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Mergers and acquisitions: strategic and regulatory issues

ICAN Professional, Strategic Financial Management. Syllabus area D, mergers and acquisitions

12 min read · Updated 8 November 2026

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In this part

A company can grow by building, by partnering or by buying. Buying is the fastest route and the most dangerous. The price may be too high, the promised savings may not appear and two cultures may clash. Many acquisitions fail. A finance manager must know why companies buy, how to choose a target, what the law requires and how a target defends itself.

This topic covers the difference between a merger and a takeover, acquisitions against internal growth and joint ventures, criteria for choosing a target, synergy, why acquisitions fail, the Nigerian regulatory framework, defences against a hostile bid, what makes shareholders accept, due diligence and reverse takeovers. The previous topic covered cash flow valuation. The next covers valuation for mergers and acquisitions. The May 2014 and November 2014 Pathfinder papers tested these ideas.

In 30 seconds

A merger joins two companies of similar size; in a takeover a larger company acquires control of a smaller target. The objective is to increase shareholders’ wealth. Advantages over internal growth: speed, immediate products, markets and customers, entry past barriers, denying rivals, synergy. Disadvantages: high price, loss of proportional ownership, integration and culture clash. Target criteria: strategic fit, cost and size, opportunity, synergy.

Synergy is revenue, cost or financial. Failures come from over-paying, missing synergies and poor integration. In Nigeria a merger scheme needs special resolutions, SEC approval, a three-quarters value majority at court-ordered meetings, court sanction and filing with the CAC. A hostile target can promise higher profits, return cash, find a white knight or use a poison pill. Due diligence checks the target’s finances and legal position.

In a reverse takeover the target’s owners end up in control.

Key terms in plain English

TermWhat it means
MergerAn amalgamation of two companies of about equal size
TakeoverA larger company acquires a majority of a smaller one
SynergyThe combined value exceeding the sum of the parts (“2 + 2 = 5”)
Hostile bidA bid the target’s board rejects and does not recommend
White knightA friendly rival bidder, at a higher price or better terms
Poison pillA device that makes a takeover costly, such as large bonuses on a sale
Due diligenceAn investigation of the target before the deal is signed
Reverse takeoverAn acquisition after which the acquired company’s owners control the combined entity

Syllabus check

This topic is in syllabus area D (mergers and acquisitions, organic growth and reconstruction). It covers:

  • the arguments for and against acquisitions and mergers, and criteria for choosing a target;
  • the reasons for the high failure rate and the use of a reverse takeover;
  • defensive strategies in hostile bids and due diligence.

CAMA 2020 and mergers

The Companies and Allied Matters Act 2020 (CAMA 2020) is the company law of Nigeria.

SectionWhat it saysLink to this topic
ss. 710 and 711An “arrangement” is any change in the rights or liabilities of members, debenture holders or creditors. A merger scheme needs separate Court-ordered meetings, approval by members representing three-quarters in value of those present and voting, Court sanction, and filing of the order at the Corporate Affairs Commission (CAC) within 7 daysThe statutory route for a merger or reconstruction of companies
s. 715A scheme can be structured so that the Court refers it to the Securities and Exchange Commission (SEC) to test its fairnessReview of the terms offered to shareholders
s. 305 and s. 308Directors must act in good faith in the best interests of the company, with the care, diligence and skill of a reasonably prudent directorDirectors recommending or resisting a bid
s. 306A director’s personal interest must not conflict with the duties of the officeDirectors who stand to gain from a deal

Acquisition or internal growth

The objective of a takeover should match the company’s overall objective, to raise shareholders’ wealth; a merger should raise the wealth of both sets of shareholders. Alternatives to acquisition are internal development and a joint venture.

Advantages of acquisition:

  • growth is much faster;
  • the buyer gets new products, markets and customers at once;
  • it allows entry to markets with high entry barriers;
  • it stops a competitor buying the target;
  • it may bring cost savings and higher profit (synergy).

Disadvantages:

  • it may be expensive, because the price must tempt the target’s shareholders, so the return may be low;
  • proportional ownership falls: a 10% holder in one of two equal companies owns about 5% after a merger;
  • different structures, management styles and pay systems are hard to combine, staff may feel threatened and leave, and disruption often lasts about a year;
  • a clash of cultures, as when a traditional lending bank merges with an investment bank.

