It is 11:05 on a Wednesday. A large offer has been sitting on a midcap for twenty minutes, absorbing everything that comes at it, and you go looking for the column that tells you who is behind it — the way the material you learned from did. There is no such column. Your screen shows price, quantity and a number of orders, and no identity anywhere in it. Out of habit you cross-check the day’s volume against the exchange website, and that does not agree with your app either. Nothing is broken. You are reading a market built on a different set of assumptions from the one your vocabulary came from.
A town has two bus stands and both run buses to the same city. The fares track each other closely, because anybody quoting a rupee more loses the passenger to the other stand. What does not track is the crowd. Stand one might carry nine passengers in ten. Count the queue at stand two and call it the town’s demand for travel, and you will be wrong by an order of magnitude while being right about the fare.
The NSE and the BSE are the two stands. Arbitrage keeps their prices within a whisker of each other, so the price you read is trustworthy from either. Turnover is a different matter entirely, and no exchange publishes a combined figure — anything you see labelled as a total has been added up by a data vendor rather than printed by the market.
What the imported vocabulary assumes
A great deal of tape-reading material rests on features of United States market structure that were built by a specific set of rules there. It is worth setting them out plainly, because each one has a different Indian answer, and confusion about which is which is the reason imported techniques so often land badly here.
| What the American material assumes | What actually exists in India |
|---|---|
| A consolidated tape — every trade in a security, across every venue, printed to one combined feed | Each exchange broadcasts its own trades and its own book. There is no combined national print, so your app is showing you one venue unless it has explicitly stitched two together |
| A protected best bid and offer — a rule that broadly forbids executing at a worse price than another venue’s displayed quote | No equivalent rule. Where an order goes between the NSE and the BSE is decided by your broker’s routing and best-execution policy, which is a document you can read and most people never have |
| Market participant identifiers on the depth ladder — you can see which firm is quoting | The order book is anonymous by design. You see quantity and the number of orders behind it, never who placed them. Identity surfaces only afterwards, in the bulk and block deal disclosures |
| Substantial off-exchange execution — dark pools and broker internalisation taking a large share of volume | Cash equity trading is overwhelmingly on-exchange and in the visible order book. Negotiated large trades go through the exchange block-deal window and are published the same day |
| Payment for order flow — retail orders routed to wholesalers who pay for them | Not part of the Indian arrangement. Your order goes to the exchange order book, and the broker is paid by brokerage on your contract note |
| Designated market makers with quoting obligations in ordinary shares | No obligated quoting in mainboard cash equities. Formal market making exists in specific places — the SME platform, exchange-traded funds, some derivative contracts — and not in the midcap you are watching |
One price, two turnover figures
Because arbitrage between the two exchanges is fast, cheap and continuous, the price is essentially the same on both. Turnover is not, and it is not close. Most mainboard names concentrate the great majority of their cash turnover on one exchange, and a minority — often older listings and some smaller companies — do the opposite. If your data feed is pointed at the exchange where the stock barely trades, every volume-based read you own is being computed on a fragment.
The columns you do get, and what they are worth
Anonymity is not a gap in Indian market data; it is a deliberate design decision, taken because a visible broker identity leaks the intentions of whoever is behind it. What replaces the identity column is a count. At each of the five price levels most terminals show, you are given both the aggregate quantity and the number of orders making it up, and those two numbers together carry more than either alone.
- Average order of 6,000 — a size retail rarely places in a midcap
- Three decisions, which can be withdrawn by three cancellations
- More likely one participant working a position, or an algorithm slicing a parent order
- If it lifts, it lifts all at once and the level empties in a second
- Average order of 75 — the signature of a crowd, not a participant
- Two hundred and forty separate decisions behind the same number
- Typically retail limit orders resting at a round number or a familiar level
- It tends to erode rather than vanish, and it reforms after it is taken
You read that a stock traded 4.2 lakh shares today, and the exchange website shows 11.6 lakh on the other exchange. What follows?
Shehar mein do bus adde hain, dono ki gaadi usi sheher jaati hai, kiraya lagbhag ek. Par bheed barabar nahi — das mein nau sawaari ek hi adde se chadhti hai. Aap doosre adde pe khade ho kar line ginn rahe ho aur keh rahe ho "aaj to bheed hi nahi thi". India mein NSE aur BSE ka koi ek joda hua board nahi hai — bhaav dono jagah ek jaisa, volume bilkul nahi. Pehle dekho aapka app kis adde pe khada hai.
- India has no consolidated tape: each exchange broadcasts only its own trades and its own book.
- There is no protected national quote — routing between exchanges is your broker’s policy, not a rule.
- The order book is anonymous by design, so no participant identity is ever visible on the ladder.
- Cash equity trading is overwhelmingly on-exchange, with no dark pools or payment for order flow.
- The number-of-orders column is the closest thing you get to knowing what kind of participant is there.
Mark it done to track your progress through the curriculum.
Common questions
Short, direct answers to what people ask about this topic.
- does india have a consolidated tape
- No. India has no consolidated tape: each exchange broadcasts only its own trades and its own order book, and there is no combined national print of every trade in a security. Anything you see labelled as a stock’s total volume across venues has been added up by a data vendor rather than published by the market. Prices on the NSE and the BSE stay within a whisker of each other because arbitrage is fast and continuous, but turnover on the two can differ several times over.
- a single feed carrying every trade in a security across all venues is called a
- A consolidated tape. It is a feature of United States market structure rather than an Indian one — here the NSE and the BSE each disseminate their own trades and their own depth, so the volume on your screen belongs to whichever exchange your data feed is pointed at, not to the market as a whole.
- why does my app show different volume for a stock than the exchange website
- Because each Indian exchange reports only its own turnover, so a stock listed on both has two separate volume figures for the same session and your app may be showing the other venue — or a vendor-combined total that neither exchange actually prints. Most mainboard names concentrate the great majority of their cash turnover on one exchange. The price will still agree closely across both, because arbitrage keeps the quotes together even when participation is nowhere near equal.
- can you see which broker placed an order in the nse order book
- No — the Indian order book is anonymous by design. Each price level shows the aggregate quantity and the number of orders behind it, never the identity of the trading member or client who placed them, because a visible broker identity would leak the intentions of whoever is behind it. Identity surfaces afterwards instead, in the bulk and block deal disclosures the exchanges publish the same evening.
- is payment for order flow a thing in india
- Payment for order flow is not part of Indian market structure. Your order goes to the exchange order book rather than to a wholesaler who has paid for the flow, and the broker is paid through the brokerage that appears on your contract note. Cash equity trading here is also overwhelmingly on-exchange and in the visible book, with negotiated large trades going through the exchange block-deal window and being published the same day.