Accretion and Dilution: Whether a Deal Adds to Earnings
Accretion and dilution measure one thing: what a deal does to the buyer's earnings per share. Mahasagar Industrial Group Limited, invented, buying Sankalp Industrial Systems Limited, invented, at Rs 115.00 a share lifts earnings per share by 3.74 per cent if it issues shares and cuts them by 1.73 per cent if it borrows. Same business, same price, opposite signs.
Opposite signs from one price are not a paradox and not a trick of presentation. The pair falls out of the shape of the measure. Earnings per share is a fraction, and a transaction pushes on both halves of it at the same time. The sign is decided by whichever half moves proportionately more. The sign therefore turns on the price paid against the funding cost, and not on the quality of the target. Nothing inside the fraction knows what the business is worth, and no amount of care with the arithmetic can put it in.
Accretion vs Dilution: what is moving, and whose number is it?
Start with the smallest possible version of the idea, away from any company. A household of four people lives on Rs 40,000 a month, so income per head is Rs 10,000. A fifth person moves in and starts contributing. If what they bring is Rs 12,000, the pot becomes Rs 52,000 across five heads and income per head rises to Rs 10,400. If what they bring is Rs 8,000, the pot becomes Rs 48,000 across five heads and income per head falls to Rs 9,600. The newcomer is the same person in both stories, working just as hard. Their contribution beat the Rs 10,000 the household was already running at, or it did not, and that alone decided the direction.
Accretion is a rise in the acquirer's earnings per share caused by the deal, and dilution is a fall in it, and both are measured on the buyer's own number rather than on anything belonging to the target. The comparison is always the same shape: the buyer's earnings per share as things stand, set against the buyer's earnings per share once the transaction has been put through the accounts. If the second number is higher, the deal is accretive. If it is lower, the deal is dilutive. If the two are identical the deal is earnings neutral. Earnings neutral is a real and useful answer, not a failure to reach one.
Three things follow from that definition that people routinely get wrong, and it is worth nailing all three down now. The target has an earnings per share of its own, and it plays no part: it disappears at completion because the target stops being a separately owned thing. The combined company's revenue, its assets, its headcount and its market position all change, and none of them is being measured either. And the word measures a movement, never a level: a deal that leaves earnings per share at Rs 10.37 is accretive if the buyer was on Rs 10.00 and dilutive if the buyer was on Rs 10.50.
Accretion and dilution are movements in which figure, and whose?
Which three inputs decide the sign, and how many are about the target?
Once the fraction is in view, the list of things that can move it is short. Only three inputs matter, and it is worth counting how many of them describe the business being bought.
The first is the earnings the buyer actually acquires. The second is the price, and the price sets how much funding has to be raised. The third is the form of that funding, meaning whether the buyer hands over its own shares or hands over cash it has borrowed. Exactly one of those three inputs is a fact about the target, and even that one is an accounting line rather than a judgement about the business. The other two sit entirely on the buyer's side of the table, and one of them is a decision the buyer's treasury team makes.
The whole subject usually goes wrong at this point. A test that produces a plus or a minus feels as though it must be saying something about whether the acquisition was a good idea. It is not. The plus or the minus reports an arithmetic relationship between a price, a funding cost and a share count.
Which earnings are actually being bought, and which line gets missed?
Take the target's earnings apart line by line. The row that decides the answer sits right at the bottom, and readers rarely stay with it that far. Sankalp Industrial Systems Limited closed its base year with earnings before interest and tax of Rs 2,40,00,00,000. Its own borrowings cost it Rs 48,00,00,000 of interest, leaving profit before taxThe line reached once every cost including interest has been charged, but before the tax charge itself has been taken off. of Rs 1,92,00,00,000. A charge of Rs 48,00,00,000 then comes off at a rate of 25.0 per cent. The 25.0 per cent is assumed by this case and matches no published rate. Profit after tax lands at Rs 1,44,00,00,000.
