Stock Market BasicsLesson 18 of 100About 5 minutes

Stop-Loss Order

A stop-loss order uses a trigger price to activate a sell or buy order. It can be useful for risk control, but the final execution price is not guaranteed.

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Introduction

An order that starts at a trigger price

A stop-loss order stays inactive until the market reaches a price you choose, called the trigger price. Once triggered, it activates the order type selected in your broker's app. Many investors use a stop-loss sell order to try and cap a loss on shares they already own.

The short answer

Trigger price reached → the order activates → it may execute according to the selected order type and available market prices.

What is a trigger price?

The price that activates the order

The trigger and the eventual trade price are not necessarily the same.

  1. 1

    Before the trigger

    The stop order waits according to its validity and the broker/exchange rules.

  2. 2

    Trigger condition is met

    The order activates as a market order or limit order, depending on the type selected.

  3. 3

    The order is processed

    It may execute at available prices, be partly filled, or remain unfilled, depending on the order type and market.

₹1,000 example

Estimate a possible loss at the trigger

This simplified example assumes you bought shares for ₹100 each and set a stop trigger below that price.

Estimated difference if sold at the trigger price

₹100

(₹100 − ₹90) × 10 shares

With 10 shares bought at ₹100 and a trigger at ₹90, the difference at the trigger is ₹100. This is only an estimate assuming execution at exactly ₹90; the actual execution price and loss may be different, and charges are not included.

Market or limit after trigger?

Know what your broker's order type does

Availability, names, and rules can vary by broker, exchange, and product.

Stop-loss market

After the trigger, a market order seeks execution at available prices. It may execute below a sell trigger if prices move quickly or gap down.

Stop-loss limit

After the trigger, a limit order is placed. It respects its price boundary but may not execute if the market moves past that price.

What to keep in mind

A stop-loss cannot remove every risk

  • The trigger price activates an order; it is not necessarily the price of the completed trade.
  • A gap or fast price move can lead to execution at a different price or to no execution.
  • A stop-loss limit order can remain unfilled if the market moves beyond its limit.
  • The order may expire or be cancelled according to its validity and broker or exchange rules.
  • Check the exact order type, trigger conditions, validity, and charges in your broker's app.

Key points

What to remember

  • A trigger price activates the stop-loss order.
  • A trigger is not a guaranteed execution price.
  • A stop-loss market order seeks execution at available prices.
  • A stop-loss limit order sets a price boundary but may not execute.
  • Gaps and fast market moves can affect execution.
  • A stop-loss may help manage risk but cannot remove it.

This lesson is for education only, not personalized financial, tax, or investment advice. Investments in securities are subject to market risks.

Test yourself

5-question quiz

Choose one answer for each question, then check your score.

  1. 1.What is the trigger price in a stop-loss order?
  2. 2.Does a stop-loss order guarantee that you will sell at the trigger price?
  3. 3.In a common stop-loss sell order for shares you own, what may happen when the trigger is reached?
  4. 4.What could happen if the market price gaps below your stop trigger?
  5. 5.How does a stop-loss limit order differ from a stop-loss market order?

Answer all five questions to see your score.