• "People don't invest money with people they think are the best. They invest money with people they like." Attributed to Steve Schwarzman, cited by Berntsen as a foundational insight into relationship-driven capital formation. The point: fiduciary trust and likability compound faster than raw return alpha, especially as firms grow beyond early institutional relationships.

• "The biggest risks in running an asset management business are non-market risks." Berntsen's core thesis, repeated throughout the conversation. Most GP failures trace back to talent exits, operational breakdowns, or IR missteps, not bad trades. Founders who conflate portfolio volatility with business fragility never fully insulate the operating system.

• "You can lose money as long as you lose money the way you said you would. You can't mess up the business side. That's unforgivable." The sharpest distillation of the LP trust framework. LPs price in investment risk. They do not price in process violations, communication failures, or governance breakdowns. The business side is where reputations permanently break.

• "I convince people who don't need my money to please take my money." Berntsen on sourcing the best GP talent. The best founders have options. The capital pitch is table stakes. The real pitch is the operating system, the founder-to-founder bond, and the availability of a partner who has already walked the same path.

• "Follow your talent, not your passion." A direct challenge to the dominant entrepreneurial mythology. The billionaires preaching passion often made their fortunes in unglamorous industries. Talent compounds. Passion is a lagging indicator of competence, not a leading one.

• "It's easier to pick tides than boats." Berntsen's investment framework in six words. Structural tailwinds do more work than individual manager selection. Identify the tide first, then pick the most differentiated boat within it.

The Wrap Stable's 20-year run is a proof of concept for a simple but underappreciated thesis: building great investment firms is itself a distinct skill set, one that requires capital permanence, operating infrastructure, talent continuity, and deep founder empathy. As minimum viable scale rises and the industry bifurcates between mega-platforms and specialist independents, the GP builder model sits at the intersection of both trends, providing the capital and operating system that turns talented investors into durable businesses. The managers who will win the next decade are the ones who figure out that self-awareness, not just returns, is the real edge.