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Overtrading and chasing losses

Risk and the mind: how accounts survive3 min read
What you learn in 3 minutesThis lesson shows how two habits — trading more often than your plan allows, and increasing your size to win back a loss — turn one bad trade into a bad week. On EUR/USD around 1.0850, one pip on one standard lot is worth 10 units of the quote currency, so 20 pips is 200 units before any conversion to naira. We work through a day of 30 trades and show what the costs alone take out of the result.

You learn to count the cost of activity before you count the profit. The figures are worked in naira, with the exchange rate stated as an assumption because it changes.

Plan3Actual12
A schematic diagram showing a day of 30 trades: each trade adds a pip cost, and the bars show how the total cost grows even when the trading result is flat.

What an extra trade costs before the market moves

A trade is not free the moment it opens. The spread is charged at entry, and it is charged again on every trade you add. On EUR/USD around 1.0850, one pip on one standard lot is worth 10 units of the quote currency. At 0.10 lots, one pip is worth 1 unit. A spread of 1.0 pip therefore costs 1 unit per trade at that size.

Convert that to naira and the cost becomes visible. If the rate is ₦1,600 per unit, one trade at 0.10 lots costs ₦1,600 in spread. Ten trades cost ₦16,000. Thirty trades cost ₦48,000. None of those trades has to lose money on price for the bill to exist. The bill is the spread, multiplied by the number of times you enter.

This is why activity has a price of its own. A plan of 10 trades is not only a limit on how long you sit at the screen. It is a limit on a known cost. When you pass 10 trades, you are not adding a chance to recover. You are adding another ₦1,600 to a total that already exists. The market has to move in your favour just to bring you back to where you started.

Why raising size after a loss multiplies the same bill

The second pattern is to increase the lot size after a loss. The spread per pip does not stay still when size changes. At 0.10 lots, one pip costs 1 unit. At 0.50 lots, one pip costs 5 units. The same 1.0 pip spread that cost ₦1,600 now costs ₦8,000 on a single entry.

Suppose a loss of ₦16,000 has been taken on a day. A common reaction is to double the size to win it back in fewer trades. If the spread is 1.0 pip and the size is now 0.20 lots, each trade costs 2 units, or ₦3,200. Five trades at that size cost ₦16,000 in spread alone, before any price movement. The recovery attempt has added the same cost again.

The arithmetic is unforgiving. A larger position needs a smaller favourable move to recover a given amount, but it also pays a larger spread on every attempt. If the attempts do not work, the loss grows faster than the position that caused it. The plan that limited size existed to stop this loop. Raising size after a loss breaks the limit at the exact moment it matters most.

What a maximum loss in naira does that a stop loss does not

A stop loss on a single trade limits one position. A maximum loss in naira limits the day. They are not the same tool. A stop loss can be hit ten times in a row, each time within its own limit, and the day can still end far below where it started. The daily figure is the one that counts across all trades.

Set the daily maximum before the first trade. If the figure is ₦30,000, then the day ends when total losses reach ₦30,000, whether that takes one trade or twenty. The number is in naira, so it does not move when the exchange rate moves. It is a fixed line you can check at any moment.

The daily maximum also covers the costs that a stop loss does not see. Spread, commission and any overnight financing all reduce the account. A day that ends flat on price can still end down on cost. Counting the naira total catches both. When the limit is reached, the next trade is not a recovery plan. It is a larger bill against a smaller account.

How the two patterns feed each other

Overtrading and chasing losses are usually described as separate habits. In practice they arrive together. A loss makes the day feel unfinished, so more trades are taken. More trades add spread. The added spread makes the day worse, which makes the next size increase feel justified.

The loop has a shape. First, a loss. Second, an extra trade that the plan did not allow. Third, a size increase to make the extra trade count. Fourth, a larger spread bill. Fifth, a larger loss. Each step is small. The total is not. A single bad trade becomes a bad week because the response to the first loss is what sets the cost of the rest.

Breaking the loop does not require a better forecast. It requires two numbers written down before trading starts: a maximum number of trades and a maximum loss in naira. When either is reached, the day is over. The next session starts with the same two numbers, not with the debt from the last one.