Most people stop there and should not. Sankalp holds three quarters of Sankalp Coatings Private Limited, invented, and that subsidiary is fully consolidatedWhere a parent adds a subsidiary's whole revenue, cost and profit into its own statements line by line, even when it holds less than all of the subsidiary.. Every rupee the subsidiary earns is already sitting inside that Rs 1,44,00,00,000, and a quarter of Sankalp Coatings Private Limited sits with holders who are no part of the group at all. Their slice comes to Rs 6,00,00,000 a year. The outside quarter is not the buyer's to collect, it does not transfer when the parent's shares change hands, and it has no business being in the calculation.
The figure that belongs in an accretion test is the profit attributable to the owners of the parent, Rs 1,38,00,00,000, and not the group's profit after tax of Rs 1,44,00,00,000. On the target's 20,00,00,000 shares that is earnings per share of Rs 6.90. Using the wrong line credits the buyer with Rs 6,00,00,000 a year it will never see. The overstatement runs to 4.35 per cent of what is being bought, and it drags the multiple paid down from 16.67 times to 15.97 times. Neither error is large enough to look like an error, and that is what makes both dangerous.
| Sankalp Industrial Systems Limited, base year | Rupees |
|---|---|
| Earnings before interest and tax | 2,40,00,00,000 |
| Less interest on the company's own borrowings | 48,00,00,000 |
| Profit before tax | 1,92,00,00,000 |
| Less the tax charge, at the 25.0 per cent this case assumes | 48,00,00,000 |
| Profit after tax | 1,44,00,00,000 |
| Less the slice held outside the group in the coatings subsidiary | 6,00,00,000 |
| Profit attributable to owners, the figure the test uses | 1,38,00,00,000 |
Sankalp's profit after tax is Rs 1,44,00,00,000. Which figure belongs in the accretion calculation?
What do 11,50,00,000 new shares actually do to the buyer?
Now put a buyer on the other side. Mahasagar Industrial Group Limited is listed. The buyer has 50,00,00,000 shares trading at Rs 200.00, and its market capitalisationThe share count multiplied by the traded share price. The market puts that figure on the whole of a company's equity on the day. is Rs 1,00,00,00,00,000. Mahasagar earns Rs 5,00,00,00,000 after tax, so its earnings per share is Rs 10.00 and its shares change hands at 20.00 times that.
The indicative offer for the whole of Sankalp is Rs 115.00 a share. Across 20,00,00,000 shares that is Rs 23,00,00,00,000 for the equity, and against attributable earnings per share of Rs 6.90 it is a multiple paid of 16.67 times.
Fund it entirely by issuing Mahasagar's own shares and the arithmetic is short. Rs 23,00,00,00,000 raised at Rs 200.00 a share is 11,50,00,000 new shares, exactly, with nothing left over. The share countHow many shares a company has in issue at a given moment. Put more into issue and every existing holder's slice of the same profit gets thinner. goes from 50,00,00,000 to 61,50,00,000. Combined profit, with no savings assumed anywhere, is Rs 5,00,00,00,000 plus Rs 1,38,00,00,000, being Rs 6,38,00,00,000. Divide and the answer is Rs 10.3740 a share against Rs 10.00 before, an accretion of 3.74 per cent.
Two growth rates make up the 3.74 per cent, so look at the growth rates rather than at the accretion figure. The profit pool grew by 27.60 per cent and the share count grew by 23.00 per cent, and the gap between those two percentages is the whole of the 3.74 per cent. Another way to see the same thing: the 11,50,00,000 new shares would each need to earn the old Rs 10.00 for earnings per share to stand still, which is Rs 1,15,00,00,000 of earnings they have to carry. Sankalp delivers Rs 1,38,00,00,000. The surplus of Rs 23,00,00,000 spread over the enlarged 61,50,00,000 shares is Rs 0.3740 a share, and there is the accretion, arrived at from a completely different direction.
