Markets don't just move up or down; they breathe. They expand with energy and then contract to gather strength for the next move. This cyclical rhythm of expansion and contraction is the engine of price movement. Candle Range Theory (CRT) provides a framework for reading this rhythm, allowing us to identify the significant ranges where trading decisions are made.

Forget trying to predict the future. Instead, focus on the structure the market is building right now. The core of CRT is understanding that after a period of consolidation (contraction), the market will make a decisive move (expansion). This expansion sets the boundaries for the next phase of trading. Our job is to identify these boundaries and wait for the market to show its hand.

Every significant price move begins with a single candle: the expansion candle. This is the catalyst that breaks the market out of a period of low volatility. Think of it as a sudden burst of energy that creates a new playing field. An expansion candle is typically much larger than the candles that precede it, showing a clear increase in momentum and commitment from buyers or sellers.

This isn't random noise. A true expansion candle represents a significant shift in market dynamics, often driven by large orders. These are the institutional footprints that CRT helps us follow. By identifying this candle, we are identifying the new, valid range that price is likely to respect in the near term.

Once the expansion candle has closed, its high and low define the new Dealing Range. This is the most critical concept. The market has shown its hand and established the new boundaries of the fight between buyers and sellers. All subsequent price action is now considered 'internal' to this range until a new, valid expansion occurs.

After the energy of the expansion, the market enters a contraction phase. Volatility decreases, and price action becomes choppier and less directional. This is the market 'breathing in', absorbing the prior move and building energy for the next one.

During contraction, price will trade inside the Dealing Range established by the expansion candle. This internal price action can be complex, but it is all contained within the larger structure. Think of it as noise within a clear signal. The key is to not get caught up in the small, erratic moves. Instead, watch the boundaries of the Dealing Range. The real opportunity will come when price is ready to expand out of this range once again.

This cycle of expansion and contraction forms the basis of all market movement. By learning to identify the expansion candle and the Dealing Range it creates, you can move from chasing price to understanding the structure that drives it.