Choosing a target

  • Strategic aims: does it widen the product range or enter new markets? Some firms buy many small companies in a fragmented market to become the leader.
  • Cost and relative size: targets are usually affordable; a small buyer taking over a much larger one (a reverse takeover) is rare.
  • Opportunity and availability: a chance to buy may arise.
  • Potential synergy: private equity funds often look for undervalued firms they can run better.

Synergy

  • Revenue synergies: higher combined sales, for example from a stronger brand or the ability to bid for large contracts. Unusual. If A (sales ₦500m) buys B (₦200m), combined sales of ₦750m would be a ₦50m synergy.
  • Cost synergies: savings from combining administration, warehouses and so on, often with redundancies. Planned savings are often hard to achieve because integration is slow and complex.
  • Financial synergies: a larger group may reach the bond market and borrow more cheaply as a lower credit risk.

Why acquisitions fail

  • the price paid is too high;
  • the expected synergies do not occur;
  • integration problems: culture, staff loss, lost knowledge, weak management control;
  • senior managers give the acquired company too little time and attention;
  • competitors respond with new strategies, which can lower profit for all.

The regulatory framework

Three bodies of law apply to a merger or takeover in Nigeria.

  • Company law (CAMA 2020). A merger of companies is carried out by a scheme under s. 711. The Federal High Court may order separate meetings of the members of each company. Members representing at least three-quarters in value of those present and voting, in person or by proxy, at each meeting must agree. The Court then sanctions the scheme, which binds the companies once sanctioned, and the order is filed with the Corporate Affairs Commission (CAC) within 7 days. Section 710 defines an “arrangement”, and under s. 715 the Court may refer a scheme to the SEC to test its fairness.
  • Securities law. Under the Investments and Securities Act 2025 and the SEC’s rules on mergers, takeovers and acquisitions, deals involving public companies need SEC approval at several stages.
  • Competition law. The Federal Competition and Consumer Protection Commission (FCCPC) reviews mergers above the prescribed thresholds under the Federal Competition and Consumer Protection Act 2018. Bank mergers also need the Central Bank of Nigeria and telecoms mergers the Nigerian Communications Commission.

Hostile bids and defences

In a friendly bid the board recommends the offer and gives the bidder access to records for due diligence. In a hostile bid the board rejects it, so the bidder works without management information, which is risky.

The main defence is to persuade shareholders to reject the offer, truthfully and without misleading them: forecast higher profits (so the price is too low), promise to return cash by a bigger dividend or buy-back, or explain the board’s strategy.

Other defences:

  • a white knight
  • a poison pill, which is open to legal challenge in most places
  • changing voting rules to require a larger majority (acceptable before a bid, but open to challenge if done after)

Shareholders’ willingness to accept depends on the offer price, the consideration (cash, debt or shares), job security where managers and employees hold shares, and alternative offers.

Due diligence

A seller knows more than a buyer, like a used-car seller who knows about a gearbox fault. Due diligence reduces that risk by an investigation before signing. It aims to confirm the accuracy of the information and assumptions behind the bid, give an independent review, identify and quantify commercial and financial risk and give assurance to providers of finance.

Financial due diligence reviews financial statements, management accounts and projections, and especially their assumptions. Legal due diligence covers hidden warranties, security over assets, legal disputes and break clauses in supply contracts that could lose customers.

Reverse takeovers

A reverse takeover occurs when an entity acquires another and the acquired entity’s shareholders end up controlling the combined entity. ICAN’s example: X Plc has 10,000 shares and Y Ltd 10,000. X buys all of Y by issuing 30,000 new shares to Y’s owners, who then hold 30,000 of 40,000 shares, 75%. X is the legal acquirer, often a shell, but Y has effectively taken it over.

A private company can use this route to become listed without an IPO. Benefits: more liquid shares, greater access to capital markets, share option schemes and shares as currency for further deals.

The rules in more depth

Why most of the value goes to the target

A bidder must pay above the market price. If it also pays too much for synergy, little is left for its own shareholders.

Why integration decides success

Synergies come only when operations, systems and people are actually combined, and that takes time.

Why a regulator reviews competition

A merger that cuts competition can harm customers, so it needs approval first.

