Most people who say they want to invest in private equity don't know what they're actually agreeing to. They hear "PE" and picture leveraged buyouts and billionaires. What they're actually signing up for is a 10-year partnership with a blind pool, a capital call schedule, and a fee structure that rewards patient capital.
Here's the mechanics. Stripped down. No guru framing.
The blind pool
A private equity fund is a blind pool. Limited partners commit capital without knowing which specific companies will be acquired. The general partner — that's the firm — decides where to deploy.
You're not buying a portfolio of named companies. You're buying a GP's judgment, deal sourcing network, and operational execution capability. If you don't believe in those three things, don't sign the subscription agreement.
The typical lower-middle-market fund runs $100M to $500M in committed capital. Large-cap PE runs in the billions. The legal structure is identical across both. The deal size, leverage profile, and competitive dynamics are not.
LP and GP: the actual roles
Limited partners supply the capital. Institutional investors — pension funds, endowments, family offices, accredited individuals with sufficient liquidity. LPs receive the economic returns but have no role in day-to-day investment decisions. Their liability is capped at their committed capital.
General partners raise and deploy the fund. They source deals, conduct diligence, structure acquisitions, operate portfolio companies, and manage exits. GPs make operating and investment decisions. They also have skin in the game — most institutional-quality GPs commit 1-3% of fund capital from their own balance sheets. That alignment matters. A GP who doesn't invest in their own fund is a red flag.
Management fees: the operating budget
Management fees run approximately 2% of committed capital annually during the investment period — typically the first five years of a fund's life. After the active investment period closes, the fee often steps down to 2% of invested capital (what's been deployed, not the total raise).
On a $200M fund, that's $4M annually during the investment period. This covers salaries, travel, diligence costs, legal expenses, and firm overhead. It is not profit. It is the operating engine that keeps the fund functional between closings and exits.
Some GPs negotiate lower fees in exchange for co-investment rights or anchor LP commitments. The 2% figure is a market convention, not a law of physics. But walking into a fee negotiation without a track record to leverage typically produces no discount.
Carried interest: aligning incentives
Carried interest — "carry" — is the GP's share of profits above the return threshold. Standard is 20%.
Carry does not activate until LPs receive their capital back plus a preferred return. Most institutional PE fund agreements specify an 8% preferred return — the hurdle rate. LPs must earn at least 8% annually on invested capital before the GP takes a dollar of carry. This is the incentive alignment mechanism: the GP only wins when the LP wins first.
After the preferred return is met, the distribution waterfall works as follows:
1. Return of capital. LPs receive their committed capital back in full before any profit is distributed.
2. Preferred return. LPs receive their 8% annual return on invested capital. This accrues from the date of each capital call.
3. GP catch-up. After the preferred return clears, the GP receives 100% of distributions until they've "caught up" to their full carry percentage. On a standard 80/20 split, this means the GP collects until they hold 20% of the total profits earned to that point.
4. 80/20 split. Remaining profits split 80% to LPs, 20% to GP.
The math: if a $200M fund returns $360M at liquidation, the gross profit is $160M. After working through the preferred return and catch-up mechanics, the GP's carry approximates $32M. LPs net the remainder, plus their original $200M. That's the model.
Capital calls: don't write one check
LPs don't wire their full commitment at closing. The GP draws capital over time — typically 3-5 years — through capital calls tied to specific investment opportunities.
A $1M LP commitment in a lower-middle-market fund might be drawn in four or five tranches over three years as the GP identifies and closes acquisitions. LPs must maintain liquidity to fund each call, typically within 10-30 days of notice. Failure to fund a capital call can result in penalties, dilution, or forced sale of the LP's interest at a discount.
This is not a passive investment. The liquidity demand is real and unpredictable.
The upside: uncalled capital sits on the LP's balance sheet earning returns elsewhere until deployment. In a rising-rate environment, that float has value.
Co-investments: the fee-free layer
Most institutional GPs offer co-investment rights to their largest LP relationships. A co-investment is a direct stake in a specific deal alongside the main fund — typically offered at no management fee and reduced or zero carry.
