Price Gaps
A price gap is a jump on the chart: the market opens at a different price than it closed. In forex, gaps are most common around weekends and sudden shock events. They matter because price can skip over your stop level—turning a “defined risk” trade into a bigger loss than planned.
Risk warning: This content is for educational purposes only and not financial advice. Forex trading involves risk, and you can lose money.
Forex price gaps
A gap is when the market opens at a different price than it closed, creating a jump on the chart. Gaps can bypass stop losses and cause larger-than-expected losses.
- Most common: weekend opens
- Also happens: shock headlines & thin liquidity
- Main risk: stops can be skipped (worse fill)
Gaps are rare—until the day they’re not. Plan for them before you hold trades.
What causes gaps?
- Weekend close → reopen: the market reopens with new information priced in (common “weekend gap”).
- Unexpected headlines: shock events can reprice fast when liquidity can’t keep up.
- Thin liquidity moments: fewer orders at nearby prices increases the chance of “jumping” levels.
Rollover gaps (daily turnover)
Besides weekend gaps, you can sometimes see small “micro-gaps” or sudden jumps around the daily rollover. This happens because liquidity can briefly dry up while pricing resets and spreads widen, so the next tradable quote can appear noticeably higher/lower on the chart.
- When it happens: often around the broker’s daily rollover (commonly around 5pm New York time, depending on broker/server time).
- Why it looks like a gap: quotes thin out and spreads can spike, so price can “jump” to the next available bid/ask.
- Pairs most affected: crosses/minors and less liquid pairs (EUR/CHF is a classic example), sometimes also metals/exotics.
- Main danger: tight stops can get tagged by a spread spike or filled worse than expected.
How to reduce rollover-gap risk
- Beginner rule: avoid opening new trades a few minutes before/after rollover, especially with tight stops.
- Risk control: reduce position size if you must hold through rollover.
- Practical check: watch your platform’s spread around rollover once or twice—you’ll immediately see which symbols are sensitive.
Why gaps are dangerous for stop losses
- Stops are not magic: if price jumps over your stop, you get filled at the next available price (worse than planned).
- Leverage amplifies it: a gap can push losses beyond what you expected from normal candles.
- Worst-case: in extreme gaps, negative balance protection becomes relevant.
How to reduce gap risk (beginner checklist)
- Avoid holding over weekends when you’re not prepared for a jump.
- Lower position size before risky holds (your best protection).
- Keep stops realistic: ultra-tight stops are more likely to be bypassed in fast conditions.
- Know your broker’s protection: margin rules and negative balance protection vary by entity.
Are “gap fills” guaranteed?
- No: some gaps fill quickly, others don’t—treat a gap as a warning sign, not a promise.
- Better mindset: manage exposure first; only then think about opportunity.
Dive deeper in gaps (next lessons)
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