Work through a day that breaks both limits

Start with a plan of 10 trades and a maximum loss of ₦30,000. The instrument is EUR/USD around 1.0850, the spread is 1.0 pip, and the size is 0.10 lots. One pip at 0.10 lots is 1 unit. At ₦1,600 per unit, that is ₦1,600 per trade in spread.

After 10 trades, the spread cost is 10 x ₦1,600, which is ₦16,000. Suppose the gross result on price is ₦0. The day is flat on price but down ₦16,000 on cost. The plan said 10 trades, so the plan has been followed so far.

Now take 10 more trades at the same size. The extra spread is another ₦16,000. Total spread is ₦32,000. The plan allowed 10 trades and a maximum loss of ₦30,000. Both have been broken: 20 trades instead of 10, and ₦32,000 instead of ₦30,000.

If the size had been raised to 0.20 lots for the second set, each pip would cost 2 units, or ₦3,200. Ten extra trades would cost ₦32,000 in spread alone. The total for the day would be ₦48,000. The recovery attempt would have added more cost than the original plan allowed for the whole day.

The figures assume a fixed rate of ₦1,600 per unit. The rate changes, so the naira totals change with it. The broker may round the pip value, charge a commission on top of the spread, or quote a wider spread at busy times. Swap or financing charges can also apply if a position is held overnight. All of these change the final figure.

The point of the walkthrough is not the exact naira amount. It is that the cost is countable before the trades are taken. A maximum number of trades and a maximum loss in naira turn an open-ended day into a day with an end.

30 trades in one day: what the costs take

StepAmountNote
Instrument and priceEUR/USD around 1.0850The example price used for the whole day.
Pip value on one standard lot10 units of the quote currency100,000 x 0.0001 = 10.
Spread cost per trade1.0 pipA common spread on EUR/USD; it varies between brokers and by account type.
Spread cost for 30 trades30 pips30 x 1.0 pip.
Size used0.10 lotsOne tenth of a standard lot.
Cost in quote currency30 units30 pips x 10 units per pip x 0.10 lots = 30 units.
Assumed exchange rate₦1,600 per unitAn assumption for this example; the real rate moves and varies.
Total cost in naira₦48,00030 units x ₦1,600 = ₦48,000.
Gross result before costs₦0The 30 trades ended flat before costs.
Net result after costs-₦48,000₦0 minus ₦48,000.

The broker may round the pip value, charge a commission on top of the spread, or quote a wider spread at busy times. Swap or financing charges can also apply if a position is held overnight. All of these change the final figure.

Doing it once, step by step

Before the next session, write two numbers on paper: the most trades you will take and the most naira you will lose. Then follow the order below during the day.

  1. 01

    Write the trade limit and the naira limit

    Choose a maximum number of trades for the day. Choose a maximum loss in naira, and write it next to the trade limit. Both numbers are fixed before the first trade. Neither number changes because of how the day is going.

  2. 02

    Work out the spread cost per trade

    Take the spread in pips and the lot size you intend to use. On EUR/USD, one pip on one standard lot is 10 units of the quote currency. Multiply by the lot size to get units per pip. Multiply by your naira rate to get the cost of one trade.

  3. 03

    Multiply by the trade limit

    Multiply the cost of one trade by the maximum number of trades. This is the spread bill if every trade is taken. Compare it with the naira limit. If the spread bill alone is close to the limit, the trade limit is too high.

  4. 04

    Stop when either number is reached

    When the trade count reaches the limit, stop for the day. When the loss reaches the naira limit, stop for the day. Whichever comes first ends the session. Do not add trades to bring the day back to flat.

  5. 05

    Keep the size the same all day

    Do not raise the lot size after a loss. A larger size pays a larger spread on every attempt. The same 1.0 pip spread costs five times as much at 0.50 lots as at 0.10 lots. Keep the size fixed and let the limits do the work.

  6. 06

    Record the day and restart clean

    Write down the number of trades, the spread cost and the final naira result. The next session starts with the same two limits, not with the previous day's loss. The record shows whether the limits were followed, which is the only part you control.

