The Seven Superpowers Private Equity Brings to Long Term Investors

Most investors understand that diversification matters. But here is something you may not think about every day: public markets represent just 13% of U.S. companies generating more than $100 million in revenue. That means 87%, over 19,000 established businesses, operate entirely outside the exchanges.

If you are investing only in public stocks, you are seeing just a small slice of the opportunity set.

Below are seven ways adding private equity can strengthen your long-term portfolio.

1. Unlocking Hidden Opportunities Beyond the Public Markets

A private equity allocation plays a purposeful role in your long-term investment plan. It gives you access to parts of the economy that aren't represented on a traditional stock exchange, much like ordering from a limited menu at a fine restaurant. These are often businesses that are growing, evolving, and shaping the future long before they ever consider going public. Many of the most innovative companies never list at all. Only 13% of U.S. companies with more than $100 million in revenue are publicly traded, which means more than 19,000 comparable companies remain private1. The public markets are like the basic items listed on a regular menu, easily accessible but not necessarily offering the full range of exclusive options. Private equity allows you to explore those deeper, often overlooked opportunities that can have a greater impact on your portfolio over the long term

2. A Hands-On Approach to Driving Growth and Value

Private equity takes a more hands-on approach to value creation. Unlike public markets, where returns are influenced by broader economic trends and market sentiment, private equity allows you to work with managers who are actively involved in shaping the companies they own. They focus on improving operations, strengthening leadership, streamlining processes, and driving growth. In private equity, you’re partnering with experienced operators who are focused on increasing its value over time.

3. A Portfolio Component That Doesn’t Flinch at Every Headline

Private companies aren’t priced minute by minute, so their valuations don’t react to every headline or market mood. That doesn’t eliminate risk, but it does create a steadier experience. The quarterly appraisal cycle helps reduce the emotional noise that can come with public market volatility. Think of it like flying above the weather: the turbulence still exists, but you’re not feeling every bump, and that makes it easier to stay focused on where you’re going.

4. Embraces a Long-Term Mindset for Steady, Compounding Growth

Private equity also rewards a long-term mindset. When you commit capital, you’re agreeing to a multiyear investment period, and in return, you earn what’s known as the illiquidity premium. It’s the additional return investors receive for giving managers the time and stability they need to execute their strategy. This fits naturally with long-term planning, where the goal is steady, compounding growth rather than short term trading. For investors who don’t need every dollar to be liquid at all times, this trade-off can be a meaningful advantage.

5. A Counterweight to the Mega Cap Heavy Public Markets

Private equity also helps balance the concentration risk that exists in today’s public markets. A small group of very large companies drives a disproportionate share of index performance. While those companies may continue to do well, relying too heavily on them can create imbalance. Private equity broadens your exposure to smaller, more diverse businesses across a wide range of industries. That diversification strengthens the overall resilience of your portfolio and reduces dependence on any single sector or trend

6. Return Engines You Can’t Access on an Exchange

Private equity also gives you access to return drivers that simply don’t exist in public markets. Twenty years ago, companies went public to grow. Today, they grow to go public or don't go public at all. By the time a company hits the NYSE or NASDAQ, much of its 'hyper-growth' phase may already be in the rearview mirror. Private equity allows you to capture that appreciation phase.

7. The Missing Piece That Makes a Portfolio Feel Complete

Ultimately, the goal of including private equity in your portfolio is to build something more robust, more diversified, and more aligned with how real businesses create value. It complements your public market exposure, adds another lower correlated asset class, and supports a long term, goals based approach. While private equity isn’t right for every dollar you invest, it can play a powerful role when used thoughtfully and in the right proportion. Our job is to ensure that any allocation fits your overall plan, your time horizon, and your comfort with the structure.  Our concern is that it enhances your long-term outcomes in a way that’s intentional, disciplined, and aligned with what matters most to you.

If this approach reflects the way you want your wealth stewarded, we’d welcome a conversation. At Altman Advisors, every allocation is crafted with intention, discretion, and a deep respect for your long term vision.

Source: Data via S&P Capital IQ and Hamilton Lane analysis.

Disclosure: The content is developed from sources believed to be providing accurate information. The information in this material is not intended as tax or legal advice. Please consult legal or tax professionals for specific information regarding your individual situation. The opinions expressed and material provided are for general information and should not be considered a solicitation for the purchase or sale or any security. Altman Advisors is a Registered Investment Adviser. This content is solely for informational purposes. Advisory services are only offered to clients or prospective clients where Altman Advisors and its representatives are properly licensed or exempt from licensure. Past performance is no guarantee of future returns. Investing involves risk and possible loss of principal capital. No advice may be rendered by Altman Advisors unless a client service agreement is in place.