Written by Chris Walton, JDA fairness opinion is legally required in a narrow set of transactions: going-private transactions under SEC Rule 13E-3 and adviser-led secondary transactions under the SEC’s private fund rules.
In all other contexts, a fairness opinion is advisable but not mandated — and the decision to obtain one depends on whether the transaction involves a conflict of interest, requires shareholder approval, or presents litigation risk the board wants to mitigate.
This guide distinguishes the situations where a fairness opinion is required, where it is strongly advisable, and where a different deliverable (a valuation memo, a solvency opinion, or a restricted appraisal) may be more appropriate.
The question boards and counsel ask most often is not whether a fairness opinion is a good idea — they generally know the answer is yes when conflicts are present. The question is whether one is required, and if so, what specifically the opinion must address. The answer depends on the transaction structure, the regulatory framework, and the standard of review a court would apply if the transaction is challenged.
A fairness opinion is a written opinion from an independent financial advisor stating that, based on the advisor’s analysis, the financial terms of a proposed transaction are fair from a financial point of view to a specified party — typically the shareholders of the company being acquired, or the limited partners in a fund restructuring.
The opinion is not a recommendation to approve the transaction. It is not a guarantee that the price is the highest available. It is a professional conclusion that the price falls within a range of financial fairness based on accepted valuation methodologies.
Understanding what a fairness opinion does — and doesn’t do — is essential to understanding when one is required.
There are two categories of transactions in which a fairness opinion is mandated by regulation:
Going-private transactions under SEC Rule 13E-3. When a public company goes private — through a management buyout, a controlling stockholder squeeze-out, a reverse stock split, or any other transaction that terminates the company’s SEC reporting obligations — Rule 13E-3 requires the company to file a Schedule 13E-3 that includes a detailed discussion of the fairness of the transaction. The filing must disclose whether the company obtained a fairness opinion, who provided it, and the material terms of the engagement.
While the rule does not technically require a fairness opinion, it requires the company to state whether the transaction is fair and to describe the basis for that determination. As a practical matter, no company files a Schedule 13E-3 without one. The absence of an independent fairness opinion in a going-private transaction creates litigation risk that no board should accept.
Adviser-led secondary transactions under the SEC’s private fund rules. The SEC’s 2023 private fund adviser rules (partially vacated by the Fifth Circuit but with certain provisions still applicable or influential) require advisers to obtain a fairness opinion or an independent valuation opinion in connection with adviser-led secondary transactions in which fund investors are offered the option to sell their interests or exchange them for interests in a continuation vehicle.
The rationale is straightforward: the adviser stands on both sides of the transaction (as the GP of the selling fund and the GP of the continuation fund), creating a conflict that an independent opinion addresses.
Outside the two mandatory categories, a fairness opinion is not legally required but is strongly advisable whenever the transaction involves a conflict of interest or a heightened standard of judicial review:
Change-of-control transactions. Any merger, acquisition, or sale of the company that changes who controls the enterprise. Under Delaware’s Revlon doctrine, when a board decides to sell the company, it must act as a reasonably diligent auctioneer seeking the best price reasonably available.
A fairness opinion from an independent advisor is the primary evidence that the board fulfilled that duty. Without one, the board is defending the price with only the negotiation record and its own testimony.
Conflicted-controller transactions. When a controlling stockholder is on both sides of the transaction — buying out the minority, approving a related-party deal, or structuring a going-private — the entire fairness standard applies under Delaware law. The controller must prove that the transaction was entirely fair in both process and price.
A fairness opinion is the most direct evidence of fair price. In Weinberger v. UOP (Del. 1983), the foundational entire-fairness case, the Delaware Supreme Court emphasized the importance of independent evaluation of the transaction’s terms. In Jacobs v. Akademos (Del. Ch. 2024), the court found the transaction entirely fair despite procedural imperfections because the price evidence — including an exhaustive market process — demonstrated that the consideration reflected economic reality. The fairness opinion is one component of that price evidence.
Management buyouts. When the company’s management team is acquiring the company, management stands on both sides of the deal — as fiduciaries of the shareholders and as buyers seeking the lowest price.
A fairness opinion from an advisor independent of management is essential to establish that the price is fair to the shareholders whose interests management is supposed to protect.
