What is liquidity in trading in simple terms?
In economics textbooks, liquidity is the ability to buy or sell an asset quickly without moving its price much. In Smart Money trading the word is used more narrowly: liquidity means specific places on the chart where orders have piled up. Mostly stop losses, plus pending breakout orders.
The logic is simple. To buy a large size, you need someone to sell it to you. A buyer's stop loss is a market sell order. So below obvious lows, where buyers' stops sit, there are always ready sellers. A large player benefits from pushing price there, triggering those stops and filling a position against them. On the chart, that looks like a move beyond a level followed by a quick reversal.
Liquidity answers a trader's main question: where is price most likely to go next? To where the money is.
Where is liquidity on a chart?
Traders place stops where classic technical analysis tells them to. So liquidity sits at the most obvious levels:
- equal highs and lows (EQH, EQL): two or three tops at the same level look like "strong resistance," and stops pile up above them;
- obvious swings: highs and lows that price clearly reversed from;
- the previous day's high and low (PDH, PDL) and the previous week's (PWH, PWL);
- session boundaries: the Asian high and low (AH, AL) and Frankfurt's, which London or New York often take out;
- trendlines: every support line has a row of stops below it.
The more obvious the level, the more orders rest there and the higher the chance price will reach it.
BSL and SSL: buyside and sellside liquidity
In ICT terms, liquidity is split by the side of the orders:
| Term | Where | Whose orders | What happens when it's swept |
|---|---|---|---|
| BSL (buyside liquidity) | Above highs | Short sellers' stops and buy-stop breakout orders, all buys | Price trades above the high, fills the buys, and sells into them |
| SSL (sellside liquidity) | Below lows | Long traders' stops and sell-stop breakout orders, all sells | Price trades below the low, fills the sells, and buys into them |
That's why a BSL sweep often comes before a drop and an SSL sweep before a rally. Often, not always: sometimes a sweep is just the start of a trending move.
This is also the main shift in thinking. Classic technical analysis sees "strong resistance" at equal highs and sells from it. We see stops that the market will most likely take, and we look to sell after the sweep, not before. Same level, opposite conclusion.
What are internal and external liquidity?
Take the current trading range, for example from the last significant low to the high.
- External range liquidity is outside the range: above its high and below its low.
- Internal range liquidity is inside it: unfilled fair value gaps (FVG), small swings, under-traded areas.
Price swings like a pendulum between the two. After taking external liquidity, the market often comes back to fill internal liquidity by retracing into a fair value gap. After filling internal liquidity, it goes for the next external pool. This helps with choosing targets: if the entry is from a fair value gap, the target is external liquidity, and vice versa.
What is a liquidity sweep?
A liquidity sweep (also a raid, resweep or liquidity grab) is a brief move beyond a level where stops sit, followed by a return. The signs:
- Price breaks the high or low with a wick, not with a candle body, on your working timeframe.
- The candle closes back inside the range.
- After that, a break of structure in the opposite direction appears on the lower timeframe.
In our reports these show up as "raid pdh," "resweep ib" or "manipulation into the 1h fractal." A sweep by itself isn't an entry signal. It's a reason to start looking for an entry, if it matches the plan.
How does liquidity relate to trading sessions?
Liquidity builds up during quiet hours and gets taken during active ones. On European indices you can see it every day:
- Asia draws a range. Its high and low (AH, AL) become obvious levels with stops building beyond them.
- Frankfurt often makes the first move: it either confirms the Asian "narrative" or takes out one of its boundaries.
- London often takes liquidity beyond the Asian or Frankfurt high or low, and then the main move of the day starts.
- New York either continues London's move or sweeps its extreme and reverses price.
That's why our morning plan always starts with one question: which side of Asia and the previous day has the market not taken yet? Those are the first candidates for targets and reversal points.
Liquidity on different timeframes
Liquidity exists on every timeframe, but its role differs:
- Weekly and daily: the previous week's high and low (PWH, PWL) and the previous day's (PDH, PDL). These are targets for several days ahead and the main reference points of the morning plan.
- Sessions and 1h: Asian and Frankfurt highs and lows, 1-hour fractals. This is the working level: most of the sweeps after which we look for an entry happen here.
- 15m and below: small swings inside the move. A sweep of one means little on its own, but inside a higher-timeframe zone it can become a trigger.
The rule: take targets from the 1h or higher, triggers from the lower timeframes. A sweep of a 3-minute low in the middle of nowhere on the chart is no reason to trade.
What is inducement (IDM)?
Inducement (IDM) is a small "bait" pool of liquidity right in front of the main zone. For example, a minor low inside a pullback to a 4h fair value gap. Traders who got in too early put their stops under that low, and the market takes them out on the way to the real zone.
