The Case for Private Equity in Individual Investor Portfolios

Introduction

Private equity has evolved since its inception: we no longer call deals “bootstrap investments” and assets under management across the asset class now exceed $10.5 trillion. Beyond verbiage and size, private equity is also becoming more widely accessible thanks to evergreen vehicles.

In this article, we will discuss 1) why investors look to include a private equity allocation in their portfolios and 2) how individuals can implement that allocation. Using macro perspectives and case studies, we will show how private equity is no longer an “alternative” investment, but a core, alpha-generating equity holding with a structural place in all portfolios seeking to optimize risk-adjusted returns.

1. Why Private Equity Belongs in Every Return-Maximizing Portfolio

Persistent Alpha through Active Ownership

Private Equity’s edge is rooted in its ability to create — not merely capture — value. Through active and direct ownership, strong managers can control their own outcomes by driving strategic transformation, optimizing operations, upgrading management teams, and developing new vectors for growth. This active ownership model is what distinguishes private equity from the typically passive nature of public equity investing.

Historical data shows this in multiple ways. According to Cambridge Associates, global private equity has outperformed public markets by over 500 basis points on average over the last 25 years, which we believe is due to the active role private equity investors play as owners and operators of businesses.

EXHIBIT 1: Net Annualized Performance of Global Private Equity Index vs. Public Equities

When we incorporate historical returns, volatility, and correlations in a Monte Carlo simulation designed to optimize performance for individuals, the model recommends a 15% allocation to private equity given its superior return potential and “illiquidity premium,” which is still present even in evergreen vehicles.¹ Historically, this 15% allocation, alongside a 15% allocation to other private markets investments like infrastructure, credit, and real estate, raises expected portfolio returns by more than 100 basis points per year while reducing volatility, largely due to lower correlation with public markets (as a result of factors like control-oriented management, different risk return drivers, and long-term hold periods) and reflecting valuations largely driven by company fundamentals, not market sentiment. Over long horizons, the compounding impact is profound.

Incorporating realized annual returns into the Monte Carlo simulation shows that portfolios with even modest private equity commitments shift the efficient frontier upward, providing higher expected returns for each unit of risk.

EXHIBIT 2: Private Equity Exhibits a Higher Return Per Unit of Risk

Realized Annual Returns and Volatility Comparison with Traditional Assets and Private Equity, %

A Broader, More Dynamic Opportunity Set

The case for private equity is also structural. Public markets have become narrower and more concentrated, while private markets have grown in both depth and diversity. Since 2000, the number of publicly listed U.S. companies has declined by nearly 50%, even as private companies with over $100 million in revenue have multiplied. Today, 85% of such companies are privately held, and the number of PE-backed companies has exceeded listed companies since 2012. So, portfolios with only public markets in their long equity bucket are missing out on a large and growing swath of value that exists in the private markets.

EXHIBIT 3: Publicly Traded Stocks Represent Only a Small Fraction of the World’s Companies

American Public Companies Compared to the Number of Private Companies with 50+ employees

This evolution has shifted the focus to value creation and return generation. Much of the innovation and earnings growth that once occurred after an IPO now happens before a company goes public. For investors seeking exposure to the full life cycle of corporate growth, private equity provides unique access.

Today, the S&P500 is over one-third concentrated in the “Magnificent 7,” “mega-cap” tech companies with massive artificial intelligence capex spending. In order to diversify away from this size and sector concentration, investors often look to public small cap stocks. While many argue the “small cap premium” has disappeared in markets, KKR’s U.S. Macro team asserts this is only true in public equities. The “small cap premium” remains evident in private equity. At KKR, for example, the average size of portfolio companies in our private equity business is $2-$5 billion in enterprise value, which is analogous to the typical publicly traded small and mid-cap stock. Where sustained growth and diversification no longer exist in public markets, private equity can fill the gap.

EXHIBIT 4: Private Equity Provides Better Access to ‘Growth’ Sectors Relative to the Russell 2000

Burgiss North American Buyout vs Russell 2000 (Sector Composition)

Risk Management through Control and Discipline

Private equity’s risk profile is often misunderstood. While leverage is a feature, it is far from the foundation of returns. In fact, operational improvement — not financial engineering — has become the dominant driver of performance.

Probably the purest form of private equity alpha is company value creation. It represents the ability of the manager to effect changes to the underlying company operations and function to generate higher growth or command higher multiples than would a set of ‘equivalent public stocks.’

Equally important is the discipline with which private equity managers deploy and harvest capital over time. Unlike public market investors who must react to price movements in real time, private equity sponsors with robust deployment engines like KKR can invest consistently across cycles, leaning into dislocations and staying disciplined in hotter environments. At KKR, we implemented linear deployment following the GFC because the reality is it is very hard to predict attractive vintage years. So, we deploy consistently, finding the best opportunities each year and relying on what we can do to make a company better to drive returns.

This “linear” pacing functions as a structural advantage. It smooths the return experience, mitigates the pitfalls of market timing, and enables portfolios to compound through volatility rather than be defined by it. Over full cycles, this temporal discipline has been a quiet but powerful contributor to private equity’s lower volatility and more consistent performance profile.

