Scaling in and out of trades

What scaling means

Scaling means building or closing a position in parts instead of all at once.

• Scaling in: you open a starting position and add more units later.
• Scaling out: you close part of an open position and keep the rest running. Closing part at a profit target is often called a partial take profit.

Scaling does not make a trade more likely to work. It changes your position size, average price and risk while the trade is open. Leveraged forex and CFD trading can lose money fast, and a scaled position can lose more than a single entry if you add size in the wrong direction.

Scaling in: adding to a position

There are two very different ways to scale in.

Adding to a position that is moving in your favour. You add size after price has moved your way, usually at a level you planned in advance. Your average price moves closer to the current price, so a smaller move against you brings the whole position back to break-even.

Adding to a losing position (averaging down). You buy more as price falls, or sell more as it rises, to improve your average price. The average looks better, but your total size and exposure grow while the market moves against you. This is how small losses often turn into large ones and how accounts reach a margin call. See avoiding margin calls.

Neither approach guarantees profit. The difference is whether added size follows confirmation of your idea or fights against it.

How the average price changes

Your average entry price is a weighted average: each entry price multiplied by its size, added together, then divided by the total size. Larger entries pull the average closer to their own price.

Use the calculator below to enter several buys at different prices and sizes. It shows the new average price and how far price must move for the whole position to break even.

When you read the result, keep in mind:

• Break-even is the average price plus costs. Spread, commission and overnight swap all push your real break-even further away. See swap fees.
• Each addition changes the picture. Recalculate after every entry, not only at the start.
• A closer average does not mean lower risk. Risk depends on size and stop distance, not on how good the average looks.

Recalculating risk on the whole position

Before adding, work out the risk of the combined position, not only the new part.

For each part, the risk is its size multiplied by the distance from its entry to the stop, multiplied by the value of a pip or point for that instrument. Add these together to get the total risk.

Common situations:

• You add and keep the original stop. The new part has a shorter or longer distance to the stop, but total risk always increases.
• You add and move the stop for the whole position. If the stop moves into profit beyond the average price, the total may be protected. If it moves further away, risk grows quickly.
• You set a total risk limit first. Then the size of each addition is whatever fits inside that limit. This is the more controlled approach.

Use position sizing and risk per trade to keep the total within your plan. If you hold related instruments, check correlation risk, because adding to several correlated positions works like adding to one.

Scaling out: partial take profit

Scaling out means closing part of the position at a planned level and leaving the rest open.

What it does:

• Locks in part of the gain. The closed part is realised profit or loss.
• Reduces open exposure. The remaining position is smaller, so the same adverse move costs less.
• Lets you hold the rest with less pressure. Many traders move the stop on the remaining part to the average entry price after a partial close. Gaps and slippage can still produce a loss. See gap and weekend risk.

What it costs:

• Smaller average wins. If the trade runs much further, the closed part no longer participates.
• A changed risk-reward profile. Your realised reward relative to risk is a blend of the parts. See risk-reward ratio and trading expectancy.
• Extra trading costs. Each partial close is a separate execution.

On MetaTrader you can usually close part of a position by entering a smaller volume when closing. The minimum lot and volume step depend on the instrument and account, so check the current conditions in your broker's personal area before planning partial closes.

Building a scaling plan

Decide before you enter, not during the trade:

1. The total risk for the whole idea.
2. The levels where you would add, and the size of each addition.
3. Where the stop sits after each addition.
4. The levels for partial take profit and the share closed at each.
5. What cancels the plan, such as a news release. See trading news risks.

Record every part of the trade in a trading journal so you can see later whether scaling helped or hurt your results. Practising on a demo account first lets you see the mechanics without risking money.

Frequent questions

Is scaling in the same as averaging down?

No. Averaging down is one type of scaling in, where you add to a losing position. Scaling in can also mean adding to a position that is already moving in your favour.

Does a better average price reduce my risk?

Not by itself. Risk depends on total size, stop distance and pip value. A better average with a larger size can mean more money at risk.

What is a partial take profit?

Closing part of an open position at a planned target while keeping the rest open. It realises part of the result and reduces open exposure.

Should I move my stop to break-even after scaling out?

Some traders do, to protect the remaining part. It reduces the chance of a loss on that part but can also close it early on normal price swings. Gaps can still cause a loss.

Where can I calculate my new average price?

Use the average price calculator on this page, and see trading calculators for position size and risk tools.