Trade

An order is only an intention. It says what a trader wants to buy or sell, and at what price. A trade is what happens once that intention meets an equal and opposite intention on the other side.

The workbook is precise about the moment this happens: execution of a trade occurs when a buyer and seller reach agreement on the terms and price, and the order is completed once it is matched on the exchange. From that instant, the order turns into a trade, and the exchange notifies the broker.

Once a trade exists, it is not a private matter between two traders any more. The clearing corporation steps in as counterparty to both sides, and the trade is only ever unwound through specific, tightly controlled procedures — never by simply deciding to call it off.

The workbook (Chapter 3, section 3.2.2.2 and 3.2.4) sets out what happens once a trade is executed and what can still be changed afterwards.

Notification. As soon as a trade is executed, a trade confirmation message becomes available on the broker's trading terminal, and the broker communicates it to the client — immediately or at end of day — officially through a contract note.

Client code modification. Exchanges may allow the client code on a non-institutional trade to be modified, but only to rectify a genuine error made when the order was placed, and this is checked through special inspections against strict, objective criteria. A penalty applies unless the broker proves the error was genuine, and the penalty is credited to the Investor Protection Fund. Two institutional codes may be modified between each other, penalty-free, only if both belong to schemes or sub-accounts managed by the same institution; between unrelated institutions, penalty applies. Proprietary trades can never be modified into client trades, or the reverse.

Custodial Participant code modification. This can be done on the trade day, during trading hours, within the time stipulated by the exchange and clearing corporation.

Trade annulment. A trading member can request that a trade be annulled within 30 minutes of execution; the exchange may, in exceptional cases and for recorded reasons, consider a request up to 60 minutes after execution. SEBI has set the annulment application fee at 5% of the trade value, subject to a minimum of Rs 1 lakh and a maximum of Rs 10 lakh, credited to the Investor Protection Fund.

A dealer at a broking firm intends to enter a sell order for Client A, but mistypes the client code and it is entered against Client B instead. The order matches: 1,000 shares of a listed company at Rs 640, a trade value of Rs 6,40,000.

The broker discovers the error the same evening and applies to the exchange for client code modification, showing the order-entry log as evidence of a genuine typing error. Because this is a non-institutional trade and the broker can demonstrate the mistake, the exchange permits the correction and, on the evidence provided, waives the penalty.

Had the broker instead wanted to cancel the trade outright — say, because the price was wildly off-market due to a system glitch — it would apply for trade annulment within 30 minutes of execution, and pay an annulment fee of 5% of Rs 6,40,000 = Rs 32,000, but since that falls below the Rs 1 lakh minimum, the broker pays the minimum fee of Rs 1 lakh instead.

Chapter 3 (Introduction to Securities Broking Operations, sections 3.2.2.2 to 3.2.4) is where a trade is defined and where the rules for modifying or annulling one live. Expect questions on the 30-minute (extendable to 60-minute) annulment window, the 5%/Rs 1 lakh/Rs 10 lakh fee structure, and which kinds of client code change attract a penalty and which do not.

• An order becomes a trade only on matching — an unmatched order carries no settlement obligation at all.
• Client code modification needs a genuine error and exchange approval; it is not a routine correction tool.
• Proprietary and client trades can never be swapped into each other, regardless of any claimed error.
• Trade annulment fee is 5% of trade value, floored at Rs 1 lakh and capped at Rs 10 lakh — a small trade still pays the Rs 1 lakh minimum.
• Shifting a trade to the broker's error account is not a client code modification, provided the error-account trade is later liquidated in the market rather than moved to another code.