What is the Stock Market?

Maya's restaurant is cut into 10 shares. Titan Company, which makes Titan and Fastrack watches, Tanishq jewellery and Titan Eye+ glasses, was cut into 887786160 shares, about 88.8 crore (888 million), held by 724298 shareholders on 30 September 2026, according to its shareholding filing. One Titan share is about 1 in 88.8 crore of the company. There is nothing special about the number: it is how many pieces Titan has issued over its life. A shareholder is anyone who owns at least one share. People also say stocks or equities; in everyday use they mean the same thing, and a share is one unit.

Every ordinary share of one company carries the same rights, so a buyer never needs to know whose share she gets. Titan's largest owners, the Tata group and TIDCO (a Tamil Nadu state company that set up Titan with Tata), hold the same kind of share Maya would; theirs simply number many crores. That sameness is what lets strangers trade shares on an exchange.

What one share gives: a vote at the owners' general meetings; a part of any dividend, the cash a company may pay its owners out of its profits, only when it decides to; a place in line for whatever is left if the company closes, after everyone it owes; and the right to sell it to anyone willing to buy.

What it does not give: no claim on the company's goods, cash or stores; no right to ask for the money back, because a share is not a loan; and no say in how the company is run day to day.

And the limit of the loss: shareholders are not liable for the company's debts. If you pay for your shares in full, the most you can lose is what you paid. Borrowing to buy changes that, as margin and leverage explains.

Before: Swiggy, the Bengaluru company behind the Swiggy food-delivery and Instamart apps, was not listed. Its shares belonged to the investment firms and people who had funded it, the largest being Prosus. It wrote a prospectus, a public document that describes the business, its risks and the offer, and filed the draft with SEBI, India's market regulator, which can ask for changes. The prospectus cover carries a box every Indian IPO must carry: invest only money you can afford to lose entirely, and the shares "have not been recommended or approved by SEBI". The review is about what the company must disclose, not whether the business or the price is good.

Wednesday 6 to Friday 8 November 2024: anyone with a demat account could bid, that is, ask to buy at a price from ₹371 to ₹390 a share, in lots of 38 shares, the smallest bundle you can bid for. One lot at ₹390 cost ₹14820. The money was blocked in the bidder's bank account, not yet paid.

Monday 11 November: allotment, the sharing out of the shares. Swiggy and its selling owners fixed the price at ₹390, the top of the range: the issue price the public paid. When more shares are bid for than are on offer, some bidders get none. Those allotted paid from the blocked money and saw the shares in their demat accounts the next day; everyone else's money was freed.

Wednesday 13 November: listing day on NSE and BSE, three working days after bidding closed. On NSE, Swiggy's shares opened at ₹420, 7.7% above the ₹390 the IPO buyers paid. Listing let the shares trade; it did not fix their price. On Monday 19 October 2026 they closed on NSE at ₹229.00, 41% below ₹390.

From listing day on, the company is out of the deal: owners trade with each other. What the company accepts in return is the exchange's rules for as long as it stays listed, such as publishing its results every three months for anyone to read. Every step of an IPO, from price band to allotment rules, is in IPOs explained.

The primary market is where shares are sold to the public for the first time. In Swiggy's IPO, buyers paid ₹11327 crore in all (about $1.3 billion). ₹4499 crore of it paid for new shares, created for the IPO, and went to Swiggy to spend on its business: a fresh issue. The other ₹6828 crore paid for shares its existing owners already held and chose to sell, and went to them: an offer for sale. So about 60% of the money in Swiggy's IPO never reached Swiggy. Both were the public's first chance to buy those shares, so both are the primary market.

Some IPOs pay the company nothing at all. Hyundai Motor India's IPO of October 2024, about ₹27870 crore (about $3.3 billion), was all existing shares, sold by its Korean parent. And a company that is already listed can come back later to sell more new shares, for example in a rights issue to its owners, as corporate actions shows.

The secondary market is investors trading existing shares with each other. Say Maya, once her accounts are open, places an order before the market opens on Monday 19 October 2026 to buy 1 Titan share at no more than ₹4460, her limit. It is matched at the opening price, ₹4452.00. Her ₹4452.00 goes to whoever sold, an investor she will never meet (small charges and taxes come on top). Titan receives nothing.

Day after day, most of the stock market is the secondary market. On that same Monday, NSE's trading in shares alone came to ₹96326 crore: about 8.5 times Swiggy's whole IPO, in one day. Jio Platforms' IPO, India's largest, took its bids that same week, from 21 to 23 October, and raised about ₹30188 crore (about $3.2 billion): about a third of that one Monday.

Why do companies care about a market that pays them nothing? Because buyers put money into IPOs knowing they can sell later. Without the secondary market's way out, few would buy in the primary one: the reason the stock market exists at all.

How do two strangers agree without talking? Each buyer tells the exchange the most she will pay, each seller the least he will take, and a trade happens only where the two meet. The exchange keeps the waiting orders in a list and matches them by its rules, as how a stock exchange works shows step by step.

Titan's real day on NSE, Monday 19 October 2026: it opened at ₹4452.00 (Maya's match), traded between ₹4402.70 and ₹4494.40, and closed at ₹4424.20. 651506 shares changed hands in 58647 trades. Every one of those trades had a buyer and a seller who accepted its price; nobody announced a price in advance. Titan also traded on BSE that day, at nearly the same prices, because buyers and sellers can use either.