The practical takeaway: if there's a fresh minor swing between price and your zone, don't enter until it's swept. In our reports this reads as "raid idm" or "repeat resweep of idm": the inducement sweep became one of the entry factors.
How we use liquidity at Fix Pips
Liquidity plays two roles in our trading.
Target. We set the take profit at the nearest liquidity in the direction of the trade: the Asian low or high, PDL or PDH, equal lows. We don't push a trade "all the way"; we take the first obvious pool of liquidity, which is statistically more reliable.
Trigger. Our most common model is 1h3m: price sweeps the liquidity of a 1-hour fractal (a swing on the 1h), and then a break of structure in the opposite direction appears on the 3-minute chart. Entry is on a test of the small fair value gap that forms or on a pullback into OTE; the stop goes beyond the extreme of the sweep.
Trade from the channel
A short after a sweep of liquidity above the 30-minute DAX fractal and the 1-hour GER40 fractal, confirmed by a 3m BOS: our classic 1h3m model. The target was the Asian low, since that's what launched the rally that swept the liquidity above, so we didn't push for the daily level.
Trade in the journal (RU)An extra filter is whether correlated indices move in sync. If EU50 swept liquidity above a high and GER40 didn't, that's SMT divergence: a sign of weakness that often confirms the reversal after a sweep.
How do you tell a liquidity sweep from a real breakout?
This is the main practical question, and there's no 100% answer to it. Comparing the signs helps:
| Sign | Sweep | Breakout (BOS) |
|---|---|---|
| Candle close | Inside the range | Beyond the level |
| Reaction after | Quick return, break of structure against the move | The pullback to the level holds |
| Higher-timeframe context | Move against the HTF bias or into an HTF zone | Move with the HTF bias |
| What happens next | Price heads for the opposite liquidity | Price continues toward the next target |
If the signs contradict each other, the best decision is to skip the trade.
An example of liquidity working against us
Most of our stops happen when we enter next to liquidity the market hasn't taken yet.
Trade from the channel
Entry from a sweep of the 1-hour fractal inside a 4h fair value gap, per the morning plan. Review: the PDH area is the most protected liquidity of the day, and any lower-timeframe execution next to it is high risk. The right move was to go to breakeven once the Asian low was hit.
Trade in the journal (RU)The takeaway from this review went into the journal as a rule: if strong external liquidity like PDH sits nearby in the direction of the trade, don't hold full risk all the way to the target; after the first target, move the position to breakeven.
Common mistakes when trading liquidity
- Seeing liquidity at every swing. What matters is liquidity at obvious levels: PDH and PDL, sessions, equal highs and lows on the 15m and above.
- Entering right on the sweep. A sweep without a lower-timeframe break of structure may be the start of a breakout.
- Putting your own stop right beyond an obvious high. That's exactly where everyone else's stop is. The stop goes beyond invalidation of the idea, with a buffer for the spread.
- Forgetting about the opposite side. After a BSL sweep, the target is often SSL. If it's close, the risk-to-reward may not justify the trade.
- Confusing liquidity with support. Equal lows aren't a floor to lean a long on; they're a cluster of stops that will most likely get taken.
- Ignoring time. A sweep of the Asian high at the Frankfurt or London open means more than the same move at lunchtime.
Liquidity is the second step in our trading learning roadmap. Next, study the fair value gap (FVG): together they give you almost the whole map of the chart.
FAQ
What does a liquidity sweep mean?
It's when price briefly trades beyond a high or low where stops are sitting, triggers them and comes back. On the chart you see a wick beyond the level with the candle closing back inside the range. It's also called a raid, a liquidity grab or a stop run.
What's the difference between internal and external liquidity?
External liquidity sits outside the current range: above its high and below its low. Internal liquidity is inside the range: fair value gaps (FVG) and small swings. Price usually moves from one to the other: it takes external liquidity, comes back to internal, and vice versa.
Where is liquidity on a chart?
Above equal highs and below equal lows, above and below obvious swings, at the previous day's and week's high and low (PDH/PDL), and at session boundaries, especially Asia. The more obvious a level is to the crowd, the more stops sit there.
How do you tell a liquidity sweep from a breakout?
In a sweep, price quickly returns beyond the level and the lower-timeframe candle closes back inside the range. In a breakout, price holds beyond the level and the pullback to it holds. We only decide after the candle closes and we get confirmation on the 3m–15m.
This material is for educational purposes only and is not investment advice. Trading financial markets carries a high risk of losing capital; past trades do not guarantee future results.