Splits and bonus shares: more slices, same pie

What both of them do to your holding

A split and a bonus both raise the number of shares in existence without changing what the company owns or earns. The price adjusts in the same ratio, so your holding is worth what it was the evening before and your percentage of the business is unchanged.

The arithmetic takes ten seconds and settles the question permanently. You hold 200 shares of a company quoted at ₹1,250, so ₹2.5 lakh. The company splits each share into five. You hold 1,000 shares, the quote is ₹250, and 1,000 multiplied by ₹250 is ₹2.5 lakh.

Now the other event, from the same starting point. The company instead issues one new share for every one held. You hold 400 shares, the quote is ₹625, and that is ₹2.5 lakh again. Two different mechanisms, one identical outcome, and in neither case did a rupee enter or leave the company.

So the quoted price after either event has not fallen in any sense that matters — the unit the price is quoted in got smaller. The pie was cut into more slices and you were handed every slice cut from your own piece. This is the same event covered in the overview of splits, bonuses, buybacks and rights issues, where the test is whether cash crosses the company's boundary. It does not here, in either case.

Which is where most explanations stop, and where the useful part starts. The two events are identical for you and genuinely different for the company, because they reach the same result through different lines of the balance sheet. That difference is not trivia. It decides which company can do which, and it changes how the company's own announcements have to be read afterwards.

A split divides the face value, and touches nothing else

Every share carries a nominal figure fixed when the capital was created — a number with no relationship to what the share trades at, which exists so that issued capital has something to be counted in. That figure is the face value.

A split divides it. A share of ₹10 face value becomes five shares of ₹2 face value, and everyone holding one now holds five. Nothing about the business has changed — only the size of the unit its capital is counted in.

Follow it onto the balance sheet, because this is the part that separates a split from a bonus. The share capital line is face value multiplied by the number of shares. The split divides the first term by five and multiplies the second by five, so the line lands exactly where it started. Reserves are not touched. Cash is not touched. Nothing on the balance sheet moves — two numbers whose product is unchanged simply trade places.

That has a consequence worth carrying: a split costs the company nothing it holds. It does not need accumulated profit, or spare cash, or anything else on the asset side. A company that has never retained a rupee can still split its shares, and one that has retained a great deal gains no extra room to do it. Any floor on how small a face value may go is a question of company law, and a separate one from the arithmetic here.

A bonus capitalises reserves, which is a real transaction

A bonus issue arrives at the same place by a route that does move money — between two lines that both already belonged to shareholders.

Start from the same company: one crore shares of ₹10 face value, so share capital of ₹10 crore, with ₹90 crore of reserves built up out of profit the company retained instead of paying out. Shareholders' funds are ₹100 crore. Now issue one bonus share for every one held. The face value stays at ₹10 and the count doubles to two crore, so share capital must become ₹20 crore.

The extra ₹10 crore has to come from somewhere on the same side of the balance sheet, and it comes from reserves, which fall to ₹80 crore. Shareholders' funds are still ₹100 crore. That book entry — an amount moved from retained profit into issued capital — is what capitalising reserves means, and it is the whole of what a bonus issue is. Nothing left the company. If reading those lines is unfamiliar, the balance sheet guide lays out where they sit.

Read the last row against the share capital and reserves rows. The holder cannot tell the two columns apart; the accountant is looking at two different transactions. And the reserves row is the one that bites: a bonus is limited by the reserves available, and a split is limited by nothing on the balance sheet at all.

So the choice between them is not cosmetic from the company's side. A business that has retained profit for two decades has a large reserves line and can capitalise a chunk of it. A younger company with a thin reserves line has little to capitalise however high its share price, while a split stays open to it regardless. Reading the route tells you something the ratio does not.

Reading the announcement afterwards

Three practical consequences follow from the mechanism, and all three are about reading rather than doing.

First, the two ratios count different things, so the colon is not enough. A bonus ratio conventionally counts new shares issued against shares already held — three new for every one held leaves you with four. A split ratio counts what one existing share becomes — one into three leaves you with three. Take the wording, not the ratio, and the difference between four and three shares stops being a surprise on the credit date.

Second, the face value line is a record of which route the company has taken. A company that has issued bonus after bonus still shows the face value it started with, because a bonus never touches it; its share capital line has grown instead. A company that has split repeatedly shows a face value well below where it began. Two companies with the same share count and the same market value can have arrived by entirely different histories, and the face value says which.

Third — and this is the one that quietly corrupts a payout history — Indian companies frequently declare a dividend as a percentage of face value rather than as rupees a share. On a ₹10 face value, a dividend of 100% is ₹10 a share. After a split to a ₹2 face value, that same ₹10 a share has to be announced as 500%, and the company has not increased its payout by a paisa. After a bonus, the face value is unchanged, so 100% still means ₹10 a share — but it is now paid on twice as many shares, which is twice the cash going out.