What does borrowing really cost once the tax deduction is allowed for?
Change nothing about the target and nothing about the price. Mahasagar now borrows the Rs 23,00,00,00,000 instead, at a pre-tax cost of 8.50 per cent. The interest bill is Rs 1,95,50,00,000 a year.
The interest is not what reaches earnings, though, and this is the step readers most often drop. Interest reduces taxable profit, and a quarter of the charge comes back through a smaller tax bill, so what actually lands on the bottom line is the remaining three quarters: Rs 1,46,62,50,000. Combined profit becomes Rs 5,00,00,00,000 plus Rs 1,38,00,00,000 less Rs 1,46,62,50,000, being Rs 4,91,37,50,000. Nothing was issued, so the divisor is still 50,00,00,000 shares. Earnings per share is Rs 9.8275, against Rs 10.00 before, a dilution of 1.73 per cent.
The cash route pays for the deal above the line while the share route pays for it below the line, and that single structural difference is why one price can produce two answers with opposite signs. Notice also what the cash route does not do: it adds no shares at all, so every rupee of the target's earnings that survives the interest charge is spread over the same 50,00,00,000 holders as before. Cash deals therefore look wonderful when borrowing is cheap and turn ugly quickly when it is not.
Skipping the tax deduction is an expensive slip. Charge the full Rs 1,95,50,00,000 against profit and earnings per share reads Rs 8.85, a dilution of 11.50 per cent rather than 1.73 per cent. The gap between 1.73 and 11.50 separates a deal a board treats as marginal from one it treats as unaffordable, and a single missing multiplication opens it.
Why does Rs 23,00,00,00,000 borrowed at 8.50 per cent cost Rs 1,46,62,50,000 in this calculation rather than Rs 1,95,50,00,000?
What do the two routes look like side by side at one price?
With the two routes in adjacent columns, the whole comparison is visible at once. Every row above the funding line is identical. The target is the same target, the price is the same Rs 115.00, the earnings acquired are the same Rs 1,38,00,00,000. Only the funding row differs, and only the funding row has to differ for the sign to flip.
| Pro forma, base year | All-share route | All-cash route |
|---|---|---|
| Buyer's own profit after tax | 5,00,00,00,000 | 5,00,00,00,000 |
| Earnings attributable to owners, acquired | 1,38,00,00,000 | 1,38,00,00,000 |
| After-tax cost of the funding | nil | 1,46,62,50,000 |
| Pro forma earnings, meaning the combined figure restated as though the deal had already gone through | 6,38,00,00,000 | 4,91,37,50,000 |
| Shares in issue after the deal | 61,50,00,000 | 50,00,00,000 |
| Earnings per share, against Rs 10.00 before | Rs 10.3740 | Rs 9.8275 |
| Movement | 3.74 per cent accretive | 1.73 per cent dilutive |
The same deal at the same Rs 115.00 is 3.74 per cent accretive in shares and 1.73 per cent dilutive in cash. What changed?
Before reading on: at what pre-tax borrowing cost would the all-cash route leave earnings per share exactly unchanged?
At what borrowing cost does the cash route stop adding to earnings?
The cash route dilutes at 8.50 per cent. The same route would obviously accrete at a low enough rate. Somewhere between the two there is a rate at which it does neither, and finding it takes one line of algebra rather than a search.
Set the after-tax interest equal to the earnings acquired. At that point the numerator has gained exactly as much as it has lost, and the denominator has not moved at all. Interest on Rs 23,00,00,00,000 at 8.00 per cent runs to Rs 1,84,00,00,000, and once the tax deduction has done its work Rs 1,38,00,00,000 remains. Sankalp contributes precisely that. The breakeven borrowing cost is exactly 8.00 per cent, and the 8.50 per cent this deal was priced at sits fifty basis pointsA hundredth of one percentage point each. Rates get quoted this way so that a move from 8.00 to 8.50 is a clean fifty rather than a decimal argument. above it.
