ARMFTypes of risk in trading
Types of risk in trading are usually given as a list, but the practical point is a different one: the stop-loss covers only one of them — the market risk. It does not see the other five sources of loss at all: they materialise past the chart, through execution, the counterparty, the infrastructure and the trader's own decisions. We look at each of them and at what limits it in practice.
Six sources of loss: market risk, liquidity risk and the rest
The classification is not an academic one: it is built around where exactly the loss arises and what action limits it.
Market risk
The price goes against the position. The only risk that is directly limited by the stop-loss and the size of the position — and that is exactly why it is also the most discussed one.
It is limited fully only in theory: on a gap over the weekend the order fires at the first available quote, and the loss comes out larger than calculated.
Liquidity risk
The position cannot be closed at the expected price: the spread widens, the depth of the book falls. On major pairs it is noticeable in a thin market and in the first seconds after macro data.
On exotic pairs and in hours of low activity the spread can grow several times over, and a short stop will be taken out by the spread itself.
Credit risk
The risk that the other side will not meet its obligations: the broker, the bank, the payment system. In forex it materialises as a delay in withdrawal or a loss of funds when a broker leaves the market.
Regulation, segregated accounts and compensation schemes reduce the risk but do not zero it: the terms of protection depend on the jurisdiction.
Operational risk
A lost connection, a frozen terminal, a volume typed in wrongly, a power cut with a position open. A human error counts as operational here too.
The main protection is simple: the stop order is placed on the broker's server rather than kept in the terminal — then a lost connection does not cancel it.
Psychological risk
A stop moved away, an entry outside the plan, a lot increased after a chain of losses. Formally it is not a market loss, but in size it is often larger than all the others put together.
The only risk that grows from being aware of it: knowing about a mistake does not stop you making it, but a hard daily limit does.
Systemic risk
Events that affect the whole market: a change of monetary regime, the removal of a currency peg, a liquidity crisis. Diversification within one class of assets does not save you from it.
The removal of the franc peg by the Swiss National Bank on 15 January 2015 is a textbook example: the move in the CHF was so sharp that some accounts went into a negative balance.
Which of them the stop actually covers
A stop-loss limits market risk and only it — and not even fully. The other five require different tools, and almost none of them has anything to do with the chart.
| Type of risk | The main tool | What is left |
|---|---|---|
| Market | A stop order and the volume calculation | A gap through the stop level |
| Liquidity | The choice of trading hours and instrument | A widening spread on news |
| Credit | The choice of broker, withdrawing the surplus from the account | Jurisdictional limits |
| Operational | Server-side orders, checking what you type, a backup channel | A failure at the broker |
| Psychological | Written rules, a daily limit, a journal | Your own decision to break them |
| Systemic | A moderate exposure, a buffer of free funds | It materialises in full |
A negative balance is not a theory. On an extreme move the loss can exceed the deposit: the position is closed at the first available price, not at the stop-out level. Negative balance protection is not offered by every broker and does not work in every jurisdiction — that condition is checked in the agreement before an account is opened, not after the event.
A forex account check against six types of risk
The list below is not theory but the questions a trader should have a ready answer to before opening a position. The ticks are stored in the browser and are not sent anywhere.
The six items correspond to the six types of risk in the same order. Five of them are covered by preparation before the trade, and only the first by an action during it.
Frequently asked questions
Which risk in trading is the biggest?
By frequency — market risk, by the size of a single loss — systemic risk, and by the total sum of losses for a retail trader it is usually the psychological one: a broken rule costs more than an unsuccessful trade taken by the rules. The exact answer for a particular account comes from the trading journal, if the reason for the exit is marked in it.
How do I protect myself from a weekend gap?
Fully — only by not holding a position over the weekend. Partly it helps to use a smaller volume for carried positions and a guaranteed stop at brokers that offer one: it is executed at the price you named but costs an extra commission or a wider spread.
What is liquidity risk in forex if the market is round-the-clock?
Being round-the-clock is not the same as being uniform. While only Asia is trading, the quote on European crosses is wider and the depth of the book is smaller; in the first seconds after macro statistics are published the quotes can move in jumps. A short stop at such moments is taken out not by the move but by the widening of the spread itself.
Does an error in the lot size count as a risk?
Yes, it is an operational risk, and one of the most galling: an extra zero in the volume turns a planned 1 % into 10 %. It is cured by checking the volume before sending the order and by a calculator that counts the lot — not by typing it in «by eye» out of habit.
Which risks exist only in forex and not on other markets?
Three of them. The overnight charge for carrying a position, which eats part of the target on a long trade. The spread drifting apart in the hours when only Asia is trading. And the jumps after central bank decisions — like the one that happened to the franc in January 2015.
What is liquidity risk on major pairs?
On EUR/USD and other majors it shows up not as an absence of a counterparty but as a widening of the spread: in the Asian hours and in the first seconds after macro data the price moves in jumps and the order is filled worse. For a stop shorter than 20 pips that already matters.
How do I assess the operational risk of my terminal?
Check three things: whether stop orders are stored on the broker's server, whether there is a backup connection and whether the platform can show the volume in the account currency before the order is sent. The first removes the risk of a lost connection, the third the risk of an error in the lot.
Does the choice of broker count as a risk?
Yes, it is credit risk: a delay in withdrawal, a change of terms or the company leaving the market have nothing to do with the movement of the price and are not covered by a stop. It is limited by choosing a regulated venue and by keeping only trading capital on the account rather than all your savings.
Can you insure against a weekend gap?
Fully — only by closing positions before the weekend. Partly it helps to reduce the volume for carried trades and to use a guaranteed stop where the broker offers one: it is executed at the price you named but costs an extra fee or a wider spread.
Which risk do beginners most often underestimate?
The psychological one — and it is visible in the journal: the loss from trades outside the plan usually exceeds the loss from trades taken by the system. What helps is not motivation but mechanical limits: a daily limit, a stop placed in advance and an entry checklist.
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