In almost every major M&A transaction, the target company’s board of directors (and sometimes the acquirer’s board as well) will obtain a “fairness opinion” from an investment bank. A fairness opinion is a formal assessment of whether the financial terms of a proposed transaction are fair to a company’s shareholders. It is one of the most important advisory services that investment banks provide, and understanding how fairness opinions work is valuable for anyone preparing for a career in M&A advisory.
What Is a Fairness Opinion?
A fairness opinion is a letter from an investment bank to a company’s board of directors stating whether, in the bank’s professional judgment, the consideration being offered in a transaction (e.g., the price per share in an acquisition) is fair, from a financial point of view, to the company’s shareholders. The opinion typically concludes with language along the lines of: “Based on our analysis, we believe the consideration to be received by the shareholders is fair, from a financial point of view.”
It is important to understand what a fairness opinion is not. It is not a recommendation to shareholders on how to vote. It is not a guarantee that the price is the best possible price the company could achieve. And it does not address any non-financial considerations, such as strategic rationale, regulatory risk, or the likelihood of the deal closing. The opinion is narrowly focused on whether the financial terms are within a range that the bank considers fair.
Why Do Boards Obtain Fairness Opinions?
Boards of directors have a fiduciary duty to act in the best interests of their shareholders. When a board approves a major transaction (particularly a sale of the company), shareholders may later challenge whether the board fulfilled that duty. A fairness opinion from a reputable investment bank provides the board with important legal protection.
Specifically, a fairness opinion helps establish that the board acted on an informed basis and in good faith when approving the transaction. In legal terms, it supports the board’s compliance with the “duty of care”: the obligation to make decisions with adequate information and deliberation. In the landmark Delaware case Smith v. Van Gorkom, the court found that a board had breached its duty of care in part because it did not obtain a fairness opinion before approving a merger. Since then, it has become standard practice for boards to seek one.
Beyond legal protection, a fairness opinion also gives shareholders confidence that an independent financial advisor has reviewed the transaction and found the terms to be fair. This can be particularly important in transactions involving conflicts of interest: for example, a management buyout where the company’s executives are on the buying side, or a deal between related parties.
How Investment Banks Prepare a Fairness Opinion
Preparing a fairness opinion involves extensive financial analysis. The bank uses the same core valuation methodologies that underpin all M&A advisory work:
Comparable Company Analysis
The bank identifies a set of publicly traded companies that are comparable to the target and analyzes their valuation multiples, such as EV/EBITDA, EV/Revenue, and P/E ratios. By applying these multiples to the target’s financial metrics, the bank derives an implied valuation range. For a detailed walkthrough, see our guide on comparable company analysis.
Precedent Transactions Analysis
The bank examines prior M&A transactions involving similar companies to see what multiples and premiums were paid. This provides a market-based reference point for what buyers have historically been willing to pay for comparable assets. See our precedent transactions guide for more detail.
Discounted Cash Flow (DCF) Analysis
The bank builds a DCF model that projects the target’s future free cash flows and discounts them back to present value using an appropriate discount rate (typically the company’s WACC). The DCF analysis also incorporates a terminal value to capture the company’s value beyond the projection period.
Other Analyses
Depending on the transaction, the bank may also perform additional analyses, such as an LBO analysis (to determine what a financial sponsor could afford to pay), a sum-of-the-parts analysis (for diversified companies), or an analysis of premiums paid in comparable transactions.
The bank compiles these analyses into a valuation range: a “football field” chart showing the implied valuation from each methodology. If the offer price falls within or above this range, the bank can opine that the price is fair. If the offer price falls below the range, the bank would typically not be able to render a fairness opinion or would advise the board that the offer appears inadequate.
The Fairness Opinion Process
The typical process for delivering a fairness opinion involves several key steps:
- Engagement: The board (often through a special committee, especially in conflict situations) retains an investment bank to provide the fairness opinion. The engagement letter specifies the scope of the work and the fee arrangement.
