Glossary term
Candlestick
A candlestick is a price-chart element that shows an asset's open, high, low, and close for a chosen period.
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What Is a Candlestick?
A candlestick is a price-chart element that shows an asset's open, high, low, and close for a chosen period. Traders use candlesticks to read price movement, intraperiod range, and the relationship between opening and closing prices.
Each candle represents one time interval, such as one minute, one day, one week, or one month. A chart made of many candles can show trend, volatility, momentum, hesitation, and possible reversals more visually than a simple line chart.
Key Takeaways
- A candlestick shows open, high, low, and close prices for one period.
- The candle body shows the distance between the open and close.
- The wicks or shadows show the high and low reached during the period.
- Candlesticks are common in technical analysis, trading platforms, and market commentary.
- A candle pattern is context, not a guarantee of future price movement.
Parts of a Candlestick
Part | What it shows |
|---|---|
Body | The range between the open and close. |
Upper wick | The distance from the body to the period high. |
Lower wick | The distance from the body to the period low. |
Color or fill | Whether the close was above or below the open, depending on chart settings. |
If the close is above the open, the candle is often shown as green, white, or hollow. If the close is below the open, it is often shown as red, black, or filled. The exact color convention depends on the charting platform.
What Traders Read
A large body can show strong directional movement during the period. A small body can show indecision or balance between buyers and sellers. Long wicks can show rejection of higher or lower prices, especially when they appear near a known support or resistance area.
Patterns such as doji, hammer, engulfing candles, morning stars, and shooting stars are attempts to interpret the relationship between price range and close. The names can be colorful, but the underlying question is practical: did buyers or sellers control the period, and did that control change near an important level?
Context Beats Pattern Names
A candlestick does not mean much in isolation. A hammer-shaped candle after a long decline may carry different information than the same shape in the middle of a quiet range. Volume, trend, volatility, support and resistance, market news, and time frame all affect interpretation.
Short time frames can also be noisy. A one-minute candle may reflect order-flow friction rather than a durable shift in demand. A weekly candle may reveal a broader struggle between buyers and sellers but arrives too slowly for intraday decisions.
Candlestick Versus Line Chart
A line chart usually connects closing prices. That makes trend easier to see but hides the intraperiod path. A candlestick chart shows the range and open-close relationship for each period, which can help traders see volatility and sentiment shifts. The tradeoff is visual clutter. Too many candles, indicators, and pattern labels can make a chart look more precise than it is.
Candlesticks can also help separate closing-price movement from intraperiod stress. A stock that closes unchanged may still have traded through a wide range, showing volatility that a line chart would hide. That can matter for stop placement, risk sizing, and judging whether a breakout attempt was accepted or rejected.
The same candle can also look different depending on whether the chart uses regular trading hours, extended-hours trading, adjusted data, or a different time zone. Clean interpretation starts with knowing exactly what data the candle represents.
The Bottom Line
A candlestick is a compact visual record of price action for one period. It can help traders read momentum, range, and market pressure, but it should be interpreted with trend, volume, liquidity, and risk controls rather than treated as a standalone prediction.