2. How to Implement Private Equity in Individual Portfolios

Private equity remains a powerful driver of portfolio performance, and provides access to a diversified set of sectors. For investors seeking stronger long-term returns and greater resilience, incorporating private equity into a diversified portfolio, alongside other private markets investments as demonstrated below, can enhance performance, broaden opportunity, and better navigate market uncertainty relative to a traditional 60/40 allocation.²

EXHIBIT 5: Example Portfolio with Implementation of Alternative Asset Exposure

Manager Selection is Critical

Importantly, manager quality and diversification should remain central considerations when incorporating private equity, and any alternatives, into an investing program. On the point of quality, there is a significant dispersion of returns in private markets, unlike on the public side. The difference between the performance of top-quartile private equity managers and bottom-quartile private equity managers is 1,400 basis points. It follows that selecting a manager with a consistent, strong track record of performance through various cycles is critical.

EXHIBIT 6: Manager Selection Has a Greater Impact on Returns in the Buyout Space Relative to Traditional Active Equity Managers

Diversification within the Asset Class

Private equity is a broad asset class with investment strategies spanning the risk-return spectrum from early-stage venture capital to more mature buyout investing.

At the earliest stage is venture capital, often characterized as “high risk, high reward,” where investors back young companies with strong growth potential but limited operating history, and often a high loss ratio. Next is growth equity, which targets more established businesses that require capital to scale and accelerate expansion. At the far end of the spectrum is buyout investing, which involves acquiring control of mature, established businesses.

EXHIBIT 7: Common Private Equity Strategies, Each with Unique Risk and Return Characteristics

At KKR, our focus is on growth equity and buyout strategies. Diversified exposure across this risk spectrum is essential to maximizing both an investor’s participation in private equity and their long-term return potential.

Growth equity targets businesses with established products, proven business models, and meaningful revenue scale. These companies often prioritize reinvesting cash flow into expansion and product development rather than generating steady free cash flow, and their earnings are less predictable, making high leverage levels unsuitable. Consequently, a growth equity deal’s capital structure is primarily equity with limited or no debt, to provide flexibility for continued growth initiatives and absorb volatility in performance. This structure appropriately capitalizes risk by avoiding debt obligations that could constrain growth or liquidity, while allowing investors to participate in performance upside through equity appreciation.

Buyout investing focuses on control-oriented ownership of business with established market positions, predictable earnings, and stable cash flows. These companies are often past their high-growth phase and have the operating scale and balance sheet robustness to support some degree of leverage. While buyout deals don’t always use leverage and leverage levels have reduced by about a third in the last ten years when implemented, the use of leverage generally reflects the lower business risk and cash flow visibility of the company. This strategy also disciplines capital allocation, encouraging operational improvements, cost optimization, and strategic repositioning to drive earnings growth and cash generation.

For investors, a thoughtful allocation across these strategies enhances diversification, captures a broader share of the private market opportunity, and supports more consistent returns across market cycles.

Core-Satellite Construction for Wealth Portfolios

Historically, individuals have not been able to access drawdown private equity funds because of the operational complexity required to maintain a well-diversified and scaled allocation. Evergreen vehicles can offer an operationally easy and efficient way to achieve diversified, stable, continuously compounding private equity exposure. Some investors may use an evergreen vehicle as a core private equity commitment and expand exposure into high-conviction sectors or geographies through drawdown funds to support their investing goals.

This core-satellite approach mirrors the architecture used by leading institutional investors but adapts it for the scale and liquidity preferences of private wealth. The result can be a more balanced, resilient, and compounding portfolio.

Moreover, evergreen allocations can act as a reinvestment hub for proceeds from maturing drawdown funds, keeping overall exposure stable without manual reallocation. This circular compounding effect — capital returning and immediately being redeployed — is a key advantage for investors seeking to maintain consistent private market exposure through time.

Exhibit 8: Blending Drawdown and Evergreen Structures Could Produce Higher Compounded Returns over Time

Conclusion

A thoughtfully constructed private equity allocation can enhance portfolio resilience through broad geographic exposure and access to a diverse mix of deal types — from buyouts and growth equity to opportunistic and thematic investments — each responding differently across economic cycles. This breadth not only expands the opportunity set but also helps mitigate single-market and single-strategy risk, key to long-term wealth preservation and growth.

The next phase of wealth management will not be defined by the old 60/40 model, but by access, flexibility, and persistence.

In an uncertain world, the ability to own, improve, and compound through cycles remains a timeless source of value.

REFERENCES

¹ Monte Carlo simulation is a mathematical technique that help can help asset allocators understand uncertainty and risk by running thousands of random scenarios. One way to think about it is playing out a game of chance thousands of times to see all possible outcomes. Instead of making a single prediction about what might happen, it can show the full range of possibilities and how likely each one is.

² To do so, it is important to thoughtfully reduce allocations to equities and fixed income in a manner consistent with portfolio objectives and to consider asset class performance, volatility, and correlations between asset classes.