Charts & Technical Analysis · 12 min read

Candlesticks and trends

How to read candlestick charts, identify market trends, and recognize the key support and resistance levels that influence price movement.

Why candlesticks

Candlestick charts are one of the most widely used tools in technical analysis. They help investors and traders visualize how prices have moved over time and provide clues about the battle between buyers and sellers.

While a single candlestick can reveal important information about market sentiment, the most valuable insights come from viewing candles within the broader context of a trend.

Understanding a candlestick

A candlestick represents the price action for a specific period of time. The time period depends on the chart you are viewing:

  • 1-minute chart: one candle represents one minute.
  • 5-minute chart: one candle represents five minutes.
  • Hourly chart: one candle represents one hour.
  • Daily chart: one candle represents one trading day.
  • Weekly chart: one candle represents one week.

Four key pieces of information

Each candlestick contains four key pieces of information:

  • Open: where the period began.
  • High: the highest price reached.
  • Low: the lowest price reached.
  • Close: where the period ended.

Anatomy of a candlestick

The thick middle section is called the body. The thin lines extending above and below the body are called wicks (or shadows).

  • The upper wick shows how high price traded.
  • The lower wick shows how low price traded.
  • The body shows the distance between the open and close.

Bullish and bearish candles

  • Bullish (green) candle: closes above its opening price. This indicates buyers were stronger than sellers during that period.
  • Bearish (red) candle: closes below its opening price. This indicates sellers were stronger than buyers during that period.

What candles can tell you: long body

Candles provide insight into market psychology. A candle with a large body suggests strong conviction. The longer the body, the more dominant one side was during that period.

  • Large bullish body = strong buying pressure.
  • Large bearish body = strong selling pressure.

Long wick

A long wick indicates that price moved significantly in one direction but was rejected before the close. Long wicks often signal areas where market participants disagreed about value. For example:

  • A long upper wick may show sellers pushed back against higher prices.
  • A long lower wick may show buyers stepped in after a decline.

Small body and the doji

A small body suggests limited movement between the open and close. Neither buyers nor sellers were able to gain clear control.

A doji occurs when the open and close are nearly the same price. It reflects indecision in the market. After a strong trend, a doji can sometimes indicate that momentum is weakening and a reversal or pause may be possible.

Understanding trends

Price does not move randomly all the time. Markets tend to spend extended periods moving upward, downward or sideways. Learning to identify the prevailing trend is one of the most important skills in chart analysis.

Uptrend

An uptrend is characterized by higher highs and higher lows. Each rally moves above the previous high, while each pullback stays above the previous low. This pattern suggests buyers are consistently willing to pay higher prices. For example:

  • Low: $100
  • High: $120
  • Next low: $110
  • Next high: $130

Reading the uptrend example

The sequence of rising highs and lows indicates an uptrend.

Downtrend

A downtrend is characterized by lower highs and lower lows. Each bounce fails below the previous high, while each decline pushes below the previous low. This pattern suggests sellers remain in control. For example:

  • High: $150
  • Low: $130
  • Next high: $140
  • Next low: $120

Reading the downtrend example

The sequence of falling highs and lows signals a downtrend.

Range-bound market

A range occurs when price moves sideways between support and resistance. Instead of creating higher highs or lower lows, the stock repeatedly bounces between:

  • A lower boundary (support)
  • An upper boundary (resistance)

Ranges and consolidation

Ranges often represent periods of consolidation before a larger move eventually develops.

Support and resistance

Support and resistance are among the most important concepts in technical analysis. They represent price areas where significant buying or selling activity has repeatedly occurred.

Support

Support is a price zone where buyers have historically stepped in and prevented further declines. Support is not a precise price but usually a range of prices. When price approaches support:

  • Buyers often become more active.
  • Demand may increase.
  • Downward momentum may slow or reverse.

Resistance

Resistance is a price zone where sellers have historically become more active. Like support, resistance is usually a zone rather than a single exact level. When price approaches resistance:

  • Selling pressure tends to increase.
  • Buyers may become hesitant.
  • Upward momentum may slow or reverse.

The support-resistance flip

One of the most common market behaviors occurs when a major support or resistance level is broken.

When price breaks decisively above resistance and remains above it, that former resistance level often becomes support. The reasoning is simple:

  • Traders who missed the breakout may want to buy on a pullback.
  • Previous sellers may now become buyers.

Support becomes resistance

Similarly, when support fails and price breaks lower, that former support level often acts as resistance in the future. This concept is known as a role reversal or support-resistance flip.

Trend strength and volume

Price trends become more meaningful when supported by volume. Volume helps confirm whether a move is attracting broad market participation. Generally:

  • Rising prices on increasing volume suggest strong buying interest.
  • Falling prices on increasing volume suggest strong selling pressure.
  • Breakouts with high volume are often viewed as more significant than breakouts with low volume.

Putting it all together

Candlesticks show what happened during a specific period, while trends reveal the broader direction of the market. When analyzing a chart, ask yourself:

  • Is the stock in an uptrend, downtrend or range?
  • Where are the key support and resistance levels?
  • Are buyers or sellers showing stronger conviction?
  • Is volume confirming the move?
  • What is the larger trend telling me beyond the latest candle?

The whole story

A single candlestick rarely tells the whole story. The most reliable insights come from combining candlesticks, trends, support and resistance, and volume to understand the ongoing relationship between buyers and sellers.

Check your understanding

Answer 2 of 3 correctly to complete this lesson.

  1. 1. What does the body of a candlestick span?
  2. 2. Which sequence defines an uptrend?
  3. 3. When price closes decisively through resistance, that level often…
Answer every question to continue.

Unfamiliar word? Look it up in the Glossary.

Model output for education and research — not financial advice or a personal recommendation; your decisions are yours. Always do your own research and manage your risk.