Key takeaways
- Buyers weight the trailing twelve months more heavily than any other period.
- A single weak quarter before a process can cost more than years of strong performance.
- Normalize one-time events in the TTM so buyers don't penalize them as structural.
- Revenue timing decisions in the year before a sale carry real valuation consequences.
- Build a TTM narrative before the banker asks for one.
Current-period underperformance during the 60-90 day diligence period is the most frequently cited buyer justification for retrading after LOI signing, affecting estimated 5-15% of enterprise value in affected transactions.
The trailing-twelve-month EBITDA continues to roll forward during diligence, a single weak quarter entering the TTM creates a purchase price exposure that is proportional to the agreed multiple, with no mechanism for the seller to recover the impact after exclusivity is granted.
The most effective performance protection during a sale process: explicitly separate the team between process support and business execution, founders who attempt to manage both functions simultaneously are the primary source of the management bandwidth constraint that produces current-period misses.
When a buyer submits a letter of intent, the purchase price is typically expressed as a multiple of trailing twelve months adjusted EBITDA. Founders often treat that number as locked, the negotiation is over, the price is set. What most do not fully appreciate is that the trailing twelve months continues to roll forward during the 60–90 days between LOI signing and close. If Q3 underperforms, Q3 enters the TTM. If Q4 is weak, Q4 enters the TTM. A deal signed at 6x $5M EBITDA can close significantly below that number if current-period performance deteriorates between LOI and close.
60–90 days
Typical diligence period during which current-period performance is monitored by buyers
5–15%
Estimated range of LOI-to-close value erosion from current-period performance deterioration
#1 cited reason
Current-period underperformance is the most frequently cited buyer justification for retrading after LOI signing
How buyers use current-period performance during diligence
Buyers do not stop watching the business after signing the LOI. Most purchase agreements include representations that require the business to be operated in the ordinary course through close, and most buyers require current-period financial updates as part of the diligence process, typically monthly. A buyer who signed the LOI in January will see January, February, and March results before closing. They are comparing those results to the same period in the prior year and to the business's own historical trend.
When a buyer sees a current-period miss during diligence, they face a choice: absorb it, reprice, or retrade. Most institutional buyers are trained to use underperformance as negotiating leverage. The seller, who has now been exclusive for 45 days, incurred significant advisory costs, and has no active alternative buyers, is in a materially weaker position than before signing.
The mechanism by which current performance affects the final price varies by transaction structure. In simple cash deals, buyers typically request a price reduction proportional to the EBITDA shortfall. In earnout structures, the current period miss becomes evidence that the forward-looking case was aggressive. In working capital adjustments, a cash-intensive period can create a closing adjustment that reduces proceeds. The common thread: current-period performance deterioration almost never benefits the seller and frequently costs them.
What causes performance to slip during a transaction
Management bandwidth is the most common cause. Reducing owner dependency before the process begins is the most reliable protection. A sale process consumes significant leadership capacity, responding to information requests, preparing for management presentations, coordinating with bankers and lawyers, and reviewing draft agreements. For founder-led businesses where the founder is also running day-to-day operations, this capacity is pulled from business execution. Customers do not get the same attention. Proposals take longer. Decisions that need the founder's input get deferred.
A sale process does not pause the business. But it does consume the attention of the people running it. For founders who are both operating the business and managing the sale, this tension is acute, and the resolution almost always disadvantages the business.
The second cause is organizational uncertainty. Even without explicit communication, key employees sense a process is underway, advisors are around, the founder is distracted, certain questions are being asked. Uncertainty produces defensive behavior: decisions get deferred, initiatives slow down, customer relationships receive less proactive attention. The result is a soft quarter that buyers observe and price.
The third cause is deliberate but mistaken: founders who are mentally past the business. After 20 years of building something, a founder whose deal is signed begins to emotionally disengage. This is human and understandable. It is also expensive.
Protecting performance through a transaction
The operational approach that most consistently protects performance through a transaction is clear separation between who runs the business and who manages the process. In a sell-side process, this means explicitly designating which management team members are focused on business operations during the diligence period and which are primarily supporting the process. The founder cannot fully occupy both roles simultaneously.
Protecting Performance Through a Sale Process
Separate the team
Assign specific people to process support (information requests, diligence coordination) and explicitly protect the operating team's capacity for business execution. Do not assume individuals can do both well under sustained pressure.
Establish a weekly operating pulse
Run a brief weekly operating check specifically focused on the current period: revenue pipeline, customer service levels, operational bottlenecks. This is separate from the diligence work. It keeps the business visible to leadership during a period when the process dominates attention.
Communicate proactively with key employees
Key employees uncertain about the future are not fully engaged in the present. A carefully constructed communication, appropriate to what can be disclosed, reduces uncertainty and preserves operating focus.
Flag soft periods early
If a month is going to miss expectations, flag it to the banker and advisors before the buyer sees it in a financial update. A proactively explained variance is categorically different from one the buyer discovers independently.
Frequently asked questions
How does current-period performance affect a business sale price?
The trailing-twelve-month EBITDA continues to roll during the 60–90 day diligence period. Weak current-period results enter the TTM and reduce the earnings base to which the purchase multiple applies. Institutional buyers are specifically trained to flag and reprice on current-period deterioration, it is the most commonly cited justification for retrading after LOI signing.
What is buyer retrading in M&A?
Retrading is when a buyer reduces the purchase price or changes material deal terms after the LOI has been signed. Current-period underperformance is the most common trigger. Retrading is most damaging because it occurs after exclusivity has been granted, the seller has no active alternative buyers and has incurred significant advisory costs.
How should founders protect operating performance during a sale process?
The most effective approach: (1) separate the team, designate who supports the process and who runs the business; (2) maintain a weekly operating pulse on current-period performance, separate from diligence work; (3) communicate proactively with key employees to reduce uncertainty-driven disengagement; (4) flag underperforming months to advisors early rather than letting buyers discover them in financial updates.
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