| r* | the pre-tax borrowing cost at which earnings per share does not move |
| ET | the earnings attributable to owners that the buyer acquires |
| P | the cash handed over for the equity |
| t | the buyer's assumed effective tax rate, 25.0 per cent in this case |
The fifty basis points are worth pricing on their own, and they turn out to be the whole story. Rs 23,00,00,00,000 at half a percentage point is Rs 11,50,00,000 of extra interest, or Rs 8,62,50,000 after tax. Spread over 50,00,00,000 shares that is Rs 0.1725 a share, or 1.725 per cent of Rs 10.00. The entire dilution on the cash route is fifty basis points of borrowing cost, and none of it is a statement about Sankalp.
Move the borrowing cost and watch the crossing point
Everything except the funding rate is nailed down: the same Rs 23,00,00,00,000 of cash, the same Rs 1,38,00,00,000 of earnings acquired, the same 50,00,00,000 shares, the same assumed 25.0 per cent rate. The dial starts where the deal was actually priced.
Why does the printed column of changes not step evenly?
Run across a ladder of borrowing costs, the same arithmetic throws up something odd in the printed figures. Each fifty basis points costs exactly Rs 8,62,50,000 after tax. On 50,00,00,000 shares that is exactly Rs 0.1725 a share, and exactly 1.725 percentage points of earnings per share. The underlying step never varies. Yet subtracting one printed cell from the printed cell above it gives 1.72 at some rungs and 1.73 at others.
The unevenness is entirely a printing effect. Two decimals get applied to every cell separately, and only afterwards does anybody subtract, so a constant underlying difference does not survive. The rungs that print 1.73 are 6.50 to 7.00, 7.50 to 8.00, 8.00 to 8.50, 9.00 to 9.50 and 10.00 to 10.50. The rungs that print 1.72 are 6.00 to 6.50, 7.00 to 7.50, 8.50 to 9.00, 9.50 to 10.00 and 10.50 to 11.00. Five each, alternating almost but not quite regularly. The only place the pattern doubles back is either side of the crossing at 8.00.
The rounding is not a small point of housekeeping. A difference should always be computed from the unrounded figures and rounded once, never computed by subtracting two figures that have already been rounded. A reader who takes the printed column at face value will conclude that the relationship bends, and it is dead straight.
| Pre-tax cost | Earnings per share | Against Rs 10.00 | Printed step | True step |
|---|---|---|---|---|
| 6.00 per cent | Rs 10.6900 | 6.90 accretive | first rung | first rung |
| 6.50 per cent | Rs 10.5175 | 5.18 accretive | 1.72 | 1.725 |
| 7.00 per cent | Rs 10.3450 | 3.45 accretive | 1.73 | 1.725 |
| 7.50 per cent | Rs 10.1725 | 1.73 accretive | 1.72 | 1.725 |
| 8.00 per cent | Rs 10.0000 | earnings neutral | 1.73 | 1.725 |
| 8.50 per cent | Rs 9.8275 | 1.73 dilutive | 1.73 | 1.725 |
| 9.00 per cent | Rs 9.6550 | 3.45 dilutive | 1.72 | 1.725 |
| 9.50 per cent | Rs 9.4825 | 5.18 dilutive | 1.73 | 1.725 |
| 10.00 per cent | Rs 9.3100 | 6.90 dilutive | 1.72 | 1.725 |
| 10.50 per cent | Rs 9.1375 | 8.63 dilutive | 1.73 | 1.725 |
| 11.00 per cent | Rs 8.9650 | 10.35 dilutive | 1.72 | 1.725 |
The printed column steps by 1.73 points from 6.50 to 7.00 per cent and by 1.72 points from 7.00 to 7.50. What is going on?
What single condition settles the sign of a share-funded deal?
