Trading Risk Management9-minute read

What Is a Stop Loss?

A stop loss is an order designed to close a trade when the market reaches a predefined price. This guide explains how stop-loss orders work, how to choose a logical stop level, how stop distance affects position size, and why execution may differ during fast market conditions.

Clear explanationsRisk examplesPractical placement rules

Long trade example

EUR / USD

Risk Protection

Entry price

1.1000

BUY ENTRY

Stop-loss price

1.0950

STOP LOSS

Stop distance

50 pips

With a pip value of $2

Estimated risk ≈ $100

Stop-Loss Meaning

How Does a Stop Loss Limit the Risk on a Trade?

A stop loss is an order placed at a predefined price to close a position when the market moves against the trader. Its main purpose is to define an exit point before an uncontrolled loss becomes significantly larger.

On a long trade, the stop is normally placed below the entry price. On a short trade, it is normally placed above the entry. The correct level should be based on market structure, volatility and the point at which the original trade idea is no longer valid.

In simple terms, a stop loss defines the price at which you accept that the trade setup has failed and exit before the potential loss grows beyond your risk plan.

Level

Stop Price

The price that triggers the instruction to close the position.

Distance

Stop Distance

The number of pips between the entry and stop-loss price.

Risk

Money at Risk

The estimated loss based on stop distance and pip value.

Order Execution

How Does a Stop-Loss Order Work When Price Reaches It?

Once the stop-loss level has been added to an open position, the trading platform monitors the market price. When the stop level is reached, an instruction is triggered to close the trade. In normal conditions, execution may occur close to the selected price, but the final price can differ during rapid movements or market gaps.

Estimated Loss = Stop Distance × Pip Value

Stop distance

50

PIPS

Pip value

$2

PER PIP

Estimated loss

$100

ESTIMATED RISK

How the example works

1

A long position is opened with a stop placed 50 pips below the entry.

2

Based on the selected lot size, each pip is worth approximately $2.

3

Multiplying 50 pips by $2 produces an estimated risk of $100.

💡

A stop loss does not always guarantee the exact price

During major news releases, thin liquidity or a market gap, the order may be filled at the next available price rather than the precise stop level. This difference is called slippage and should be considered when planning risk.

Stop-Loss Example

How Do Stop Distance, Lot Size and Account Risk Work Together?

Suppose a trading account contains $10,000 and the trader decides to risk no more than 1% on a single trade. The maximum planned loss is therefore $100.

Account balance

$10,000

Risk per trade

1%

Stop distance

50 pips

Maximum loss

$100

From account risk to position size

Risk amount

$100

1% OF ACCOUNT

Stop distance

50 pips

STOP DISTANCE

Required pip value

$2

$100 ÷ 50

⚠️

The stop level should determine the lot size

Identify the technically valid stop level first, then calculate the lot size that keeps the potential loss within your limit. Do not place an unrealistically tight stop simply to justify opening a larger position.

Stop-Loss Order Types

What Are the Main Types of Stop-Loss Orders?

Stop-loss orders do not all work in the same way. Traders can use a fixed stop at a specific price, a trailing stop that follows a profitable move, or a guaranteed stop offered by certain brokers under specific conditions.

Fixed Stop Loss

Most commonly used

Fixed Stop Loss

+

A fixed stop is placed at a specific price level and remains there unless the trader manually changes it or closes the position.

  • Simple to understand and widely used.
  • Defines the planned loss before entering the trade.
  • Does not move automatically when price changes.

Trailing Stop Loss

Profit protection

Trailing Stop

+

A trailing stop follows price when a trade moves into profit while maintaining a predefined distance from the current market price.

  • Can help protect part of an open profit.
  • Moves automatically as price advances.
  • May close a trade during short-term volatility.

Guaranteed Stop Loss

Additional protection

Guaranteed Stop

+

A guaranteed stop is designed to close a position at the requested level even during a market gap, subject to the broker's terms and availability.

  • Reduces the impact of price gaps and slippage.
  • May not be available on every instrument.
  • Can involve an additional premium or fee.

Stop-Loss Placement

Where Should You Place a Stop Loss?

The best stop-loss level is not simply the closest possible price to your entry. It should be placed where the original trade idea becomes invalid. Once that technical level is identified, the position size can be adjusted so the potential loss remains within the chosen risk limit.