Why due diligence precedes signing

Errors found afterwards cannot be priced into the deal.

Effect on analysis

Match the argument to the case: motive, target fit, price, risks, approvals and defence.

Worked examples

Example 1: ownership dilution. A holds 10% of Company P. P merges with Q, a company of equal value, by a share exchange.

  1. The merged company has twice the value and twice the shares.
  2. The holder’s shares are now half of what they were as a share of the total.
  3. The holding falls to 5%.

Example 2: share exchange. AB has 5m shares at ₦64. It will acquire XY (2m shares at ₦35) by an offer of shares at current market values.

  1. Value of XY.
    2,000,000 × 35 = ₦70m.
  2. Shares to issue = 70,000,000 ÷ 64.
  3. Shares to issue = 1,093,750.

Example 3: over-paying. A target is worth ₦100m alone and the buyer expects synergy worth ₦15m. The buyer pays ₦120m.

  1. Value gained.
    100 + 15 = ₦115m.
  2. Price paid = ₦120m.
  3. Net effect = −₦5m: value is destroyed.

Example 4: a reverse takeover. Shell Plc has 20,000 shares. It buys Private Ltd by issuing 60,000 shares to Private’s owners.

  1. Total shares = 80,000.
  2. Private’s owners hold 60,000.
  3. Their share = 75%, so they control the listed group.

How to score full marks

  • Tie the motive to shareholder wealth.
  • Weigh advantages against internal growth and joint ventures.
  • Name the type of synergy and whether it is realistic.
  • List the approvals required.
  • Match the defence to the bid type.
  • Cover both financial and legal due diligence.

Common mistakes in the exam

  • Assuming synergy is certain.
  • Forgetting the effect on ownership.
  • Leaving out SEC approval and court sanction.
  • Confusing a white knight with a poison pill.
  • Treating due diligence as an audit only of accounts.
  • Calling any share-financed deal a reverse takeover.

Quick revision

  • Merger: equals; takeover: larger buys smaller; aim is shareholder wealth.
  • Acquisition: fast, but costly, dilutive and hard to integrate.
  • Synergy: revenue, cost, financial.
  • Failure: price, synergy, integration, attention, competitors.
  • Scheme: special resolutions, SEC, 75% in value, court, CAC.
  • Defences: persuade, white knight, poison pill, voting rules.
  • CAMA 2020: ss. 305, 306, 308, 710, 711, 715.

Practice questions

These are original questions written in the style of the Institute of Chartered Accountants of Nigeria (ICAN) exam. Try each one before you open the answer. Full model answers follow the written questions.

Recall check: multiple choice

Recent ICAN papers are written, although older papers such as May 2014 included multiple-choice questions. These questions are for quick recall. The written questions that follow are closer to the exam.

Question 1. In a long-run successful acquisition, the acquirer’s share price:

  1. Rises above what it would have been
  2. Falls
  3. Is unchanged
  4. Is irrelevant
Show the answer

A. Value is created for shareholders.

Question 2. Which merger motive makes the most economic sense?

  1. Economies of scale
  2. Diversification only
  3. Bigger empire
  4. Less competition
Show the answer

A. Real efficiency gains.

Question 3. A merger of two equal companies typically leaves a 10% holder with about:

  1. 5%
  2. 10%
  3. 20%
  4. 2%
Show the answer

A. Ownership is diluted.

Question 4. A white knight is:

  1. A friendly rival bidder
  2. A poison pill
  3. A regulator
  4. A shell company
Show the answer

A. It bids at a higher price or better terms.

Question 5. Under s. 711 of CAMA 2020, a merger scheme needs approval by members representing:

  1. Three-quarters in value
  2. 50% in number
  3. 10%
  4. All shareholders
Show the answer

A. At each court-ordered meeting.

Question 6. Financial due diligence reviews:

  1. Financial statements and projections
  2. Only legal disputes
  3. Employee pay
  4. Branding
Show the answer

A. Particularly the assumptions.

Question 7. In a reverse takeover:

  1. The acquired company’s owners end up in control
  2. The bidder’s owners keep control
  3. No shares are issued
  4. The target is liquidated
Show the answer

A. Although the legal acquirer buys.

Question 8. Cost synergies often include:

  1. Redundancies and combined facilities
  2. Higher prices
  3. New brands
  4. Cheaper shares
Show the answer

A. But are hard to achieve.

Question 9. A hostile bid is one that:

  1. The target board rejects
  2. The target board recommends
  3. Has no price
  4. Is in cash only
Show the answer

A. The bidder has no inside information.

Question 10. Which section of CAMA 2020 sets the director’s duty of care and skill?