- Information gathering: The bank receives management projections, financial data, and other relevant information about the target company. The bank may also conduct due diligence and have discussions with management.
- Valuation analysis: The bank performs the full suite of valuation analyses described above.
- Presentation to the board: The bank presents its analyses and conclusions to the board of directors, typically in a detailed presentation that walks through each valuation methodology and the resulting ranges.
- Delivery of the opinion: If the bank concludes that the terms are fair, it delivers a formal written fairness opinion letter to the board. This letter is typically included in the proxy statement sent to shareholders.
Who Provides Fairness Opinions?
Fairness opinions are typically provided by investment banks, both large bulge bracket banks and smaller advisory firms. In situations involving conflicts of interest, boards often retain independent advisory firms that are not involved in financing the transaction. This independence strengthens the credibility of the opinion.
Boutique advisory firms and elite boutiques have built strong reputations in the fairness opinion space precisely because of their independence: they do not have lending or underwriting businesses that could create conflicts. Banks like Lazard, Evercore, and others are frequently retained for fairness opinions in high-profile and contested transactions.
Controversies and Criticisms
Fairness opinions are not without controversy. Critics point out several issues:
- Conflicts of interest: When the same bank providing the fairness opinion is also advising on the deal and earning a success fee contingent on closing, there is an inherent incentive to opine that the deal is fair. Boards mitigate this by retaining a separate, independent bank for the fairness opinion.
- “Rubber stamp” perception: Some critics argue that fairness opinions have become a formality: that banks almost always conclude the price is fair because that is what the client wants to hear. While this perception exists, reputable banks take their fairness opinion work seriously because their reputation is on the line.
- Subjectivity in assumptions: Valuation is inherently subjective. Small changes in growth assumptions, discount rates, or the selection of comparable companies can significantly shift the implied valuation range. Critics argue this gives banks wide latitude to reach a predetermined conclusion.
Despite these criticisms, fairness opinions remain a standard and important part of the M&A process. They provide valuable legal protection for boards and help ensure that shareholders receive fair consideration.
Fairness Opinions in Different Transaction Types
Fairness opinions are most commonly associated with mergers and acquisitions, but they can be sought in other contexts as well:
- Going-private transactions: When a public company is taken private (e.g., by a private equity firm), the board will obtain a fairness opinion to protect shareholders.
- Related-party transactions: Deals between affiliated parties (such as a controlling shareholder buying out minority shareholders) almost always require a fairness opinion from an independent advisor.
- Hostile takeovers: A target board defending against a hostile takeover may obtain a fairness opinion to support its position that the offer is inadequate.
- Spin-offs and divestitures: Boards may seek fairness opinions for spin-offs and divestitures to confirm that the terms of the separation are fair.
Interview Questions About Fairness Opinions
If you are preparing for investment banking interviews, you may be asked about fairness opinions. Here are some common questions:
- “What is a fairness opinion?” A formal assessment by an investment bank of whether the financial terms of a transaction are fair to a company’s shareholders.
- “Why do boards get fairness opinions?” To fulfill their fiduciary duty of care, provide legal protection, and give shareholders confidence that the transaction terms have been reviewed by an independent financial advisor.
- “What analyses go into a fairness opinion?” Comparable company analysis, precedent transactions, DCF analysis, and potentially LBO analysis or sum-of-the-parts analysis.
- “What are the potential conflicts of interest?” If the same bank advising on the deal is providing the fairness opinion, it has a financial incentive to opine that the deal is fair. This is why boards often retain a separate independent advisor.
For more on the technical analyses that underpin fairness opinions, review our guides on enterprise value vs. equity value and how the three financial statements link together.
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Related Articles
- Hostile Takeovers and Takeover Defenses Explained
- M&A Advisory in Investment Banking
- Walk Me Through a DCF
- Comparable Company Analysis (Trading Comps)
- Precedent Transactions Analysis
- Spin-Offs and Divestitures in Investment Banking
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