The key question before placing a stop

Do not begin by asking how many pips away the stop should be. Start by asking which price level would prove the trade setup wrong. Measure the distance to that level, then calculate the appropriate lot size.

📉

Beyond Support or Resistance

+

For a long position, a stop may be placed below a meaningful support level. For a short position, it may be placed above resistance, with enough room for normal price movement.

📊

Based on Market Volatility

+

Volatility measures such as the Average True Range can help estimate normal price movement and reduce the chance of setting the stop too close.

🕯️

Beyond a Swing High or Low

+

Some traders place stops beyond a recent swing low or swing high because a break of that level may invalidate the original trade setup.

🛡️

Using a Defined Risk Amount

+

After identifying a technically valid stop level, the lot size can be adjusted so the potential loss remains within the trader's maximum risk limit.

The Correct Stop-Loss Decision Process

Identify invalidation

Support or swing low

TECHNICAL LEVEL

Measure stop distance

For example, 40 pips

STOP DISTANCE

Adjust lot size

Based on risk

POSITION SIZE

💡

Allow room for normal market volatility

Placing a stop exactly on a support or resistance level can make it vulnerable to a brief test of that price. Some traders add a volatility-based buffer that reflects the instrument and timeframe.

Practical rules for setting a stop loss

Place the stop where the original trade setup becomes invalid.
Check market volatility before finalising the distance.
Calculate the possible monetary loss before entering.
Reduce lot size when a wider stop is technically required.

Trade Management

What Are the Most Common Stop-Loss Mistakes?

Simply adding a stop-loss order does not automatically create good risk management. Poor placement, inconsistent sizing or emotional changes during the trade can make the protection far less effective.

01

Setting the Stop Too Close

+

Normal market noise may close the position before the expected price move develops.

02

Moving the Stop Further Away

+

Widening the stop after the trade moves against you increases the loss and breaks the original risk plan.

03

Using the Same Distance Every Time

+

Volatility varies across instruments, sessions and market conditions, so one fixed distance will not suit every trade.

04

Choosing Lot Size Before the Stop

+

The stop level should be identified first, followed by a lot-size calculation based on the chosen risk amount.

⚠️

Do not widen the stop simply to avoid taking a loss

If price reaches the level that invalidates the original setup, moving the stop further away increases the loss without improving the trade. Any adjustment should follow a predefined rule rather than an emotional reaction.

Trade management versus changing the plan

Moving a stop to reduce risk or protect profit according to predefined conditions is trade management. Moving it further away to allow a larger loss after price moves against you is a change to the original risk plan.

Trader Questions

Stop-Loss Order Frequently Asked Questions

What is a stop loss in trading?+
A stop loss is an order that instructs the trading platform to close a position when the market reaches a specified price. Its purpose is to limit the potential loss when price moves against the trade.
How does a stop-loss order work?+
When the market reaches the stop price, the instruction is triggered and the position is submitted for closure. The final execution price may be the requested level or the next available price, depending on market conditions and the broker's execution model.
Where should I place a stop loss?+
A stop should normally be placed at a level where the original trade idea becomes invalid, such as below meaningful support for a long position or above resistance for a short position.
How wide should my stop loss be?+
There is no universal stop-loss distance. It should reflect the market structure, instrument volatility, timeframe and trade setup. The lot size should then be adjusted to keep the monetary risk within your limit.
Does a stop loss guarantee the execution price?+
Not always. During normal conditions, execution may occur close to the selected price. During fast markets or price gaps, the position may close at a different available price because of slippage.
What is the difference between a fixed stop and a trailing stop?+
A fixed stop remains at a selected price unless it is manually changed. A trailing stop follows price when the position moves into profit and stops moving when the market reverses.
Can I trade without a stop loss?+
A platform may allow a position to be opened without a stop, but doing so leaves the potential loss undefined and can expose the account to substantial risk during sharp moves, news events or market gaps.
Continue Learning

Trading Concepts Related to Stop Loss

Understanding take profit, lot size and leverage can help you build a more structured exit plan and control the risk on each trade.

Your Next Step

Define Your Stop Loss Before Entering the Trade

Choose the stop level from market structure and volatility, then calculate the lot size that keeps the potential loss within your risk-management plan.