When you start learning about the stock market you run into a pile of terms at once — shares, issued shares, outstanding shares, market capitalisation, promoter holding, free float. They sound complicated. The idea underneath is not.
So let us forget the stock market for a few minutes and start a pizza company instead. By the end of this you will know exactly what are outstanding shares, what changes them, what does not, and why the number matters more than most beginners realise.
The short definition
Outstanding shares are the shares of a company that are currently held by its shareholders.
Those shareholders can be founders, promoters, public investors, mutual funds, foreign investors, domestic institutions, employees — anyone holding the stock.
In plain words: outstanding shares tell you how many shares of a company are currently in the hands of owners, leaving out any shares the company itself has bought back and is holding as treasury shares.
That last clause is the part people forget. Keep it in mind, because it becomes important later.
Let us start a pizza company
Imagine we start a company called Pizza King Ltd.
The founders decide to divide ownership of the company into 1,000 equal parts. Each part is called a share.
Think of the company as a pizza. The whole pizza is the entire company. The slices are the shares. Cut it into 1,000 equal slices and each slice is one small piece of ownership.
Say there are three founders:
| Shareholder | Shares | Ownership |
|---|---|---|
| Founder A | 500 | 50% |
| Founder B | 300 | 30% |
| Founder C | 200 | 20% |
| Total | 1,000 | 100% |
Every one of the 1,000 shares is held by somebody. So the outstanding share count is 1,000.
Ownership percentage is just simple division. Founder A holds 500 out of 1,000, which is 50%. Founder B holds 300 out of 1,000, which is 30%. That is the whole calculation.
What happens when the company goes public
Pizza King does well. The founders decide to bring an IPO and let public investors in.
Suppose Founder A sells 100 of his existing shares to the public. The table now looks like this:
| Shareholder | Shares |
|---|---|
| Founder A | 400 |
| Founder B | 300 |
| Founder C | 200 |
| Public investors | 100 |
| Total | 1,000 |
Notice what did not change. The total is still 1,000. Only the owner of some slices changed hands. Nobody baked a new slice.
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Does selling shares change the outstanding count?
Not by itself. This is one of the most important things to get right.
When an existing shareholder sells to another investor, the shares simply move from one owner to another. They do not disappear and no new ones appear.
Before the sale, Founder A held 500. After selling 100, he holds 400 and the public holds 100. Add it up: 400 + 300 + 200 + 100 = 1,000. Same as before.
This is worth internalising because it explains something that confuses a lot of new investors: when you buy a share on the exchange, you are buying it from another investor, not from the company. The company is not involved in that transaction at all and receives none of that money.
Outstanding shares vs public shares vs free float
Another common mix-up. In our example Pizza King has 1,000 outstanding shares, but the founders still hold 900 of them and the public holds only 100.
| Category | Shares |
|---|---|
| Founder A | 400 |
| Founder B | 300 |
| Founder C | 200 |
| Public | 100 |
| Outstanding shares | 1,000 |
So public shares are 100, while outstanding shares are 1,000. They are different numbers because outstanding shares include everybody's holdings, not just the public's.
Free float is a third idea again. It generally refers to the shares actually available for trading in the market, after excluding holdings that are not treated as freely tradable under the applicable rules. In our simplified example that would be the 100 public shares, not the full 1,000.
Three different numbers, three different uses. Mixing them up is how people end up miscalculating what a company is worth.
What happens when the company issues new shares
Now a different situation. Pizza King needs money to build a new factory, so the company issues 100 brand-new shares.
Before: 1,000 outstanding shares. After: 1,100.
| Shareholder | Shares |
|---|---|
| Founder A | 400 |
| Founder B | 300 |
| Founder C | 200 |
| Existing public investors | 100 |
| New investors | 100 |
| Total | 1,100 |
This is fundamentally different from a founder selling. Compare the two:
| Existing shareholder sells | Company issues new shares | |
|---|---|---|
| New shares created? | No | Yes |
| Total shares after | 1,000 (unchanged) | 1,100 |
| Who gets the money? | The selling shareholder | The company |
That distinction is the difference between an Offer for Sale and a Fresh Issue in an IPO — and it tells you whether your money is going into the business or into an existing owner's pocket. Both are legitimate. They are just not the same thing.
What happens during a buyback
Pizza King now has 1,100 outstanding shares. Suppose the company decides to buy back 100 of its own shares from the market.
After the buyback, shareholders outside the company hold 1,000 shares, and the company itself holds the 100 it bought. Those company-held shares are generally treated as treasury shares.
So the outstanding count drops back to 1,000.
The rule to remember: shares bought back by the company are not counted as outstanding while the company is holding them.
This is also why buybacks tend to be viewed positively by existing shareholders. Fewer outstanding shares means each remaining share represents a slightly larger slice of the same pizza.
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Issued shares vs outstanding shares
This is where a lot of beginners get stuck, and the buyback example makes it easy.
Pizza King has issued 1,100 shares in total. It then bought back 100.
| Particular | Shares |
|---|---|
| Issued shares | 1,100 |
| Shares bought back (treasury) | 100 |
| Outstanding shares | 1,000 |
Issued shares tell you how many shares the company has ever issued. Outstanding shares tell you how many of those are currently held outside the company.
Where there has been no buyback, the two numbers are simply equal. That is why in many companies you will see them quoted interchangeably — and why it trips people up the first time they see a company where they differ.
Why the number matters: market capitalisation
Here is where all of this pays off. The most common use of the outstanding share count is calculating what a company is worth in the market.