The absence of independent financial advice was one of the failures identified in Smith v. Van Gorkom (Del. 1985), where the Delaware Supreme Court held the TransUnion board grossly negligent for approving a merger at $55 per share based on a 20-minute presentation from the CEO, with no independent valuation or fairness opinion. The board had been told a fairness opinion wasn’t legally required. Technically, that was correct. It was also the advice that cost the directors personal liability.
Transactions requiring shareholder approval. Major asset sales, recapitalizations, and other transactions requiring a shareholder vote benefit from a fairness opinion because the proxy materials disclosing the opinion give shareholders an independent basis to evaluate the transaction. Under Corwin v. KKR Financial Holdings (Del. 2015), a fully informed, uncoerced stockholder vote can cleanse a transaction and shift the standard of review from enhanced scrutiny to business judgment.
A fairness opinion disclosed in the proxy is one of the elements that makes the stockholder vote “fully informed.”
Transactions where directors face personal liability risk. After Van Gorkom, most Delaware corporations adopted Section 102(b)(7) exculpation provisions that protect directors from monetary liability for duty-of-care violations. But exculpation does not protect against duty-of-loyalty claims or claims involving bad faith.
A fairness opinion documents the board’s process — that it obtained independent financial advice, reviewed the analysis, and made an informed decision. If the transaction is later challenged, the opinion is evidence that the board acted in good faith and on a reasonable basis.
Not every transaction requires a fairness opinion, and obtaining one when the circumstances don’t warrant it is an expense that doesn’t produce corresponding value. Situations where a different deliverable may be more appropriate:
Arm’s-length transactions with no conflicts. If the buyer and seller are unrelated parties negotiating at arm’s length with separate counsel and no overlapping directors or officers, the transaction doesn’t present the conflict-of-interest concern that fairness opinions are designed to address.
The negotiation itself provides the market discipline. A valuation memo or internal analysis may be sufficient to document the board’s diligence.
Small transactions where the cost is disproportionate. A fairness opinion engagement typically costs $75,000 to $250,000 or more depending on the complexity. For a transaction valued at $2 million, that cost may be disproportionate.
A restricted appraisal or a valuation letter may provide adequate documentation of the board’s process at a fraction of the cost.
Solvency questions rather than fairness questions. If the board’s concern is whether the company will remain solvent after a leveraged transaction, dividend recapitalization, or spinoff — not whether the price is fair — a solvency opinion is the appropriate deliverable.
A solvency opinion addresses whether the company can pay its debts as they come due and has adequate capital after the transaction. A fairness opinion addresses whether the price is fair to the shareholders. The two answer different questions.
Most board members who authorize a fairness opinion report have never read one. Understanding what the opinion contains — and what it doesn’t — is essential for both the board that commissions it and the counsel that relies on it:
The valuation analysis. A fairness opinion is supported by a detailed valuation analysis that typically employs three approaches: a discounted cash flow (DCF) analysis based on management’s financial projections, a comparable public company analysis benchmarking the subject company against publicly traded peers, and a comparable transaction analysis reviewing precedent M&A transactions involving similar companies.
The advisor applies each methodology independently and evaluates whether the transaction price falls within the range of values the three approaches produce. If the price falls within the range, the opinion states that the price is fair from a financial point of view.
The “fair from a financial point of view” standard. This language is precise and deliberately narrow. The opinion addresses financial fairness only. It does not address whether the transaction is the best available alternative, whether the board should approve it, or whether shareholders should vote for it. It does not evaluate the strategic rationale for the transaction. It does not assess the tax consequences. It is a financial conclusion, not a recommendation.
The limitations and assumptions. Every fairness opinion includes a limitations section disclosing the assumptions the advisor relied on: that the financial projections provided by management were prepared in good faith, that the information provided to the advisor was accurate and complete, that the advisor did not independently verify the financial data, and that the opinion is based on market conditions as of its date.
These limitations matter: the opinion is only as reliable as the information on which it is based. If management’s projections are unreliable or the financial data is incomplete, the opinion may not provide the protection the board expects.
What the opinion does not include. A fairness opinion is not a valuation report. It does not assign a specific value to the company. It concludes that the price is fair — within a range of values. It does not guarantee that a higher price could not have been obtained. It does not address the interests of any party other than the specified party (usually the selling company’s shareholders). And it is not a legal opinion — it does not address whether the transaction complies with applicable law or whether the board has fulfilled its fiduciary duties.