  1. Section 308
  2. Section 400
  3. Section 405
  4. Section 409
Show the answer

A. Directors should test the assumptions behind a decision.

Written questions

Question 11 (10 marks). (a) Distinguish a merger from a takeover. (2 marks) (b) State four advantages and two disadvantages of acquisition compared with internal growth. (8 marks)

Question 12 (20 marks). Delta Plc plans to acquire Eko Plc. (a) Explain the three kinds of synergy it might seek and why they are often not achieved. (6 marks) (b) Give four reasons why acquisitions fail. (4 marks) (c) Explain the conditions for an effective merger scheme under CAMA 2020 and the roles of the SEC and the FCCPC. (5 marks) (d) Explain what financial and legal due diligence cover. (5 marks)

Question 13 (10 marks). (a) AB Ltd (5m shares at ₦64) will acquire XY Ltd (2m shares at ₦35) by share exchange at market values. Calculate the shares to issue. (3 marks) (b) Explain four defences against a hostile bid. (4 marks) (c) A shell with 20,000 shares buys a private company by issuing 60,000 shares to its owners. State the ownership result and explain the term. (3 marks)

Model answers

Show the model answer to Question 11

(a) Terms (2 marks). A merger joins two companies of about equal size. (1) In a takeover a larger company acquires a majority of a smaller target. (1)

(b) Pros and cons (8 marks). Advantages: faster growth; immediate products, markets and customers; entry past high barriers; stops a competitor; possible synergy. Any four. (4) Disadvantages: high price, so a low return; loss of proportional ownership; integration and culture problems. Any two. (4)

Show the model answer to Question 12

(a) Synergy (6 marks). Revenue synergy: higher combined sales, for example from a stronger brand or larger contracts. (1.5) Cost synergy: savings from combining administration and facilities. (1.5) Financial synergy: cheaper finance through bond market access and lower credit risk. (1.5) They are often missed because integration is long and complex, and staff and customers may be lost. (1.5)

(b) Failure (4 marks). Over-paying; synergies not achieved; integration and culture problems; too little management attention; competitor reaction. Any four. (1 each)

(c) Scheme (5 marks). Special resolutions must pass at the court-ordered meetings and a majority representing three-quarters in value of each company’s shareholders must approve. (2) The Court must sanction the scheme and the order is filed with the CAC within 7 days. (2) Public company deals also need SEC approval, and the FCCPC reviews competition effects. (1)

(d) Due diligence (5 marks). Financial: financial statements, management accounts and projections and their assumptions. (2.5) Legal: hidden warranties, security over assets, legal disputes and break clauses in supply contracts. (2.5)

Show the model answer to Question 13

(a) Shares (3 marks).

  1. Value of XY.
    2m × 35 = ₦70m. (1.5)
  2. Shares = 70m ÷ 64 = 1,093,750. (1.5)

(b) Defences (4 marks). Forecast higher profits to show the price is too low; promise to return cash by a dividend or buy-back; find a white knight; use a poison pill or change voting rules (both open to legal challenge). (1 each)

(c) Reverse takeover (3 marks). Total shares = 80,000, of which the private company’s owners hold 60,000, or 75%. (1.5) It is a reverse takeover because the acquired company’s owners control the combined entity. (1.5)

Pathfinder on Why companies buy, synergy, failure, regulation, defences and due diligence

These are the ICAN Pathfinder questions that test this topic. ICAN owns the questions and the suggested solutions, so we point you to them and do not copy them. Open your Pathfinder, attempt each question under exam conditions, then check your answer against the notes above.

May 2014 Pathfinder, multiple-choice 9 and 10 and short-answer 13

Multiple-choice 9 asked what marks a successful acquisition in the long run (ICAN’s key: an increase in the market price of the acquirer’s shares over what it would have been). Question 10 asked which merger motive makes the most economic sense (economies of scale). Short-answer 13 gave AB Limited (5 million shares at ₦64) acquiring XY Limited (2 million at ₦35) by shares at market values; the answer is 1,093,750 shares. Read the sections on acquisition or internal growth, and the share exchange example.