Nor does the company, the exchange or SEBI set the price. When news or expectations change, buyers and sellers change the prices they will accept, and the next agreements move.

And "the market" in a headline? When the news said the market fell that Monday, it meant an index, a measure built from many large shares: the Nifty 50, made of 50 of them, closed 1.11% lower. Market indices explains how one is built.

Monday 19 October, the match. Maya enters the share, the number and her price limit in her broker's app. A broker is a firm registered with SEBI and a member of the exchange that sends your orders and handles your money; hers is Sahi. The broker checks that the money is in her trading account (the account at her broker that holds money for trades) and sends the order to NSE, which matches it with an unknown seller's order at the opening price, ₹4452.00. A stock exchange matches orders by its rules; it neither buys nor sells. The stock market is the whole system; an exchange is one part of it.

Tuesday 20 October, the pause. A market holiday (Dussehra): nothing moves. The deal is agreed but not finished. Settlement counts working days, not calendar days.

Wednesday 21 October, the swap. NSE Clearing, the clearing corporation, stepped into the deal on Monday, so each side's broker deals with it rather than with a stranger. It collects the money from the buyer's side and the share from the seller's side, and hands each to the other. If one side fails to pay or deliver, the clearing corporation, not Maya, deals with it, by rules set in advance.

CDSL, a depository, then records the share in Maya's demat account: one line, "Titan Company Limited · INE280A01028 · 1", the ISIN being the share's ID number. The depository keeps the official record of who owns which shares, so her shares stay hers even if she changes broker; since 25 February 2025 bought shares go straight into the buyer's own demat account. The seller receives ₹4452.00, less the seller's own charges. That moment is settlement: T+1, the trade day plus one working day, as Clearing & T+1 Settlement explains.

Over all of them stands SEBI, India's market regulator, which registers and watches every firm on the path (how investors are protected). Every market has the same parts under other names: in the US, brokers, the NYSE and Nasdaq, under the SEC and FINRA.

Dividends: for the year to March 2026, Larsen & Toubro, the engineering and construction company that built most of Mumbai's Trans Harbour Link, paid a final dividend of ₹38 a share to the owners on its register on 22 May 2026. The company decides each dividend: it is never owed, it can be cut, and some profitable companies pay little or nothing, keeping the money to grow.

One real year: someone who owned one L&T share from 17 October 2025 to 19 October 2026 received the ₹38, before tax. Over the same year the price fell from ₹3839.40 to ₹3661.90, ₹177.50 lower. The year's return, the dividend plus the change in price, was −₹139.50, about −3.6%. The dividend was real cash; it made up about a fifth of the fall.

The price when you sell can stay low for years before it rises. Sun Pharma, the medicine maker, closed at ₹750.25 on NSE on 19 October 2016. At each October check for the next four years it was lower: ₹540.20, ₹609.95, ₹401.65 (46% down in 2019) and ₹483.65. The first October check above where it began was 2021's, at ₹827.35. On 19 October 2026 it closed at ₹1743.00: 132% higher over ten years, price only, yet about 9% below its October 2024 close. Nobody could know in 2019 which way the next years would go.

The worst case: owners are paid last. When a company fails, the people it owes are paid before its owners, because a loan is a promise and a share is not. DHFL, a large housing-finance company, could not pay what it owed and went through India's insolvency process. Under the rescue plan approved on 7 June 2021, nothing was left for the shares once its debts were paid: they were cancelled without payment and removed from the exchanges. Its shareholders lost what they paid, and owed nothing more.

Through good years and bad, an owner also keeps the vote from chapter 1, and using it takes a few minutes: owners vote ahead of the meeting, online, without going. In India every listed company must offer remote e-voting on every shareholders' resolution. You log in through your demat account at your broker, or at the depository (NSDL or CDSL), with a one-time password (OTP), and the depository sends a message confirming your vote. You are told ahead: the meeting's notice comes by email or post, and the depository alerts you at least 2 days before voting opens. The window stays open for at least three days and shuts at 5 pm the day before the meeting, and only shares held on the cut-off date, no earlier than seven days before the meeting, may vote. ITC's annual general meeting (AGM) of 23 July 2026 shows the calendar: cut-off 16 July, e-voting from 9 am on 19 July to 5 pm on 22 July. At that meeting its owners approved a final dividend of ₹8 a share. In the US the same vote is a proxy vote: the company or your broker sends a notice that the papers are online, and you vote on a website with a control number.

Time lets a growing business's results add up. It does not rescue a failing one, and nobody promises which kind a company will be.

On 19 October 2026 one Titan share cost ₹4424.20, as much as about 6.2 HDFC Bank shares at ₹712.00. But HDFC Bank, with about 1542 crore shares, was worth about ₹10.98 lakh crore (about $116 billion), about 2.8 times Titan's ₹3.93 lakh crore (about $41 billion) from its 88.8 crore shares.

The other beliefs this lesson has already broken, one line each: a share is not a piece of the shop (chapter 1); listed does not mean someone checked it is a good investment (chapter 2); the company gets your money only when it sells new shares (chapter 3); nobody sets the price, buyers and sellers agree it (chapter 4); your broker does not keep your shares, a depository records them in your name (chapter 5); and a share does not always come back if you hold it long enough (chapter 6).

You can now name every part of the market, say where your money goes, and explain what a price records. Next, the moment a share is born: how a company goes from its own office to a price on the exchange, in IPOs explained.