Go back to the share route and ask what decides its sign in general, not just in this case. Write out the pro forma earnings per share, insist that it beat the old one, and cancel what cancels. The surviving condition is startlingly bare.
| SA | the acquirer's own share price, Rs 200.00 here |
| eA | the acquirer's earnings per share before the deal, Rs 10.00 |
| p | the price paid for each target share, Rs 115.00 |
| eT | the target's attributable earnings per share, Rs 6.90 |
Read the condition as a swap rather than as algebra and it stops feeling like a coincidence. Mahasagar is handing over paper that the market prices at 20.00 times its earnings, and receiving earnings priced at 16.67 times. Mahasagar gives up less earnings per share than it collects, so its own per share figure has to rise. Turn the two multiples around and the trade runs the other way, and the deal dilutes, whatever either business happens to be like.
Be precise about what the condition settles and what it leaves open: the two multiples decide the sign, and they do not decide the size. The size also depends on how large the purchase is relative to the buyer. Hold both multiples exactly where they are and double the size of the target, and the accretion grows well past 3.74 per cent. The same proportional advantage is being applied to a bigger slice of the buyer. Any statement that a given pair of multiples always produces a given percentage is wrong, and it is a common thing to say.
Three conditions have to be held still for the rule to hold at all, and every one of them is regularly broken in practice. No savings are assumed. A large enough saving turns a dilutive share deal accretive on its own. The acquirer's share price is assumed not to move on the announcement, and that assumption fixes how many shares the purchase costs. And there is assumed to be nothing else in the consideration, no deferred slice and no cash top-up. All three conditions are named whenever the rule is used.
An acquirer trading at 14.00 times its own earnings offers all-share consideration at 16.67 times the target's, with no savings assumed. Is that accretive?
What do expected cost savings do, and what gets to them first?
Deals are rarely presented without a claimed saving, and this one is no exception. The case assumes Rs 45,00,00,000 a year, pre-tax, from combined buying and a shared administrative function, fully in place by the second year. Two businesses that each run a payroll team, a ledger team and a purchasing desk can plausibly run one of each instead, and buying steel through one order rather than two plausibly costs less per tonne.
The trap is not in the saving itself. The trap is in carrying the saving straight to earnings per share. A rupee saved raises taxable profit exactly as a rupee earned does, so a claimed pre-tax shared service centreOne combined back office running the payroll, ledgers and administration that two separate companies would otherwise each staff and each pay for. saving reaches the per share line only after tax has taken its quarter. Rs 45,00,00,000 becomes Rs 33,75,00,000. Using the untaxed figure overstates the effect by a third. A third is not a rounding slip.
The taxed figure does something drastic to the cash route. Combined profit goes from Rs 4,91,37,50,000 to Rs 5,25,12,50,000, earnings per share goes from Rs 9.8275 to Rs 10.5025, and the answer moves from 1.73 per cent dilutive to 5.03 per cent accretive. The sign turned over. Nothing about the target changed, nothing about the price changed and nothing about the borrowing changed; a single assumed line did all of it. A claimed saving therefore deserves more scrutiny than any other input in the model, and the size of the claim needed to flip a sign is worth computing and stating.
Rs 45,00,00,000 a year of pre-tax savings are claimed. What figure reaches earnings per share?
What the test is genuinely useful for
Given everything above, the obvious question is why anybody runs it. The honest answer is that it is a fast, hard-to-fake reading of one specific thing: how the reported per share number will look after the transaction has been put through the accounts. Several people need exactly that.
A lender reads it as a rough check on whether the funding it is being asked to provide is affordable out of the earnings it is being lent against. If a purchase dilutes heavily on cash, the interest is eating more than the acquired earnings, and the lender wants to know that before the covenant package is drafted, not after.
An analyst covering the buyer reads it as the bridge between two forecasts. The published estimate for next year was built on the buyer standing alone. Once a deal is announced, the estimate has to be rebuilt, and the accretion arithmetic is the shortest honest route from the old number to the new one, provided every assumption inside it is stated.