Revise first: Acquisition or internal growth

Defences and due diligence

Case questions ask how a target may resist a bid and what a bidder should check. See the sections on hostile bids and due diligence.

Revise first: Hostile bids and defences

Source: ICAN Pathfinder, Strategic Financial Management. Diets covered: May 2014 multiple-choice 9 and 10 and short-answer 13.

Spotted a mistake? Tell us and we will check it.

Where this fits

See every past question on Strategic Financial Management and the topic each one tests in the Pathfinder question finder.

This course builds on Financial Management and Performance Management. After it, move on to Case Study.

All Strategic Financial Management topics

You are reading topic 53 of 71.

  1. Strategic financial management and corporate objectives01
  2. The treasury function02
  3. Stakeholders, corporate social responsibility and ethics in financial management03
  4. Money laundering and the duties of directors04
  5. The economic environment, free trade and international institutions05
  6. Government influence on business and the financial management framework06
  7. Financial markets, money markets and money market instruments07
  8. Dividend policy, dividend capacity and transfer pricing08
  9. Emerging issues: the financial crisis, dark pools and new asset classes09
  10. Technology tools for financial management10
  11. Strategic analysis: PESTEL, SWOT and the five forces11
  12. The Ansoff matrix and methods of strategic development12
  13. Assessment and selection of business strategies13
  14. Business plans and communicating strategy14
  15. Strategic change and managing change15
  16. Risk, risk management and categories of risk16
  17. Identification, assessment and measurement of risk17
  18. Monitoring and controlling risk, and enterprise risk management18
  19. Corporate governance: meaning, concepts and stakeholders19
  20. Agency theory and other governance theories20
  21. Governance codes: rules-based and principles-based approaches21
  22. The board: roles, composition and committees22
  23. Directors and the law, director development and audit23
  24. Discounted cash flow (i): NPV, annuities and perpetuities24
  25. Discounted cash flow (ii): IRR, MIRR and relevant costs25
  26. Discounted cash flow (iii): taxation and capital allowances26
  27. Discounted cash flow (iv): inflation27
  28. Risk and uncertainty (i): sensitivity analysis and expected values28
  29. Risk and uncertainty (ii): decision trees, risk-adjusted rates and other methods29
  30. The lease versus buy decision30
  31. Asset replacement decisions31
  32. Capital rationing32
  33. Cost of capital and the weighted average cost of capital33
  34. Risk, return and portfolio theory34
  35. The capital asset pricing model and the cost of capital for appraisal35
  36. Sources of finance: equity and rights issues36
  37. Sources of finance: debt, convertibles and preference shares37
  38. Finance for SMEs and venture capital38
  39. Islamic finance39
  40. Financing projects and capital structure theories40
  41. Gearing, WACC and asset and equity betas41
  42. Adjusted present value42
  43. International Valuation Standards43
  44. Business valuation: asset-based and income-based methods44
  45. Dividend valuation models45
  46. The valuation of debt and preference shares46
  47. The efficient market hypothesis47
  48. Value-based management: EVA and MVA48
  49. Cash flow valuation and free cash flow49
  50. International investment decisions50
  51. Option pricing theory and the Black-Scholes model51
  52. Real options and applications of Black-Scholes52
  53. Mergers and acquisitions: strategic and regulatory issues53 here
  54. Valuation for mergers and acquisitions54
  55. Financing acquisitions and mergers55
  56. Capital reconstructions56
  57. Business reorganisation and management buyouts (MBO)57
  58. Forecast financial statements58
  59. Evaluating financial performance, position and proposed strategies59
  60. Corporate failure and how to predict it60
  61. Foreign exchange rates and exposure61
  62. Exchange rate relationships: PPP and interest rate parity62
  63. Forward contracts, money market hedges and netting63
  64. Duration and convexity64
  65. Yield curves and credit risk65
  66. Forward rate agreements and interest rate swaps66
  67. Forward rates from yield curves and currency swaps67
  68. Futures and hedging with futures68
  69. Currency futures and short-term interest rate futures69
  70. Hedging with options, caps, floors and collars70
  71. Delta hedging and the Greeks71
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