The mistake most people make here

The common mistake is to treat a flat day as harmless and then trade again to make back the spread. The second mistake is to raise the size after a loss, so the same 30 pips of cost is charged on a larger position. Instead, set a maximum number of trades for the day and a maximum loss in naira before you start, and stop when either is reached. If you have already hit the limit, the next trade is not a recovery plan; it is a bigger bill.

Check yourself

If you take 20 trades in a day on EUR/USD at 1.0 pip spread and 0.10 lots, what is the spread cost in naira at ₦1,600 per unit?

20 pips x 10 units per pip x 0.10 lots = 20 units. 20 x ₦1,600 = ₦32,000.

You start the day with a plan of 10 trades and a maximum loss of ₦30,000. After 10 trades you have paid ₦16,000 in spread and your gross result is ₦0. You take 10 more trades at the same size. What is the spread cost now, and have you broken your plan?

The extra 10 trades cost 10 pips x 10 units x 0.10 lots = 10 units, which is ₦16,000. Total spread is ₦32,000. You have broken the plan on both counts: you traded more than 10 times, and the total cost is above ₦30,000.

Questions that come up next

How much does one extra trade cost at 0.10 lots on EUR/USD?

At 0.10 lots, one pip is worth 1 unit of the quote currency. A spread of 1.0 pip therefore costs 1 unit per entry. At an assumed rate of ₦1,600 per unit, that is ₦1,600 for the trade. The cost is charged when the trade opens, before the price has moved either way.

Why does a bigger position cost more before the price moves?

The spread is charged per pip, and the pip value rises with the lot size. At 0.10 lots one pip is 1 unit. At 0.50 lots one pip is 5 units. At ₦1,600 per unit, the same 1.0 pip spread goes from ₦1,600 to ₦8,000 on one entry.

Does a stop loss keep the day inside my maximum loss?

No. A stop loss limits one position, not the day. It can be hit several times in a row, each time inside its own limit, while the day's total keeps rising. A maximum loss in naira is a separate limit that counts every closed trade together. You need both, and you stop when either is reached.

If I raise size after a loss, how many trades does it take to add the same cost again?

It depends on the size you move to. If the loss was ₦16,000 and you double to 0.20 lots, each entry costs 2 units, or ₦3,200 at ₦1,600 per unit. Five entries at that size add ₦16,000 in spread alone. The recovery attempt has rebuilt the same bill before any price movement is counted.

Do all brokers charge the same spread and commission?

No. The spread varies between brokers and between accounts at the same broker. Some brokers add a commission on top of the spread. Some round the pip value. Spreads can also widen at busy times. Swap or financing charges may apply if a position is held overnight. Use your own account's figures.

How do I set a maximum number of trades before the session starts?

Write the number down before you open the platform, and write the naira cost of that number of trades beside it. Then write the maximum loss in naira for the day. When either limit is reached, the session is over. The next trade is not a recovery plan; it is a bigger bill.

The words used on this page

Spread
The gap between the price at which you can buy and the price at which you can sell. It is charged when a trade opens. On EUR/USD it is often quoted in pips.
Pip
A small unit used to measure movement in a currency pair. On EUR/USD around 1.0850, one pip is 0.0001. Its value in money depends on the lot size.
Lot
A standard measure of position size. One standard lot is much larger than 0.10 lots. The pip value rises in step with the lot size, so the spread cost rises too.
Maximum loss
A naira figure set before trading starts that ends the session when reached. It counts every closed trade together, unlike a stop loss, which limits one position only.
Overtrading
Taking more trades than the plan allows. Each extra trade adds a known spread cost, so the market must move further in your favour just to return to the starting point.
Chasing losses
Raising the position size after a loss to win the money back in fewer trades. It multiplies the spread on every attempt and breaks the size limit at the moment it matters most.

What to take away

  • Every trade pays the spread at entry, so activity has a cost before the price moves.
  • Raising size after a loss multiplies that same cost on each attempt.
  • A stop loss limits one trade; a maximum loss in naira limits the day.
  • Set a maximum number of trades and a maximum loss before you start, and stop when either is reached.
Next in Risk and the mind: how accounts surviveDiscipline: the rules you do not break
Trading forex and CFDs carries a high risk of losing money. Most retail accounts lose. Nothing here is a recommendation to trade or a forecast of any result.Amarayour course guide