Order blocks and fair value gaps come from the same teaching tradition as the previous lesson. One of them describes something real and observable. The other is real but far weaker than its reputation. Knowing which is which saves a lot of money.
Fair value gaps — the solid one
A fair value gap (FVG) is a three-candle pattern where the middle candle moves so fast that candle one's wick and candle three's wick do not overlap. It leaves an untraded band of price.
`` Candle 1 high: 1.1680 Candle 2: large bullish candle Candle 3 low: 1.1694 ↑ the gap: 1.1680 – 1.1694, price passed through without trading ``
the move was one-sided enough that no meaningful two-way trading occurred in that band. Buyers who wanted in got left behind, and sellers who wanted to fade it never got the chance.
Why it means something:
Price returns to fill such gaps frequently — not always, but often enough to be useful. That is not mystical. It is what happens when a fast move outruns participation and later attracts the orders that missed it.
How to use it: as a *zone of interest*, in the direction of the trend, in combination with structure. An FVG in an uptrend is a reasonable place to look for a long. An FVG alone, with no structural context, is a rectangle on a chart.
Order blocks — the weaker one
An order block is usually defined as the last opposite-colour candle before a strong move: the last down-candle before a big rally, or the last up-candle before a sharp decline.
The claim is that institutions filled orders there, so price will return and react.
What is true: the last candle before an impulsive move is, by definition, near the origin of that move. That price is often close to a swing point, and swing points genuinely matter — because of the order clustering covered in the previous lesson.
What is not established: that the candle body itself marks where anyone's orders sit, or that its precise high and low are meaningful. In spot FX there is no way to verify this. The concept survives largely because it approximately coincides with things that do work — swing lows, prior structure, and FVGs.
The honest position: an order block is a rough proxy for "the origin of the move." Use it as one, at low confidence, and never as the sole reason for a trade. If it lines up with a swing low and an FVG, you have a real zone. If it lines up with nothing, you have a candle.
Breakers and mitigation — the same idea, renamed
Two terms travel with order blocks and both describe something you have already met.
A breaker block is an order block that failed. Price formed a zone, broke through it in the opposite direction, and later returned to it from the other side. The claim is that it now acts as resistance instead of support.
Stripped of the vocabulary, that is the level flip from the support and resistance lesson: a level that breaks tends to reverse its role, because the people who defended it are now trapped and their exits push price the other way. The mechanism is trapped positions, not a special category of block.
Mitigation describes price returning to a zone where a large position was supposedly opened, so that the participant can add to it or exit part of it at a better price. The observable part is that price often returns to the origin of a strong move before continuing.
That much is real and you can see it on any chart. What is not observable is *whose* position is being mitigated, or that any mitigation is happening at all rather than ordinary participants buying a pullback.
The honest position on both: use them as names for structures you can verify — a flipped level, a return to the origin of a move. Do not use them as evidence about intent. If a term only ever confirms and never contradicts, it is describing your expectation rather than the market.
The confluence trap
The genuine danger with both concepts is that they are easy to find. On any chart you can locate several FVGs and a dozen order blocks. A tool that always produces a signal produces no information.
Three disciplines keep them useful:
Higher timeframe only. Mark them on the 4-hour or daily, never on the 5-minute. The lower the timeframe, the more of them exist and the less each means.
With the trend only. An FVG against the dominant structure is a place where price will pass through, not stop.
They are zones, not entries. The zone tells you where to look. Structure and a candle close tell you when to act.
Worked example
Gold, 4-hour, uptrend intact — higher highs and higher lows, last swing low 3,381.
A sharp rally from 3,396 to 3,455 leaves an FVG at 3,412–3,424. The last down-candle before the rally sits at 3,394–3,401 — the order block.
Price pulls back. Two zones to consider.
The FVG (3,412–3,424): with the trend, untraded band, above the last swing low. Price enters it at 3,418, prints a rejection candle on the 1-hour, and closes back up.
Entry 3,422, stop 3,376 (below the swing low, not below the zone — the zone is not the thesis, the structure is). Target 3,489, above the prior high. Risk 46, reward 67 — with size reduced to match the wider stop.
The order block (3,394–3,401): deeper, and here it happens to overlap the prior structural low area. That overlap is what makes it worth marking — not the candle itself. If price had reached it and reclaimed, that would also be a valid long, with the same stop.
What would make both worthless: if gold had already closed below 3,381. Structure broken, downtrend forming, and every bullish zone above becomes a place price passes through on the way down. The zones did not change. Their meaning did.
What to be sceptical of
Order blocks marked to the exact pip, as though the candle's high were a meaningful price
Any presentation where these concepts never fail
Marking them on low timeframes, where you can always find one that "worked" in hindsight
Treating the vocabulary as evidence
What to take away
Fair value gaps describe something observable: an untraded band left by a one-sided move.
Order blocks are a rough proxy for the origin of a move, and work mainly where they coincide with structure.
Both are zones of interest, never entries on their own.
Higher timeframe, with the trend, or they generate noise.
Structure decides the stop. The zone only decides where to look.
Next: structure at the level these tools are actually applied.
