Price Gaps in Trading: Types, Causes & How They Work

On Friday, a stock closes at $50. On Monday, with no trading in between, it opens at $53. That jump, with nothing traded in the range in the middle, is a price gap, and understanding it properly changes how you read a chart, how you calculate the real risk on a position, and how you interpret what the market is actually saying when it happens.

This guide covers price gaps in trading with the level of detail usually missing: not just the definition, but the four concrete types that exist, real examples of each, and the honest answer, not the myth, to whether a gap always ends up getting filled.

We cover what price gaps are, why they happen, the different types that exist, how they behave in forex, stocks, and commodity markets, how to identify and analyze them on a chart, whether they really always get filled, how traders use them in their strategies, and the concrete risks of trading around them.

1. What Are Price Gaps in Trading?

A price gap is a jump on the chart where a candle's opening price is noticeably different from the previous candle's close, with no trading having occurred in the price range between the two. On a candlestick chart, it literally looks like an empty space between two consecutive candles.

The most common example shows up between one session's close and the next one's open: a stock closes Friday at $50 and opens Monday at $53, with no price in between ever having traded. That $50-to-$53 hole is the gap. Smaller gaps can also appear between daily sessions in markets with fixed closing hours, though the weekend example is the most visible one.

2. Why Do Price Gaps Happen?

Gaps happen because of a temporary imbalance between supply and demand, usually because something shifted market perception while trading was paused. The most common causes:

• News outside market hours — earnings released after the close, an interest rate decision, or a geopolitical event happening overnight or over the weekend.

• Relevant economic data — jobs numbers, inflation figures, or central bank decisions released before the open.

• Sentiment that builds up while the market is closed — collective opinion on an asset can shift during a closed session with no way to show up in price until the market reopens.

When the market reopens, all the orders that accumulated during that period execute almost simultaneously, and price "jumps" straight to the level where supply and demand rebalance, instead of gradually working through the levels in between.

3. The Different Types of Price Gaps

There are four types of price gaps in trading worth telling apart, because each one says something different about what's actually happening in the market. If you searched something like "gaps stock price" specifically, this is exactly where it matters most: equities show all four types more often than any other market.

Common gap (or area gap): shows up inside a sideways range, on low volume, without a clear fundamental reason behind it. Example: a stock that's been trading between $40 and $42 for weeks opens one day at $42.50 with no relevant news. It usually closes fast, often the same day or within a few sessions.

Breakaway gap: shows up when price forcefully breaks a consolidation range or a key technical level, backed by heavy volume. Example: that same stock, after weeks in the $40-$42 range, posts better-than-expected earnings and opens at $48 on volume well above average. It usually marks the start of a new trend, and often doesn't fill soon, sometimes taking weeks or never filling at all.

Runaway (continuation) gap: shows up in the middle of an already-established trend, as more participants pile into the move. Example: the stock keeps climbing from $48, and mid-trend it gaps again up to $54, confirming the trend still has strength. This type also tends to take a while to fill while the trend continues.

Exhaustion gap: shows up at the end of an extended trend, when the last buyers (or sellers) pile in out of fear of missing out, right before the move runs out of steam. Example: after several weeks climbing, the stock gaps again up to $60, but this time momentum fades fast and price starts reversing. This type of gap tends to fill relatively quickly, often marking the start of a reversal.

4. Price Gaps in Forex, Stocks, and Commodity Markets

How gaps behave changes quite a bit depending on the market you're trading, mostly because of each market's trading hours:

• Stocks — tend to have the most visible and frequent gaps, since every stock exchange closes for several hours every day, and earnings are almost always released outside that window. Stock price gaps are, in fact, the example cited most often in any guide on the topic.

• Forex — trading nearly 24 hours Monday through Friday, intraday gaps are rare; the most relevant gap is usually the weekend one, between Friday's close and Sunday night's open. Forex price gaps almost always boil down to that single weekly event.

• Commodities — behavior varies by instrument: some commodity CFDs trade in wider windows than stocks but narrower than forex, which can produce both weekend gaps and small daily gaps between each session's close and reopen.