An investor already holding the buyer's shares reads it as one input among several, and specifically as a check on what happens to their slice. On the share route their holding is diluted by 11,50,00,000 new shares, a real change in their position whatever happens to earnings.
And the household version stays useful as a bearing. A paying lodger raises income per head only if the rent beats what the household already runs at per person. Borrowing to extend the house raises it only if the extra rent beats the interest. Neither test says whether the extension was worth building.
Before reading the failure: does a 3.74 per cent accretive deal establish that the buyer paid a sensible price?
What warning has to travel with every accretion figure?
Accretion reported as a verdict
No spreadsheet produces this failure. A board paperThe written pack circulated to directors ahead of a meeting, where a transaction is argued and where a single summary line does most of the persuading. does, in a single summary sentence whose every number is correct. Earnings per share reads Rs 10.3740 on the share route where Rs 10.00 stood before, the movement is 3.74 per cent, and the pack writes that up as the transaction being good for shareholders. The arithmetic is right. The conclusion does not follow from it.
Here is the figure sitting on the same case record that the accretion calculation never touches. Valued standaloneMeasured for the business by itself, with no buyer, no change of hands and no combination assumed. on its own discounted cash flows, Sankalp's equity comes to Rs 16,88,13,79,094. The offer on the table is Rs 23,00,00,00,000. Between the two sits Rs 6,11,86,20,906.
The all-share route is 3.74 per cent accretive at that offer, and it would report exactly 3.74 per cent accretive if the standalone value were half of that or twice it. The standalone value is not an input to the calculation.
The mirror image is the same error and gets made just as often. A purchase that dilutes by 1.73 per cent is turned down on that ground, when the whole of the dilution is fifty basis points of borrowing cost above a breakeven and says nothing about the business either. Accretion is not value. A deal can add to earnings per share and destroy value, and it can subtract from earnings per share and create it. The Rs 6,11,86,20,906 is a difference between two figures, and whether it is a premium worth paying is a question the accretion test never asks.
Where the conditions on a transaction like this are actually set
Arithmetic settles none of the conditions a transaction like this has to meet. Each object the calculation works with sits under a named authority, and the rows below key those objects to the place their conditions are set.
| The object in this guide | Who sets the conditions on it | Where the current text sits | Standing |
|---|---|---|---|
| The offer for the shares of a listed company, and what has to be disclosed about it | The Securities and Exchange Board of India | sebi.gov.in | changes; read the live text before relying on it |
| The share issue that funds the all-share route, and the shareholding it creates | The Ministry of Corporate Affairs | mca.gov.in | changes; read the live text before relying on it |
| The borrowing behind the all-cash route, where a regulated lender or a flow across the border is involved | The Reserve Bank of India | rbi.org.in | changes; read the live text before relying on it |
| The 25.0 per cent rate used in every calculation above | Nobody. The case sets it for itself | written into the invented record | an assumption for teaching, matching no published rate |
| Any threshold, trigger, tenure or timetable a reader might want | Whichever body the rows above name | at that body's own site | set by the body named in the row, and read there |
Where the distinction between a per share measure and value is set out
| Reading | What it is drawn on for | Where |
|---|---|---|
| Aswath Damodaran, valuation material | the discipline of separating what a measure contains from what it is taken to mean | pages.stern.nyu.edu |
| Koller, Goedhart and Wessels, Valuation | the argument that a per share measure and a value measure answer different questions | named by title, not quoted |
Mahasagar Industrial Group Limited, Sankalp Industrial Systems Limited and Sankalp Coatings Private Limited are invented.
Educational material. Not advice on any investment, tax, budget or market position.
| Named above | What it stands in for | Status |
|---|---|---|
| Mahasagar Industrial Group Limited | the listed buyer | invented |
| Sankalp Industrial Systems Limited | the listed business being bought | invented |
| Sankalp Coatings Private Limited | the part-held subsidiary inside it | invented |
