# How to trade (or avoid) weekend gaps > The market closes Friday and reopens Sunday, and the price in between can be very different. Here is why gaps happen, what they do to your stops, and how to trade — or simply survive — the Monday open. - Canonical URL: https://forextradingcommunity.com/news/how-to-trade-weekend-gaps/ - Type: Guide - Published: 2026-09-17 - Updated: 2026-09-17 - Publisher: Forex Trading Community (https://forextradingcommunity.com), FTC Editorial Team - Currencies: USD Every Friday evening the forex market closes, and every Sunday evening it reopens — and the price at the reopen is not always where Friday left it. A weekend of headlines, elections, geopolitical events or policy surprises can gap a pair far from Friday's close, through stops, into positions, and into the trader's weekend peace. The gap is one of forex's structural risks, and it deserves its own playbook. This guide explains why gaps happen, what they do to open positions and stops, and the two ways to handle them — the defensive routine and the gap-trading strategies. The mechanics are in [weekend gaps explained](/news/weekend-gaps-explained/); this guide is the practical layer. ## Why the gap happens The forex market trades around the clock on weekdays, but Friday's close to Sunday's open is a genuine pause — roughly 48 hours in which the world keeps moving while the market does not. Anything that happens in that window — an election result, a central bank surprise, a geopolitical shock, a change in risk appetite — gets priced all at once at the Sunday open, and the opening price lands wherever the new information says it should. The result is the gap: Sunday's open is above or below Friday's close, sometimes by a little, sometimes by a lot. The gap is not a malfunction; it is the market pricing two days of news in one instant. The [weekend gaps guide](/news/weekend-gaps-explained/) covers the mechanics and the historical examples, including how gaps interact with stops. ## What gaps do to positions and stops Two facts decide the weekend risk for any open position. First, the gap revalues the position instantly — a position that was comfortably in profit on Friday can open Sunday in loss, before any trading decision is possible. Second, and more painfully, gaps run through stops: a stop placed at 1.0950 does not fill at 1.0950 when Sunday opens at 1.0900. The stop fills at the opening price, wherever that is, and the loss can be far larger than the planned risk. The stop is still worth having — it exits the position instead of letting it run further — but the weekend gap is the case where the stop's protection is partial. The full defence is the Friday decision: what you hold into the weekend, and how much of it. The [stop-loss guide](/news/where-to-place-a-stop-loss/) covers the gap-aware stop logic. ## The defensive routine: the Friday decision The most important gap strategy is not a trade — it is the Friday routine that decides what survives the weekend. The checklist: 1. **Read the weekend calendar.** Elections, referendums, OPEC meetings, geopolitical flashpoints — anything scheduled for the weekend that could move the pairs you hold. The [economic calendar](/calendar/) shows the scheduled events; the news cycle shows the rest. 2. **Decide per position.** Each open trade gets a verdict: hold, reduce, or close. The verdict weighs the position's profit cushion against the weekend's plausible gap. 3. **Size the survivor.** Positions held through the weekend should be sized for the gap, not for the Friday conditions — the worst plausible Monday open should be survivable. 4. **Write the Monday plan.** What you will do at the open for each outcome: gap in your favour, gap against you, no gap. The plan is written Friday, because Monday morning's brain is not the one to make it. ## Trading the gap itself Beyond the defence, the gap itself is tradeable — with a clear-eyed view of the risks. The Monday open is thin: liquidity is low, spreads are wide, and the first moves are often exaggerations that settle later. Two strategies dominate: **The gap fill.** Many gaps partially or fully close in the hours after the open, as the initial overreaction unwinds. The gap-fill trader waits for the open's first move to stall, then trades back toward Friday's close, with the stop beyond the open's extreme. The trade's logic is mean reversion in thin conditions — and its risk is that the gap was justified, and the fill never comes. **The gap continuation.** When the weekend's news is genuinely direction-changing, the gap is the first leg of a new trend, not an overreaction. The continuation trader waits for the open's first structure — a range, a pullback level — and trades in the gap's direction once the market confirms it intends to continue. The trade's logic is momentum; its risk is the same thin-liquidity fills as everything else at the Monday open. Both strategies share the same preconditions: trade small, because Monday's spreads and slippage are the week's worst; wait for the first minutes to settle, because the open itself is the least informative moment; and let the weekend's story decide which strategy applies. A gap on a quiet weekend is more likely to fill; a gap on genuine news is more likely to run. [Bid, ask and slippage explained](/news/bid-ask-and-slippage-explained/) describes the fills to expect. ## The honest default For most traders, the highest-percentage gap strategy is avoidance: reduce the weekend exposure to what the account can comfortably survive, and treat the Monday open as an observation window rather than a trading opportunity. The gap is a risk to be managed first and an opportunity second — and the traders who invert that order are the ones whose weekends end at the Sunday open. The gap is not an anomaly; it is the market's most honest moment — the instant when two days of unprocessed news get priced all at once. Manage the Friday decision well, and the Monday open becomes a routine event instead of a crisis. ## Sources - [Bank for International Settlements](https://www.bis.org/) - [US Commodity Futures Trading Commission](https://www.cftc.gov/) ## Common questions ### Why do forex gaps happen at the weekend? The market closes from Friday evening to Sunday evening, but the world keeps moving. Any news in that window — elections, shocks, policy surprises — is priced all at once at the Sunday open, creating the gap. ### Can a stop-loss protect me from a gap? Partially. A gap runs through stops: the position exits, but at the opening price, not the stop's level. The stop limits the damage rather than preventing it — sizing the position for the gap is the real defence. ### Do weekend gaps usually fill? Many partial or full gaps fill in the hours after the open as the initial overreaction unwinds — but not all. Gaps on quiet weekends fill more often than gaps driven by genuine, direction-changing news. ### Should I close positions on Friday? Not necessarily — but decide deliberately. Read the weekend calendar, weigh each position against the plausible gap, and size the survivors for the worst Monday open. The decision is the strategy. ### Is the Monday open a good time to trade? It is thin and volatile — the week's widest spreads and least reliable early moves. Most traders observe the first hour and trade the levels it leaves, rather than the open itself. --- This article is for information only and is not financial advice. Trading forex and CFDs carries a high risk of losing money.