One technical detail worth knowing: since different commodity markets (energy, metals, agricultural) trade on slightly different schedules from one another, you can sometimes observe real-time price gaps between commodity markets that are otherwise related, for example between oil quoted on a CFD platform and the underlying futures contract trading on its own separate closing schedule. Compared to forex price gaps or stock price gaps, this kind of cross-market mismatch is more of a technical curiosity than a regular trading opportunity. If "gaps stock price" is closer to what you're actually after, stocks remain the clearest, most common case to study.

5. How to Identify and Analyze Price Gaps on a Chart

Spotting a gap visually is simple: it's the empty space between one candle's close and the next one's open, with no price traded in between. Analyzing it well takes a bit more context:

1. Compare the gap's size to the asset's average range (using something like the ATR, or average true range) — a gap several times larger than the typical daily move is far more significant than a small one within normal noise.

2. Check the volume on the gap candle — a gap on heavy volume backs up real conviction behind the move; a gap on low volume is more likely just a common gap without much meaning.

3. Place the gap within the trend's context — the same size gap means something different depending on whether it shows up mid-range, at the start of a breakout, mid-trend, or after an already-extended move.

4. Mark the gap level as a future technical reference — many traders treat the edge of an unfilled gap as a potential support or resistance level later on.

6. Do Price Gaps Always Get Filled?

No, and treating this as a guaranteed rule is one of the more expensive mistakes you can make trading gaps. It's true that many gaps eventually get filled, meaning price trades back through the range it skipped, but the odds and the time it takes vary a lot depending on the type of gap.

Common gaps and exhaustion gaps tend to fill relatively fast, either because there wasn't much real conviction behind them (common gaps) or because they mark the end of a move that's already lost steam (exhaustion gaps). Breakaway and runaway gaps, on the other hand, often don't fill soon, because they represent a real trend with genuine demand or supply behind it; waiting for the fill before trading with that trend can mean missing the whole move.

The practical takeaway: there's no reliable "gaps fill X% of the time" number you can apply across the board, because it depends too much on the gap type and the context. Treating it as a universal law instead of a tendency that varies by type is exactly the kind of oversimplification that leads to losses.

7. How Traders Use Price Gaps in Trading Strategies

There are two main, nearly opposite approaches to trading gaps, and picking the right one depends on the type of gap you identified in section 3:

Trading with the gap (gap and go): entering in the direction of the gap, betting the move continues, especially on breakaway or continuation gaps backed by heavy volume. This connects directly to the breakout trading covered in our trading strategies guide.

Trading the gap fill (gap fade): betting price trades back to fill the hole, especially on common or exhaustion gaps, where the odds of a fill are higher. This approach demands more discipline to exit quickly if the gap turns out to have more strength than expected.

In either case, the volume on the gap candle and the trend context (covered in section 5) are what separate an informed decision from a blind guess about which type of gap you're looking at.

8. Risks and Considerations When Trading Price Gaps

The biggest, least understood risk with gaps is slippage: if you have a stop loss set at a specific level, a gap can jump straight past it without executing at the price you set, especially on positions left open over the weekend. That's exactly the mechanism behind the overnight risk we cover in our swing trading guide, and it can also accelerate a margin call much faster than expected if you're trading on leverage, a topic covered in detail in our leverage trading guide. This risk applies whether you're trading stock gaps or watching real-time price gaps between commodity markets during a volatile session.

A few other concrete risks worth keeping in mind:

• Misreading the gap type — confusing an exhaustion gap for a breakaway gap can get you entering right as the move is about to reverse, not continue.

• Trading low-volume gaps as if they were strong signals — a gap with no real volume behind it is much more likely to be noise than a genuine signal.

• Ignoring the context of related markets — a gap in an individual stock could be company-specific, or part of a broader market or sector move, and the right approach depends on which one it is.

Knowing the types of price gaps in trading covered in section 3 is, at bottom, the best defense against all three mistakes.