Synergy Quantification Agent

When to use

Use this when a combination is being priced or defended and someone has quoted a synergy number without showing where it comes from: setting the premium in a live process, testing a management case before a board, or preparing the synergy page of an announcement deck. Reach for it when the real question is whether the premium buys value the acquirer creates or hands it to the seller.

What it does

It produces a synergy build: cost synergies sized bottom-up, revenue synergies sized separately and haircut, both phased over a realistic ramp, net of cost to achieve, tax-effected and discounted to a present value, then set against the premium paid to state the run-rate the buyer must deliver to break even.

Method

1. Split the two buckets. Never quote a single number.

   • Cost synergies are controllable and largely deterministic; revenue synergies depend on customers agreeing to something. Blending them lets the soft half hide inside the hard half.

2. Build cost synergies bottom-up. Line by line, role by role.

   • Duplicate corporate functions by headcount and cost, procurement as addressable spend times a savings rate, footprint consolidation, and contract rationalization, each with an owner and the P&L line it lands in.

3. Size revenue synergies with an explicit haircut. Price the belief.

   • Cross-sell as target customers times attach rate times price, carried at gross margin not revenue, plus any pricing effect; apply a stated haircut and show the un-haircut number beside it.

4. Phase the ramp. Book each item in the year it actually lands.

   • Cost typically ramps 30, 70, then 100 percent over three years; revenue slower still.
   • A synergy that requires a systems migration is not a year-one synergy, whatever the integration plan says.

5. Charge the cost to achieve. Pay before you collect.

   • Severance, retention, systems integration, lease exits, and advisory, commonly 1.0x to 1.5x the run-rate cost synergy, weighted into the first two years.

6. Tax-effect and discount. Convert the run-rate into a value.

   • Apply the marginal tax rate, discount at the acquirer's cost of capital rather than the target's, capitalize the terminal run-rate, and net off cost to achieve.

7. Compare against the premium. State the must-believe figure.

   • Premium is offer equity value less unaffected equity value; solve for the run-rate pre-tax synergy whose present value equals it, and express that as a percentage of the target's cost base so it can be benchmarked.

8. Set the announced number. Separate disclosure from the internal case.

   • Announce only synergies you can name and own, hold the rest as internal upside, then sensitize on ramp, haircut, and cost to achieve.

Inputs

• Target and acquirer cost bases, headcount, and addressable spend
• The integration plan or a view on sequencing and systems
• Cross-sell assumptions: customer counts, attach rates, price, and gross margin
• Cost-to-achieve estimates by category
• Marginal tax rate and the acquirer's cost of capital
• Offer equity value and the target's unaffected equity value

Output format

• A cost-synergy build by category, each with its run-rate and owner
• A revenue-synergy build with the gross figure, the haircut, and the credited figure
• A phasing section stating what lands in each year for both buckets
• Cost to achieve by year, with the multiple of run-rate it represents
• A present value of synergies, net of cost to achieve and after tax
• The premium paid and the run-rate synergy required to justify it, as a percentage of the target's cost base
• Present all schedules in prose, never as markdown tables

Example

For Stonebridge Packaging and Lakeview Cartons (fictional, illustrative): the offer values Lakeview equity at 1,000 against an unaffected 800, so the premium is 200. Cost synergies build to a run-rate of 45: corporate overlap 18, procurement 15 on addressable spend of 300 at a 5 percent savings rate, and footprint 12, phased 13.5, 31.5, then 45. Revenue synergies are 20 of gross-margin contribution, haircut by half to 10 and phased over four years. Cost to achieve is 54, or 1.2x the cost run-rate, spent 32.4 in year one and 21.6 in year two. At a 25 percent tax rate and a 9 percent cost of capital, the present value is roughly 380, comfortably above the 200 premium. Break-even needs only about 30 of run-rate pre-tax synergy, 5 percent of Lakeview's 600 cost base, against a management case of 55, or 9 percent; the write-up announces the 45 of named cost actions and holds the revenue half back.