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Weekend Gaps: Why Your Stop Loss Filled Worse on Monday
When the market reopens on Sunday evening at a different price from Friday's close, stop losses fill at the first available price, not their level. Here is why, what protection exists and how to manage weekend risk.
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A stop loss is an instruction to close at the next available price once your level is reached. It is not a guaranteed price. When forex reopens on Sunday evening at a different level from Friday's close, a gap, there may be no trading at your stop at all. The order then fills at the first price available after the open, which can be well beyond the level you set.
Weekend gaps are usually small on major pairs, but news over the weekend, such as elections, central bank surprises or geopolitical events, can move prices a long way before anyone can trade. This page explains how gaps work, what protects you, and how to decide whether to hold a position over the weekend.
| Market closes | Friday 17:00 New York time |
|---|---|
| Market reopens | Sunday 17:00 New York time |
| Stop loss in a gap | Fills at the first available price |
| Guaranteed stops | Offered by some brokers, for a fee |
| Retail protection (EU, UK, AU) | Negative balance protection |
What a gap is
Forex stops trading for about two days each weekend. News keeps happening, and when liquidity providers start quoting again on Sunday evening, they price in everything that happened while the market was shut. If the first quote is far from Friday's last one, the chart shows a gap: an empty space between Friday's last candle and Monday's first.
Most Sunday opens are calm, with gaps of a few pips on major pairs. Larger gaps tend to follow unexpected events: an election result, a referendum, a surprise policy announcement or a weekend conflict. Gold and some crosses gap more than EUR/USD because they react more sharply to risk news.
Why your stop did not save you
| Order type | What happens in a gap | Fill price |
|---|---|---|
| Stop loss | Becomes a market order once price is beyond it | First available price after the gap |
| Take profit (limit) | Fills at its level or better | Your level or better |
| Guaranteed stop loss | Closes at exactly your level | Your level, for a premium |
| Pending buy or sell stop | Triggers and fills like a stop loss | First available price |
A take profit is a limit order, so a gap in your favour fills it at its level or better. Stop losses are stop orders, so a gap against you fills them at whatever price exists. That asymmetry is why gaps feel unfair, but it is how stop orders work in every market.
A worked gap example
Suppose you buy 1 lot of EUR/USD at 1.1700 on Friday with a stop at 1.1650, a 50-pip risk worth $500. Over the weekend, unexpected political news hits the euro. Sunday's first quote is 1.1580. Your stop is now 70 pips above the market, so it triggers immediately and fills near 1.1580. The loss is 120 pips, or $1,200, more than twice what you planned.
A trader in Cairo holds 0.2 lots of gold over a weekend with a $15 stop, planning to risk $300. Weekend headlines push gold sharply higher at the open, and the short position's stop fills $24 away from entry instead of $15. The loss is $480 instead of $300. Since then the trader halves gold positions on Fridays and keeps them only when the setup is on a higher timeframe.
What protects you
- Guaranteed stop losses. Some brokers, mostly on CFD platforms, offer stops that close at exactly your level for a premium paid if triggered. They are rarely available on MetaTrader forex accounts.
- Negative balance protection. ESMA's rules require it for retail CFD clients in the EU, and the UK and Australia have equivalent rules: your account cannot go below zero. It limits the worst case to your deposit, not to your planned risk.
- Smaller weekend positions. The simplest protection is holding less over the weekend, or nothing at all.
Should you hold over the weekend?
It depends on the trade. Swing and position trades built on daily or weekly charts expect to hold through weekends, and a few gap pips are part of their normal range. Short-term trades with tight stops gain nothing from the weekend and carry the full gap risk. A practical rule: if your stop is smaller than the instrument's typical weekend gap plus a margin, reduce or close the position before Friday's close.
Check the calendar before Friday
Elections, referendums and central bank meetings sometimes fall at weekends. Our economic calendar lists scheduled events, and our holiday calendar shows long weekends, when the market is closed even longer and gaps can be larger.
Monday open spreads
Spreads are wide in the first minutes after the Sunday open, because only a few liquidity providers are quoting. Pending orders close to the price can trigger on the wide spread alone. If you plan to enter on Monday, wait until the Asian session has settled, often 30 to 60 minutes after the open, before placing orders.
Margin and leverage over the weekend
Several brokers raise margin requirements or lower leverage on Friday afternoons to cover gap risk. Open positions may be recalculated at the new rate, reducing free margin. If margin level is already low, that change alone can bring a margin call. Check your broker's published weekend schedule; our guides to Exness leverage and XM leverage describe two examples.
On Friday afternoon, list every open position and ask: would I open this exact trade now, knowing I cannot exit for two days? If not, close or reduce it.
A gap can skip several levels at once. Stops placed at obvious round numbers just beyond Friday's range give no protection if Monday opens well past them.
Frequently asked
Why did my stop loss fill at a worse price?
Price gapped past your stop at the open. A stop loss becomes a market order once price is beyond it and fills at the first available price. If no trading happened at your level, the fill is wherever the market opened, which can be far away.
What time does forex reopen after the weekend?
Sunday at 17:00 New York time, which is 22:00 in London, 23:00 in Lagos in winter and 01:00 Monday in Nairobi in winter. Spreads are wide for the first minutes as liquidity returns.
Can I lose more than my stop loss?
Yes, if price gaps or slips past it. With negative balance protection, required for retail clients in the EU, UK and Australia and offered by many offshore entities, you cannot lose more than your account balance.
What is a guaranteed stop loss?
A stop that closes at exactly your level even in a gap, for a premium paid if it triggers. Some CFD brokers offer it, usually on their own platforms rather than MetaTrader forex accounts.
Should I close trades before the weekend?
Short-term trades with tight stops usually should, because the weekend adds risk without adding opportunity. Longer-term trades may hold, but at a size where a large gap would still be an acceptable loss.
Do take profits fill at a better price in a gap?
Yes. A take profit is a limit order, so if price gaps through it in your favour, it fills at your level or better. Stops are the orders that suffer from gaps.
Official sources: MetaTrader 5 Help · ESMA: CFD product intervention measures
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