Market Capitalisation = Share Price × Outstanding Shares
Take Pizza King with 1,000 outstanding shares and a share price of ₹1,000:
1,000 × ₹1,000 = ₹10,00,000 — a market value of ₹10 lakh.
Now suppose the share price rises to ₹1,500 while the share count stays at 1,000:
1,000 × ₹1,500 = ₹15,00,000
The company did not create a single new share. Only the price moved, so the market cap moved with it.
But if the company issues another 200 shares and the price is ₹1,500:
1,200 × ₹1,500 = ₹18,00,000
This is exactly why share price alone tells you almost nothing about how big a company is. A ₹100 stock with a huge share count can be far larger than a ₹5,000 stock with very few shares. You need both numbers.
Dilution: when your shares stay the same but your ownership shrinks
One more consequence worth understanding before you invest in anything.
Originally, Founder A held 500 shares out of 1,000 — that is 50% of the company.
Now the company issues 200 new shares, taking the total to 1,200. Founder A still holds exactly 500 shares. Nobody took anything from him.
But his ownership is now 500 ÷ 1,200 = 41.67%.
Same number of shares, smaller share of the pizza. This is called dilution, and it happens every time a company issues new equity.
The lesson: your number of shares and your percentage ownership are two different things. A company that repeatedly issues new shares is quietly shrinking every existing shareholder's slice — which is why frequent dilution is something worth checking before you buy.
Everything in one table
| Term | What it means |
|---|---|
| Authorised shares | The maximum number of shares the company is permitted to issue under its authorised capital |
| Issued shares | The shares the company has actually issued |
| Outstanding shares | Shares currently held by shareholders, excluding treasury shares |
| Free float | Shares generally available for trading in the market under the applicable rules |
And the pizza version, which is the one you will actually remember:
- The whole pizza = the company
- A slice = one share
- The people holding slices = shareholders
- Total slices currently held by shareholders = outstanding shares
- Slices the company bought back and kept = treasury shares, not counted as outstanding
The full journey, in one example
Let us run Pizza King through everything at once.
- Company starts with 1,000 shares split between three founders. Outstanding = 1,000
- Founder A sells 100 shares to the public. Ownership changes, nothing is created. Outstanding = 1,000
- Company issues 200 new shares to raise money. Outstanding = 1,200
- Company buys back 100 shares and holds them as treasury. Outstanding = 1,100
The journey: 1,000 → 1,000 → 1,200 → 1,100
Once you can follow that sequence and explain why each step did or did not change the number, you understand outstanding shares better than most people who have been investing for years.
From here, topics like promoter holding, public holding, free float, IPO structure, fresh issue versus offer for sale, dilution and buybacks all get considerably easier — because they are all just different ways of moving those pizza slices around.
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Where to go from here
Outstanding shares are one piece of a bigger picture. Reading a company properly also means understanding order types, how to read a chart, how to check a balance sheet, and — most importantly — how to size a position so a single mistake does not cost you badly.
Our Stock Market for Beginners course covers all of that across eight modules for Rs {{price:stock-basics}}, with lifetime access. It is designed for people starting from absolute zero, taught in a Hindi-English mix.
To be clear about what we do not do: we do not give buy or sell tips, we do not run a calls service, and we never promise returns. This article is educational. Every investment decision, and its outcome, stays yours.
Disclosure: Atul Shrivastava is an Authorised Person of Zerodha Broking Ltd. (SEBI Reg: INZ000031633) — NSE AP Reg: AP2516003481. The account-opening links on this page are under that AP registration and earn a revenue share when an account is opened through them. TheFinBaba is not a SEBI-registered Investment Adviser; this content is educational and informational, not investment advice. Investing carries risk of loss.
Frequently Asked Questions
What are outstanding shares in simple words?
Outstanding shares are all the shares of a company currently held by shareholders - founders, promoters, the public, mutual funds and institutions - excluding any shares the company has bought back and holds as treasury shares. If a company divides itself into 1,000 shares and all of them are held by owners, its outstanding share count is 1,000.
Do outstanding shares change when someone sells shares on the exchange?
No. When one investor sells to another the shares simply change hands, so the total stays the same. Outstanding shares only change when the company issues new shares, which increases the count, or buys shares back, which reduces it.
What is the difference between issued shares and outstanding shares?
Issued shares are all the shares a company has ever issued. Outstanding shares are the ones currently held outside the company. If a company has issued 1,100 shares and bought back 100, issued shares are 1,100 while outstanding shares are 1,000. Where there has been no buyback the two numbers are equal.
How are outstanding shares used to calculate market capitalisation?
Market capitalisation is the share price multiplied by the number of outstanding shares. A company with 1,000 outstanding shares trading at Rs 1,000 has a market cap of Rs 10 lakh. This is why share price alone does not tell you how big a company is - you need the share count too.
What is dilution?
Dilution is when a company issues new shares, so each existing shareholder's percentage ownership falls even though their number of shares has not changed. A founder holding 500 out of 1,000 shares owns 50%; if the company issues 200 new shares, that same 500 becomes 41.67% of 1,200.
Are outstanding shares and free float the same thing?
No. Outstanding shares include holdings of everyone - promoters, institutions and the public. Free float generally refers only to the shares actually available for trading in the market, after excluding holdings not treated as freely tradable under the applicable rules.
Related Reading
- Stock Market for Beginners - the full 8-module course
- Stock market course in Indore
- SEBI rules for retail algo traders
- Common questions about our courses
Disclaimer: TheFinBaba provides educational content only - this is not investment advice. Trading involves risk of loss.
