What Is a Fair Value Gap (FVG) in Trading and How to Spot It

What is a fair value gap in simple terms?

Think of price as an auction. Normally buyers and sellers trade at every level, and candles overlap each other with their wicks. But sometimes one side pushes so hard that price flies through several levels with almost no opposing orders. On the chart this looks like a long impulse candle that leaves "empty" space between the wicks of its neighbors. That's a fair value gap, also called an imbalance.

Why does it matter? The market treats an area that price moved through in one direction as under-traded. Later, price often comes back to "finish trading" it, to test it or fill it. For a trader, that's a ready-made zone to wait for a reaction in the direction of the original impulse.

How do you find a fair value gap on a chart?

You look for a fair value gap across three candles, not one. Here's the process:

1. Find the impulse candle: noticeably longer than its neighbors, with small wicks.
2. Look at the candle before it and the candle after it.
3. Bullish: if the high of the first candle is below the low of the third, there's a bullish fair value gap between them.
4. Bearish: if the low of the first candle is above the high of the third, it's a bearish fair value gap.
5. Mark the zone with a box from the wick of the first candle to the wick of the third and extend it to the right until price comes back into it.

Important: the zone is drawn from the wicks, not the bodies. If the wicks overlap by even one point, there's no classic fair value gap.

Is an imbalance the same as an FVG?

Yes. Traders call it a fair value gap (FVG), an imbalance or an inefficiency. Different names, one pattern. A whole family of terms has grown around it:

What types of fair value gaps are there? BISI and SIBI

The direction of a fair value gap is usually labeled with two ICT abbreviations. BISI (buyside imbalance, sellside inefficiency) is a bullish FVG: buyers dominated and sellers were inefficiently represented. SIBI (sellside imbalance, buyside inefficiency) is bearish: the reverse.

In practice they're just handy labels: "test bisi 4h" in our reports means "price came back into a bullish FVG on the 4-hour chart." For more on the difference and how not to mix them up, see BISI and SIBI.

What timeframe should you look for fair value gaps on?

We work on the principle "zone from the higher timeframe, entry from the lower."

• 4h and 1h are the main zones. These are what we mark in the morning when preparing the plan: open bullish and bearish fair value gaps above and below the current price.
• Daily and weekly give context. A daily or weekly FVG shows where the market may be drawn over the next few days.
• 15m, 5m, 3m are for confirmation. Once price reaches a 4h or 1h zone, we wait on the lower timeframe for a break of structure and a new small fair value gap in our direction, and we enter on its test.

Fair value gaps are often nested. A reaction to a weekly FVG creates a 4-hour one, and a reaction to the 4-hour one creates a 1-hour one. That chain is one of the strongest scenarios in our trading.

How do you judge the strength of a fair value gap?

Not all fair value gaps are equal. Before planning a trade from a zone, we grade it on several points:

• Timeframe. A 4h FVG carries more weight than a 15m one. Daily and weekly zones act as magnets for days ahead.
• Impulse. The longer the candle that created the gap and the smaller its wicks, the more aggressive the side that printed it. That's displacement.
• What came before it. The strongest fair value gaps form right after a liquidity sweep: the market took the stops and moved sharply the other way.
• Break of structure. If the impulse that left the FVG took out a significant high or low, the zone confirms the new direction.
• Location. A bullish FVG in discount (below the middle of the range) is more reliable than one in premium, and vice versa.
• Freshness. The first test of a zone is the strongest. After two or three touches, the reaction usually weakens.

If a fair value gap fails on at least two of these points, we mark it but don't plan a trade from it.

How is a fair value gap different from a gap or an order block?

These terms often get mixed up, even though they describe different things:

In practice they often coincide: an impulse from an order block leaves a fair value gap, and the DAX opening gap itself acts as a zone the market fills. That's why our reports sometimes have both "test gap" and "test bisi" in the same trade.

How we trade fair value gaps at Fix Pips

Here are the rules we apply to a GER40 trade from a fair value gap:

1. Direction. We define the HTF bias, the direction from the higher timeframes. We only trade fair value gaps in that direction.
2. Zone. We pick an open, untested fair value gap on the 4h or 1h. Ideally it lines up with the 0.5 level or the OTE zone of the current impulse.
3. Time. We wait for price to reach the zone during an active session: Frankfurt, London or New York.
4. Confirmation. We need a break of structure in the direction of the trade on the 3m–15m. Without it we don't enter, no matter how good the zone looks.
5. Stop. Beyond the point that invalidates the idea, usually beyond the extreme that tested the zone or beyond the higher-timeframe zone itself.
6. Target. The nearest liquidity in the direction of the trade: the session high or low, PDH or PDL, the next fair value gap.

Trade from the channel

GER40 / DAX TRADINGVIEW ↗

How do you read "test bisi 4h + 3m bos"?

That's what the entry factors look like in almost every one of our reports. Broken down:

• test bisi 4h: price came back into a bullish fair value gap on the 4-hour chart. That's the higher-timeframe zone that makes us look for a long in the first place.
• 3m bos: inside that zone, structure broke to the upside on the 3-minute chart. That's the confirmation: buyers are active again.
• Sometimes test 0.5 or test ote is added: the pullback after the break reached the middle of the range or the OTE zone of the smaller impulse, which is where we entered.

Read an entry like this left to right: from higher timeframe to lower, from "where" to "when." If there's no higher-timeframe zone in the entry, only a lower-timeframe signal, the trade is weaker by default.

What do "test," "fulfill" and "inversion" of a fair value gap mean?

In our reports we distinguish three ways price interacts with a zone:

• Test: price touched the fair value gap or traded into part of it and reacted. This is the main entry scenario.
• Fulfill (ff): price filled the fair value gap completely, all the way to the opposite edge. A reaction after a full fill is possible too, but the zone has already "done its job."
• Inversion (iFVG): price broke through the fair value gap with a candle body. Former support becomes resistance. In our reports this shows up as "ifvg 3m" or "15m inversion": the inversion of a small FVG is often exactly what confirms a reversal for us.

When does a fair value gap fail?

A fair value gap is a probability, not a rule of the market. It fails when:

• it goes against the higher-timeframe direction: counter-trend FVGs get broken more often;
• it has already been tested: each touch is weaker than the last;
• strong news comes out: the volume wipes out any technical zone;
• untouched liquidity remains above or below the zone, and the market would rather take it first.

Trade from the channel

GER40 TRADINGVIEW ↗

A stop in a case like this is a normal part of the statistics. The mistake would be moving the stop deeper "because the zone has to hold."

Common mistakes when trading fair value gaps

• Drawing the zone from candle bodies. A fair value gap is a gap between wicks. Bodies make the zone wider, and your stop ends up in the wrong place.
• Entering on the touch without confirmation. The zone tells you "where"; lower-timeframe confirmation tells you "when."
• Seeing a fair value gap in every gap on the 1m. On low timeframes there are dozens of them an hour. Without a higher-timeframe zone, it's noise.
• Ignoring direction. A bullish FVG in a downtrend is the first candidate for an inversion.
• Not extending zones to the right. Open 4h and daily fair value gaps work for days and weeks; keep them on the chart until price fills them.
• Putting the stop inside the zone. Price often trades through a fair value gap to the middle or to the far edge before reversing. The stop goes beyond invalidation, not beyond the first edge.

The fair value gap is the third step in our trading learning roadmap. Next comes OTE: how to refine your entry inside the zone. And to see how fair value gaps connect to stop runs, read our article on liquidity.