Bar Chart Explained: OHLC Price Data Visualized
Learn what a bar chart is, how it displays open, high, low and close prices, and how it compares to line and candlestick charts.
- 7 min read
- For beginners
- Educational
- Bài học 3 trên 6
The bar chart provides more detail than the line chart covered in the previous lesson, displaying the full open-high-low-close (OHLC) price data for each period. This guide explains its construction.
This is general educational content describing a standard chart type.
What Is a Bar Chart?
A bar chart represents each time period as a single vertical line (the bar), spanning from the period's low to its high price. A small horizontal tick extending to the left of the bar marks the opening price, and a small horizontal tick extending to the right marks the closing price.
What a Bar Chart Shows
Unlike a line chart, a bar chart displays all four key price points for each period: open, high, low, and close (often referred to as OHLC data). This provides significantly more detail about intra-period price behaviour, including the full range of price movement, not just the closing level.
Bar Chart vs Candlestick Chart
A bar chart displays the same underlying OHLC data as a Japanese candlestick chart (covered in the next lesson), but presents it differently — using tick marks rather than a filled or hollow body. Some traders prefer the bar chart's appearance, while candlestick charts have become more widely used in retail trading, partly due to their more immediately visible distinction between bullish and bearish periods through color and body shape.
Typical Uses for a Bar Chart
Bar charts are commonly used by traders who want full OHLC detail but prefer a less visually dense presentation than candlesticks, or who are accustomed to this chart style from certain markets or trading platforms where it has traditionally been more common.
Summary
A bar chart displays full open-high-low-close (OHLC) price data for each period, using a vertical bar with tick marks for open and close, providing more detail than a line chart. It shows the same underlying data as a Japanese candlestick chart, but with a different, less visually dense presentation style.
Frequently Asked Questions
It shows open, high, low, and close (OHLC) price data for each period, using a vertical bar with small tick marks indicating open and close.
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