Why do roll-ups fail?

How does overpaying kill the arbitrage?

A roll-up makes money on the gap between what it pays for small companies and what the combined company is worth. Every turn of multiple you overpay comes straight out of that gap.

Overpaying usually happens in one of three ways:

• Paying platform prices for add-ons. GF Data's 2024 medians were 4.5x EBITDA for $1–10M companies and 6.5x for $10–100M. Pay 6.5x for a small company and there is no spread left.
• Treating SDE as EBITDA. SDE includes the owner's pay. Once you hire a manager, the multiple you actually paid is higher.
• Accepting weak add-backs. Every dollar of inflated earnings is bought at the full multiple.

Competition makes this worse. In HVAC, PKF O'Connor Davies counted 25 tracked deals in the first half of 2026, and 14 were private equity add-ons. Those buyers often have cheaper capital and will pay more than you should.

How much debt is too much?

SBA coverage ratios are minimums for making a loan, not targets for running a company. Under SOP 50 10 8.1, an Initial Acquisition needs 1.25x debt service coverage and a Business Expansion needs 1.15x, both on historical cash flow. Seller debt not on full standby counts in that test at a maximum 10-year amortization.

Debt is dangerous in a roll-up because problems arrive together. An integration stalls, a key manager leaves and a rate resets in the same year. SBA loans require personal guarantees from owners of 20% or more, so a failed roll-up can follow the owner home. Keep coverage well above the lender's floor and stress-test a bad year before you sign.

Why does integration fail?

Integration is where the arbitrage becomes real or disappears. It fails for ordinary reasons:

• The seller leaves and takes relationships with them. SBA rules allow a seller to stay as a consultant or employee for up to 24 months; use that window.
• Key staff quit because pay, schedules or software changed too fast, or not at all.
• Each company keeps its own books, so nobody can see consolidated results until the year is over.
• Earnouts tie the seller to their old company's numbers, so they resist changes that help the group. In general M&A data, only 63% of earnouts pay in full.
• The owner keeps doing deals instead of running what they bought.

Even good programs lose some deals. In our best client outcome, which was not a typical one, the founder made three acquisitions over seven years. One failed and was closed. The company still went on to sell for $240M in cash.

How does paying in stock go wrong?

Stock lets a roll-up buy without cash, but each share issued gives away part of every future dollar of profit. Castellum, listed on NYSE American, paid more than 80% of a roughly $6.6M acquisition in restricted stock. Its share count rose from about 53M to about 94.6M between March 2024 and March 2026.

• That is about a 78% increase in shares.
• A holder who owned 1% in March 2024, and bought nothing more, owned about 0.56% two years later.
• Per-share value rises only if profit grew faster than the share count.

The academic data points the same way. Completing an IPO raised a firm's annual probability of making an acquisition by about 12 percentage points, and about three-quarters of those extra deals were at least partly paid in stock. Those stock-paid deals were the ones that underperformed.

Worked example: how overpaying and debt combine

Assume an add-on earning $1M of EBITDA, a platform the market values at 6.5x, and debt at 10%, the maximum SBA variable rate for loans over $350,000 in September 2026 when prime was 7%. Check current prime; rates move. The 20% earnings drop is an assumption.

1. Disciplined price at 4.5x: $4.5M, plus about 2% deal costs ($90,000) = $4.59M. Value inside the platform at 6.5x: $6.5M. Gain: $1.91M.
2. Overpaid at 6.5x: $6.5M plus $130,000 of costs = $6.63M. Value: $6.5M. Loss: $130,000 before day one.
3. Borrow $4.5M at 10% over 10 years, an illustrative all-debt case (an SBA loan would also need at least a 10% equity injection). Annual payment, paid monthly: about $714,000. Coverage on $1M of EBITDA: about 1.40x, before taxes and capital spending.
4. Earnings fall 20% after the seller leaves: $800,000 ÷ $714,000 = about 1.12x. That is below the 1.15x a lender would have required to make the loan. Value at 6.5x falls to $5.2M.

A disciplined price absorbs a bad year. An inflated price plus debt does not.

What are the early warning signs?

• You are signing new LOIs before the last company reports monthly on your systems.
• Coverage headroom shrinks with each deal.
• Share count is growing faster than earnings per share.
• Managers at acquired companies are leaving in the first year.
• Projections only work if the exit multiple is higher than the entry multiple.

Where these numbers come from: stock-as-currency findings from the CLS Blue Sky Blog (July 14, 2026); MBH Corporation from TheBusinessDesk; Castellum share counts from jwatte.com; GF Data medians via Carry and Conquer; HVAC deal counts from PKF O'Connor Davies; SBA rules via Cantrell Law; SBA rates from NerdWallet; earnout data (SRS Acquiom) via Livmo; deal costs from Big Deal Small Business.

Related questions

Does one failed acquisition sink a holding company?

Not if it is contained. Keep each company in its own entity, avoid cross-guarantees where you can, and size each deal so one loss is survivable. Close a failing company early rather than funding it indefinitely.

Do private equity roll-ups fail too?

Yes, and usually for the same reasons, especially debt. Private equity firms have more capital and staff, but leverage magnifies their mistakes as well. Size does not protect a roll-up from overpaying.

Are public roll-ups riskier than private ones?

They carry extra risks: dilution, the cost of being public and a share price that can fall below what you need to keep issuing stock. They also have advantages, such as a currency sellers can sell. See public vs private roll-up math.

What is the most common cause of failure?

There is no reliable dataset that ranks causes for small roll-ups. Overpaying combined with debt is arguably the most dangerous mix, because it leaves no room for the integration problems that almost always come.

What comes next

Most overpaying starts with a misunderstanding of what small companies and platforms really trade for. Next, read what's the multiple difference between an add-on and a platform?

Related articles

• What is multiple arbitrage and how do roll-ups create value?
• How do you run a roll-up as a small business owner?
• What's the multiple difference between an add-on and a platform?
• How do you avoid dilution in a public roll-up?
• How do you build a holding company for acquisitions?

Meraki Dealmakers is a service of Meraki Partners, LLC, an advisory firm. It is not a broker-dealer, investment adviser, business broker, law firm or accounting firm. This article is general information, not legal, tax or investment advice.