Almost every beginner mistake comes from one wrong assumption: that price is a line drifting up and down. It is not. Price is the record of a negotiation, and it only moves when somebody is willing to pay a different number than the last person did.
A market is an auction, not a graph
At any instant there is a highest price a buyer will pay (the bid) and a lowest price a seller will accept (the ask). The gap between them is the spread. A trade happens when one side crosses the gap and accepts the other's number.
Price moves up when buyers run out of sellers at the current price and have to bid higher to get filled. It moves down for the mirror reason. That is the entire mechanism. Everything else - patterns, indicators, structure - is a way of guessing where that will next happen.
Why it moves in bursts
Orders are not spread evenly. They cluster: at round numbers, at yesterday's high, under an obvious low where everyone has parked a stop. Between clusters there is almost nothing, so price crosses that empty space fast and then stalls when it hits the next one.
This is why charts look the way they do - long quiet stretches punctuated by sharp moves. The quiet is price sitting inside a cluster. The sharp move is price crossing a gap between two.
What a candle is actually telling you
A candle is four numbers over a fixed period: where the negotiation opened, the highest anyone paid, the lowest anyone accepted, and where it stood at the close.
- A long body means one side kept having to cross the spread. Sustained pressure.
- A long wick means price went somewhere and was rejected. Someone was waiting there in size.
- A small body with wicks both sides means both sides were active and neither won. Indecision, not a signal.
A wick is the most informative part of a candle and the part beginners ignore. It marks a price the market tested and refused.
Liquidity: the word that explains the rest
Liquidity is simply how many orders are available near the current price. High liquidity means you can trade size without moving the price much. Low liquidity means even a modest order pushes it a long way.
Liquidity is not constant. It drains at the daily rollover, at holidays, and - importantly - in the seconds around a scheduled news release. That is why a stop can fill far from where you set it during those windows: there was nothing in between.
If you understand only one thing from this lesson, make it this: your stop is not a promise about price, it is an instruction to trade at whatever is available. When there is nothing available, it fills badly. That is not your broker cheating you.
What to take forward
- 1.Price moves because orders run out, not because a line wants to go somewhere.
- 2.Orders cluster at obvious prices. The gaps between clusters are crossed fast.
- 3.Wicks mark rejection. They tell you where somebody was defending.
- 4.Thin liquidity turns a normal stop into a bad fill. Size, do not hope.