Define control premium and write the formula. Against which share price should it be measured, and why?

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A control premium is the extra amount an acquirer pays above the target’s undisturbed trading price to own 100% of the business and gain the rights of control: replacing management, redirecting capital allocation, and capturing synergies that a passive minority investor cannot access. The formula is Offer Price minus Undisturbed Share Price, divided by Undisturbed Share Price.

You measure it against the undisturbed share price, specifically the price before any rumors or speculation about a deal started circulating, not the price the day before signing. That day-before price may already have run up on leaks or anticipation, so using it would understate the true premium. Historically, control premiums tend to run roughly 20 to 40 percent, though the exact number varies by deal dynamics.

By anchoring to the pre-rumor, undisturbed level, you capture the pure value the buyer is placing on control itself, which is why precedent transaction multiples almost always run higher than trading comp multiples for similar companies.

Enterprise value bridge

Equity value800
+ Total debt380
− Cash & equivalents(150)
+ Minority interest20
+ Preferred stock15
Enterprise value1,065
Illustrative figures

Also asked as

  • Define precedent transactions analysis and explain the one key economic difference between what it measures versus trading comparables.
  • A target's undisturbed share price was $18.00. An acquirer offers $23.40 per share in cash. Compute the control premium.
  • Would you expect precedent transaction multiples to be higher or lower than trading comp multiples for similar companies in the same period? Explain the mechanism.
  • Explain why a strategic acquirer might pay a higher multiple than a financial sponsor for the same target, and how you would adjust a strategic-buyer precedent multiple to make it more comparable to a standalone valuation.
  • A precedent deal was announced at $2,000M EV against target LTM EBITDA of $175M. The acquirer disclosed $35M of run-rate synergies. Compute the headline multiple and the synergy-adjusted multiple.
  • Why does the 'look-back window' matter more for precedent transactions than for trading comps? Give a specific example of market conditions that would make an older deal a poor precedent today.
  • A stock-for-stock deal is announced with a fixed exchange ratio of 0.65 acquirer shares per target share. At announcement, the acquirer trades at $60.00 and the target's undisturbed price was $28.00. Compute the implied offer value and the headline control premium. If the acquirer's stock later falls to $52.00 before closing, compute the implied offer value and premium at that price, and explain what this means for target shareholders in a fixed exchange ratio deal.
  • You're building a precedent transactions analysis for a niche industrial sub-sector and can only find five deals over the last eight years, one from 2018 (peak credit conditions) and one from 2023 (recent, tighter credit conditions) at very different multiples. Walk through how you would weight, present, and caveat this set for a deal team relying on it today.
  • A target with normalized LTM EBITDA of $120M is acquired by a financial sponsor for $960M EV, and by comparison, a different but similar target was acquired the same year by a strategic buyer for $1,320M EV against $110M of normalized LTM EBITDA with $30M of disclosed synergies. Compute both headline multiples and the strategic deal's synergy-adjusted multiple, then explain which precedent is more relevant if you are valuing a company that realistically will only attract financial sponsor interest.

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