Why a Broken Floor Becomes a Ceiling
핵심 요점
- A level is a memory of who is trapped, not a property of the price. That is why broken support becomes resistance.
- Levels are zones, not lines. Drawing one line makes most real touches look like failures and puts stops in the worst possible place.
- What makes a level significant is touches, time, and volume — not how neatly it fits the line you drew.
학습 경로Read a price chart from scratch11단계 중 4단계
참고 도서 Technical Analysis of the Financial Markets — John J. Murphy, 1999
The flip, and why it is not mysterious
Every price level is a place where a specific group of people bought or sold. That group is still there after the price moves.
This is the mechanism, and it is worth more than the pattern. Once you see a level as a population of trapped positions, you can reason about whether a particular line will matter — which the pattern alone never lets you do.
Levels are zones
If you need a single price for a level, you have already introduced an error you will pay for at the stop.
Drawing a single line creates two problems at once. Touches that miss by a few cents look like failed tests, so you distrust a level that is working; and stops placed just beyond the line sit inside the zone, where ordinary noise removes them before anything is decided.
Which levels are worth drawing
The volume row is the one beginners under-use and it follows directly from the mechanism. A price where very little traded has almost nobody trapped at it, so there is no population to produce the reaction. A price where enormous volume changed hands has a large one.
Lines that will not hold
- Drawn through one previous touch
- Round numbers with no history
- Fitted after the fact to explain a move
Levels with a population behind them
- Several touches over months
- Heavy volume traded at the price
- A sharp move away when it broke
The last item in the second column is a good tiebreaker. A level that price left violently had strong agreement behind it; a level price drifted away from had little, and it is unlikely to produce much when revisited.
Using this without over-drawing
The failure mode with support and resistance is not that it does not work — it is that a chart with fifteen lines on it will always have price near one of them, which makes the tool unfalsifiable.
- Mark no more than three or four zones on a chart. If you need more, you are on too short a timeframe.
- Use the higher timeframe to find them, then drop down to trade. Weekly levels have larger populations behind them.
- Write down what a break means before it happens, including the price where you would accept being wrong.
- When a level breaks and holds from the other side, that is confirmation the population flipped — the most reliable version of this signal.
Combined with a candlestick reading at the same price, this becomes two independent pieces of evidence rather than one — see candlestick reversal patterns for that pairing.
이번 주에 해볼 것
- On a weekly chart, mark the three clearest zones from the past two years. Use bands, not lines.
- For each, count the touches and check the volume traded at that price.
- Find one level that broke and was later tested from the other side. Note what happened.
- Take a trade idea you are considering and write where the stop goes relative to the whole zone.
자주 묻는 질문
Why does support become resistance?
Because the people who bought at that level and watched price fall want to exit at break-even. When price returns to it, their selling supplies the pressure that stops the advance, turning the old floor into a ceiling.
Should support and resistance be a line or a zone?
A zone. Real touches occur at slightly different prices, so a single line makes working levels look like failures and encourages stops placed inside the band where ordinary noise removes them.
What makes a support level strong?
The number of times it has been touched, how long it has held, how much volume traded at that price, and how sharply price moved away when it broke. Volume matters most because it indicates how many positions are trapped there.
How do I know if a support level has really broken?
Price should move clearly through the whole zone rather than dipping into it, and ideally the level should then hold as resistance on a subsequent test. That retest from the other side is the most reliable confirmation available.
How many support and resistance levels should I draw?
Three or four on a chart at most. Drawing many lines guarantees price is always near one of them, which makes the tool impossible to be wrong with and therefore useless for decisions.