The opinion provides financial evidence that supports the board’s process; it does not replace the board’s judgment.
The case law on fairness opinions illustrates both what happens when the board obtains one and what happens when it doesn’t:
Smith v. Van Gorkom (Del. 1985): The board that didn’t get one. The TransUnion board approved a $55-per-share cash merger after a 20-minute presentation from the CEO, with no independent valuation, no fairness opinion, and no market check. The CEO had selected the $55 price himself based on a leveraged buyout analysis he commissioned without board knowledge.
The Delaware Supreme Court held the board grossly negligent for failing to inform itself of the company’s value before approving the merger. The holding changed corporate law: after Van Gorkom, virtually every board considering a sale transaction obtains a fairness opinion as a baseline procedural protection.
Weinberger v. UOP (Del. 1983): The foundation of entire fairness. Signal Companies owned 50.5% of UOP and proposed a cash-out merger at $21 per share. A Signal executive had prepared an analysis showing UOP was worth up to $24 per share, but that analysis was not disclosed to UOP’s minority stockholders or its independent directors.
The Delaware Supreme Court established the entire fairness standard: a conflicted-controller transaction must be entirely fair in both process (fair dealing) and price (fair price). The court found the process unfair because the independent directors lacked the information necessary to evaluate the deal. Weinberger is the reason fairness opinions exist in conflicted transactions: the opinion provides the independent financial analysis the court found missing.
In re Rural Metro Corp. Stockholders Litigation (Del. Ch. 2014): The conflicted advisor. RBC Capital Markets served as financial advisor to Rural Metro’s board in a sale to Warburg Pincus. The Chancery Court found that RBC had a conflict of interest: it was simultaneously pursuing buy-side financing work on the transaction, creating an incentive to push the deal to completion at any price rather than to maximize value for the selling shareholders.
The court held RBC liable for aiding and abetting the board’s breach of fiduciary duty. The lesson for boards: the fairness opinion is only as independent as the advisor who delivers it. Retaining an advisor with no interest in the transaction’s completion — no staple financing, no buy-side mandate, no success fee contingent on closing — is what makes the opinion genuinely independent.
Corwin v. KKR Financial Holdings (Del. 2015): The fully informed vote. The Delaware Supreme Court held that a merger approved by a fully informed, uncoerced stockholder vote is reviewed under the business judgment rule, even if the transaction would otherwise trigger enhanced scrutiny. The court emphasized that the vote must be “fully informed” — meaning the proxy materials must disclose the material terms of the transaction, including any fairness opinion and the analysis supporting it.
Corwin gives boards a powerful tool: if the fairness opinion is obtained, disclosed in the proxy, and the shareholders vote with full information, the transaction receives the most deferential standard of review. The fairness opinion is one of the building blocks of a Corwin defense.
The fastest-growing segment of the fairness opinion market is venture-backed and private company transactions where board conflicts are pervasive but regulatory mandates are absent. The situations where a fairness opinion is most valuable in the private company context:
Tender offers and secondary sales. When a venture-backed company offers existing shareholders the opportunity to sell shares in a tender offer or secondary transaction, the board sets the price.
If board members or their affiliated funds are participating in the transaction — either as buyers or as sellers — the conflict is direct. A fairness opinion documents that the price was independently evaluated and falls within a range of financial fairness.
Down-round financings with existing investor participation. A financing at a lower valuation than the prior round dilutes existing shareholders. If the investors leading the down round are existing preferred stockholders with board seats, they face a conflict: their incentive is to set the lowest possible price to maximize their share of the new round.
A fairness opinion — or at minimum, an independent valuation supporting the price — provides evidence that the price reflects the company’s actual value, not the insiders’ preferred outcome.
Recapitalizations and restructurings. When a venture-backed company restructures its capital stack — converting preferred to common, issuing new preferred with different terms, or extending the runway through debt — the board is reallocating economic interests among the existing equity holders.
The holders whose interests are reduced have a claim that the restructuring was unfair. A fairness opinion addressing the financial terms of the restructuring is the board’s primary defense.
GP-led continuation fund transactions. When a fund sponsor transfers portfolio company interests from one fund to a continuation vehicle managed by the same sponsor, the GP stands on both sides. Limited partners are offered the choice to cash out or roll over.