Co-investments allow LPs to increase exposure to their highest-conviction positions without paying the full 2-and-20 on that incremental capital. They require faster diligence turnaround — often 2-3 weeks — and deeper deal-level analysis capability. LPs without in-house investment teams typically pass on co-investments. Those with the infrastructure to underwrite fast use them to compress blended fees significantly.
For lower-middle-market funds with smaller deal sizes, co-investment opportunities are more frequent and accessible than in large-cap PE, where the minimum bite sizes can be prohibitive.
Hold periods: this capital is locked
Lower-middle-market PE funds carry 10-year fund lives with options to extend 1-2 years. The active investment period runs 3-5 years. The harvest period — exits and distributions — fills the remaining time.
Individual investments typically hold 4-7 years. The GP's job is to acquire, improve operationally, and exit at a higher multiple than entry. Exit timing depends on company performance, market conditions, and buyer availability — not a calendar date.
This is illiquid capital. There is no redemption window. Secondary markets for LP interests exist but trade at discounts to NAV. LPs who need liquidity inside five years should not be in private equity.
The J-curve: why early performance looks negative
Year one through three of a PE fund typically shows negative net performance. Management fees accrue. Investments sit at cost or marked down for diligence adjustments. No exits have occurred to generate realized returns.
This is the J-curve. It is structural. It is not a warning sign.
As investments are held, operational improvements compound, and values are marked up by third-party appraisers — then as exits occur — the fund climbs into positive territory. Funds that exit large positions in years 4-6 often accelerate sharply. The funds that look worst at year two frequently outperform at year eight.
Investors who judge PE performance on a two-year track are reading the wrong data. This is a patient capital game.
Lower middle market vs. large-cap: why the structure matters more at smaller sizes
The legal mechanics are identical across fund sizes. The deal economics differ materially.
Lower-middle-market buyouts average 3.2x EBITDA in leverage for companies under $250M enterprise value, compared to 5.9x for transactions above $1B, according to data aggregated from mid-market lending surveys. Lower leverage means smaller debt service burden on portfolio companies, simpler capital structures, and more room to absorb operational error.
Entry multiples in the lower middle market typically run 4-7x EBITDA versus 10-15x in large-cap. A $5M EBITDA business purchased at 5x costs $25M. A $50M EBITDA business purchased at 12x costs $600M. The same 30% EBITDA improvement produces a dramatically larger percentage return at the lower entry price — and competes with far fewer bidders.
Since 2000, mid-market buyout funds have delivered a median net IRR of 13.5% versus 12.7% for large buyouts, per Hamilton Lane's middle market analysis (https://www.hamiltonlane.com/en-us/insight/middle-market-private-equity). More return. Lower entry cost. Simpler operational execution. That's the structural case for the lower middle market.
One opinion
The 2-and-20 model collects criticism in conference panels and signed subscription agreements in the same week. That's the market settling the argument. When GP teams deliver consistent mid-teens net IRRs across full market cycles, LPs tolerate the fee structure because the alternative — underweight private equity and overweight public markets — produces demonstrably lower returns at similar risk over 20-year horizons.
Where 2-and-20 breaks down: mediocre GPs who collect management fees for years while producing index-fund returns with illiquidity premium stripped out. The fee model isn't broken. Inadequate GP selection is what breaks it.
Evaluate the GP before negotiating the fee. Due diligence on operator experience, sourcing edge, and track record across cycles is worth more than 50 basis points of fee reduction.
The evaluation framework
If you're considering a PE allocation, five questions before signing:
- What is the GP's track record across at least one full market cycle, including the 2008-2009 period or the 2020 dislocation?
- Is deal flow proprietary or auction-based? Proprietary flow produces better entry prices.
- Does the GP have operational depth — actual operators, not just bankers — to improve portfolio companies post-close?
- What is the fund's leverage target and covenant structure? Lower leverage means more resilience in a downturn.
- How does the GP report to LPs? Quarterly reports, audited financials, operational KPIs by portfolio company — or quarterly letters that describe progress without numbers?
The fund structure is standard across the industry. The lower-middle-market PE opportunity (https://patriotgrowthcapital.com/blog/lower-middle-market-private-equity) is not. The GP is the variable that determines where your capital lands on the J-curve and what the exit looks like on year seven.
Understand the mechanics. Then evaluate the people running them.
