Order Block vs Support and Resistance
Order blocks mark the last candle before a decisive move, on the argument that unfilled orders remain there. Support and resistance marks a level price has already reacted to more than once, which makes it visible to everybody looking at the chart.
Two ways of marking a place on a chart where price might react. One is the oldest idea in technical analysis and the other arrived with smart-money vocabulary, and they are more alike than either camp usually admits.
What each one is
An order block is the last opposing candle before a decisive move, marked on the argument that orders were left unfilled there. Order block covers the definition.
Support and resistance is a level price has already reacted to, usually more than once, drawn from what the chart has visibly done. Support and resistance covers it.
Both are locations rather than signals. Neither tells you to do anything when price arrives; they tell you where to be paying attention.
Where they differ
How precise the area is. An order block is a single candle’s range. A support level is usually a band covering several touches, which is vaguer and easier to be roughly right about.
Who else can see it. A prominent swing high or a round number is visible to everybody. Your order block, identified with your particular rule, is visible to you.
When it can be marked. A support level exists as soon as price has bounced there twice. An order block is only identifiable after the move that made it decisive, which is a form of hindsight.
What each claims. Support claims price has reacted here before. An order block claims institutional orders remain unfilled, which is an assertion about something you cannot observe.
Where they agree
Both need to be marked before price arrives. A level drawn after the reaction describes history, and both ideas look flawless when identified that way.
Both are locations, not entries. Something has to happen at the area before there is a trade, and neither concept supplies the something.
Both are frequently ignored. On this site’s shared series direction runs average 2.01 bars with a longest of 11, and price passes through marked areas constantly.
And neither supplies a stop. The ninetieth percentile bar range here is 1.101 and the largest single bar was 2.338, which is what a stop just beyond either area is up against.
Which one to use
Use support and resistance as your primary levels. A line many people watch is a line many people act at, and that shared attention is a real mechanism rather than an inference.
Use order blocks when you need a tighter area. A single candle’s range gives a much closer invalidation than a band, which matters when the target is small relative to the stop.
Use order blocks only with a written rule. Which candle, what counts as decisive, how far the move must travel — without those three answers you are marking them after the outcome.
And when the two disagree, take the one you defined first. Whichever area was on the chart before price arrived is the one your record can actually be built from.
Why visibility is a real mechanism
Because orders sit where people can see. A level thousands of traders have drawn attracts actual resting orders, and that is why obvious levels behave differently from private ones.
And because the mechanism is checkable. You can see the swing high on the chart. You cannot see the unfilled institutional orders an order block is premised on.
What a written rule has to contain
Which candle qualifies. The last opposing one before the move, on which timeframe, and whether a wick counts. Two people with different answers mark different blocks on the same chart.
What counts as decisive. A move of how many bars, or how far. On this site’s shared series the median bar range is 0.493 and the ninetieth percentile is 1.101, which is the kind of figure that sentence needs.
Whether the area expires. An untouched block from three months ago is either still valid or it is not, and deciding that after price approaches it is deciding it by outcome.
And what invalidates it. A close through, a wick through, or a certain distance beyond — that sentence is what turns a marked area into a trade you can size.
The original data
Of the 24,971 unique videos in research/search-study-corpus.jsonl, no title compares these two
directly — this pair is constructed from two subjects the corpus covers separately. Separately, order
blocks appear in 391 titles at a median of 2,786 across 289 channels, and support and resistance in 145
at a median of 30,434 across 112. The counts come from site/corpus_count.py.
391 videos on order blocks at 2,786 against 145 on support and resistance at 30,434. Nearly three times the coverage and a tenth of the audience per video — the newer vocabulary is made far more often and watched far less, one of the widest gaps of that kind measured on this site.
The answer to the question on that chart is the one that was marked first. A level drawn last week is evidence; one identified this morning because price is heading toward it is not — and only your own notes can tell the two apart.
When it fails
The failure is marking order blocks after the move and reviewing them as though they had been marked before, and every chart then shows the concept working. Scrolling back, the last opposing candle before each big move is obvious, and price frequently returns to it. What is invisible in review is the far larger number of candles that met the same description and led nowhere, because nothing marked them. The apparent hit rate is a selection effect and the live hit rate is not the same number.
The second failure is drawing support after the bounce. Everything works backwards.
A third is having no invalidation sentence. The area cannot be sized.
A fourth is marking too many areas. A crowded chart has no levels.
A fifth is expecting a reaction at every visit. Most are passed through.
And a sixth is assuming unfilled orders are there. That is inferred, not observed.
Related
Order block covers the single-candle area. Support and resistance covers the visible level. And supply and demand covers the zone-based version of the same idea.
The self-fulfilling part is what people miss. A round number or an obvious swing high is a level thousands of traders can see, so orders actually sit there. An order block you identified with your own rule is a level with your orders on it and nobody else’s.
— Michael Whitman
This page is educational, not financial advice. Test every idea on your own charts before risking money.