The rule that falls out of it: across a change in face value, dividend percentages are not comparable and rupees a share are. A payout history read in percentages through a split date will show a jump that never happened, and one read through a bonus will miss a genuine doubling of the cash. The yield arithmetic depends on getting that the right way round.

Why a company does either, and what it costs

The stated reason is almost always the same, and it is a reason about tradability rather than about value.

A share quoted at ₹8,000 cannot be bought by someone putting ₹3,000 a month into the market. At ₹800 it can. That is a real effect at the margin of who can hold the stock, and it is the honest version of the argument. The dishonest version is that the stock has become cheaper, which it has not — the price of the whole company is untouched, and market capitalisation is where you read that off. What changed is affordability, not cheapness.

The liquidity argument runs alongside it: more shares at a lower price allow more and smaller transactions, and a narrower spread as a proportion of the price. Whether that actually happens in a given stock is an empirical question and not one settled by the mechanics. Treat it as the conventional reading rather than as arithmetic.

The signalling argument is weaker still and worth naming so it can be discounted. A bonus is often read as management expressing confidence that earnings will support the larger share count, since the reserves being capitalised were built out of past profit. That is a judgement about intent, not a fact about the transaction, and the transaction itself is neutral by construction.

Now the costs, because nothing here is free:

• Reserves are consumed in a bonus. An amount that sat in a flexible line is now issued capital. A split spends nothing.
• Fractions appear in awkward ratios. Three bonus shares for every seven held gives a holder of 100 shares an entitlement that is not a whole number, and what happens to the fraction is set out in the announcement rather than by any rule of thumb.
• Cost records need restating. A purchase lot now corresponds to more shares than were bought, so the per-share figure on a broker's screen is no longer the price paid. Which cost and which date attach to the new shares is set by the tax rules rather than by the company, and it is what a gain computation runs on.
• The price step matters more where the smallest permitted increment is set in absolute terms rather than as a percentage, since the same increment is a larger fraction of a lower price.

What actually changes for you, and when

Two things happen on different clocks, and confusing them is the commonest source of alarm on an event that cannot cost you anything.

The quoted price is adjusted for the ratio on the ex-date. The new shares reach your demat account after the register has been read, which is later. In between, a portfolio screen shows the old share count at the new lower price, so a holding appears to have halved. Nothing is missing. The entitlement rules, the record date and the ex-date are set out in full in the corporate actions overview, and they work identically for both events.

The other change is to the tax computation, and it is worth settling before a sale rather than after. Whether a disposal of listed shares is treated as long-term turns on a holding period of 12 months, which makes the acquisition date attached to each share matter. Both events disturb it: a split replaces one share with several, and a bonus adds shares that were never bought. Which date and which cost the computation attributes to the new shares is set by the Income-tax Act rather than by the company — so that answer comes from the Act, not from the announcement and not from the broker's ledger.

Why an adjusted price series is not optional

Here is the second-order consequence that catches people reading charts rather than announcements, and it is the one place where a split or a bonus can genuinely cost you something.

A price history has to be adjusted for these events. Take the split from the first section: an unadjusted series shows ₹1,250 on one day and ₹250 the next, which is a fall of 80% that never occurred. Every figure computed across that date inherits the phantom — the return, the moving average, the maximum drawdown, the volatility, the 52-week high. The cliff is in the data, not in the company.

The subtler failure is the one worth knowing about, because the chart looks correct when it happens. Adjustment has two halves: pre-event prices are divided by the factor and pre-event volumes are multiplied by it, so that turnover on any historical day still comes out the same. A source that adjusts price and forgets volume produces a smooth, plausible-looking chart on which every volume comparison across the event is wrong by the ratio — relative volume, average daily turnover, any volume filter in a screener. Nothing looks broken, which is exactly why it survives.

Two quantities are immune, and both are useful as cross-checks. Market capitalisation is price multiplied by share count, and the event moves those two terms in opposite directions by the same factor. The price-to-earnings ratio is likewise unmoved, because earnings per share falls by the same factor the price does — so a screener whose P/E collapses by exactly the ratio across a split date is dividing the new price by the old per-share earnings, and only half the event has reached it.

The check takes a minute on any chart from any source. Find a date on which the company is known to have split or issued a bonus and look at the series across it. A vertical drop of exactly the ratio means the history is unadjusted, and every number computed from it is wrong by that factor for the whole period before the event.

Doing the check

None of this requires a tool. It requires knowing the event dates and looking at the series across them, which is a habit rather than a technique.

FNOTrader's Market Pulse scanner charts NSE and BSE price history alongside breadth, relative-strength and volume measures across the listed universe, and the check in the previous section applies to it exactly as it applies to anything else. Neither this article nor that scanner tells you whether a company is worth owning. What the mechanics can settle is narrower and worth having settled: a split and a bonus change the arithmetic of a holding and not the holding's worth, they get there by different entries, and a price series that has not been adjusted for them is describing a company that does not exist.

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