The SEC’s private fund rules require a fairness or independent valuation opinion in these transactions, and even absent the regulatory mandate, the conflict is severe enough that no GP should proceed without one.
The Rural Metro case demonstrates that the advisor’s independence is the threshold requirement. Four criteria should guide the selection:
No interest in the transaction’s completion. The advisor should not have a success fee contingent on closing, should not be providing buy-side or sell-side financing, and should not have a preexisting relationship with the counterparty that creates an incentive to facilitate the deal. An advisor whose compensation depends on the deal closing is not independent in the way a court will credit.
Relevant valuation expertise. The advisor should have experience valuing companies in the subject company’s industry, at the subject company’s stage, and using the methodologies appropriate to the transaction. A bulge-bracket bank may provide prestige, but a boutique firm with specific expertise in the relevant industry may produce a more defensible analysis.
Willingness to defend the opinion. A fairness opinion that the advisor won’t stand behind in litigation is not a fairness opinion — it’s a piece of paper. The advisor should be willing to testify as a witness and defend the analysis in court if the transaction is challenged.
Transparent methodology. The advisor should explain, in terms the board can understand, how the three valuation approaches (DCF, comparable companies, comparable transactions) were applied, what assumptions were used, and why the transaction price falls within the range.
A board that receives an opinion but doesn’t understand the analysis hasn’t fulfilled its duty of care — Van Gorkom established that the board must inform itself, and rubber-stamping an opinion it doesn’t understand is not informed decision-making.
If you’re evaluating whether a fairness opinion is required for a specific transaction, or need one delivered on a timeline the deal requires, happy to discuss the scope. The engagement structure and the advisor’s independence are the two decisions that determine whether the opinion provides the protection the board needs.
Fairness opinions are legally required in two specific contexts: going-private transactions under SEC Rule 13E-3 (where the filing must address the fairness of the transaction and, as a practical matter, an independent opinion is essential) and adviser-led secondary transactions under the SEC’s private fund rules (where the adviser must obtain a fairness or independent valuation opinion when investors choose between selling their interests or exchanging them for interests in a continuation vehicle).
In all other contexts, a fairness opinion is advisable but not legally mandated. The board’s decision to obtain one should be based on whether the transaction involves a conflict of interest, triggers a heightened standard of judicial review, or presents litigation risk that an independent opinion would mitigate.
A valuation report assigns a specific value (or range of values) to a company or asset, typically expressed as a single number or a range. A fairness opinion reaches a different conclusion: that the financial terms of a specific transaction are fair from a financial point of view to a specified party.
The fairness opinion is supported by a valuation analysis, but the deliverable is the opinion itself — a professional conclusion about the transaction’s financial fairness, not a standalone value determination.
A board that needs to know what the company is worth commissions a valuation. A board that needs to know whether the deal price is fair commissions a fairness opinion.
The phrase means that, based on the advisor’s analysis, the price or exchange ratio in the transaction falls within a range the advisor considers financially reasonable. It does not mean the price is the highest possible price.
It does not mean the transaction is the best available alternative. It does not address nonfinancial considerations (strategic fit, regulatory risk, timing). And it does not constitute a recommendation to approve the transaction or vote in its favor.
The language is deliberately narrow: the opinion addresses financial fairness only, and the board retains full discretion to approve or reject the transaction based on all relevant considerations.
Fairness opinion fees vary by the complexity of the transaction, the size of the subject company, and the scope of the valuation analysis required.
For middle-market transactions, fees typically range from $75,000 to $250,000. For large or complex transactions involving multiple jurisdictions, regulatory considerations, or contested processes, fees can exceed $500,000.
Bulge-bracket investment banks generally charge at the higher end; boutique valuation firms generally charge less while providing comparable analytical depth. The fee structure should be fixed or primarily fixed — a fee that is largely contingent on the deal closing creates the independence problem Rural Metro identified.
Early in the process — before the deal terms are finalized. The advisor needs time to perform due diligence, build the valuation models, and analyze the transaction’s financial terms.
Engaging the advisor after the terms are agreed upon but before the board vote risks the appearance (and the reality) that the opinion is a rubber stamp.
The strongest process is one in which the advisor is engaged at the outset, participates in the board’s deliberations, and provides preliminary feedback that the board can use in negotiating the final terms.
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