OHLC bar chart

An OHLC bar chart (open, high, low, close) shows the same four prices as a candlestick chart but uses a different visual representation. Instead of a rectangular body with wicks, each period is displayed as a simple vertical line with two short horizontal ticks: the left tick marks the open, the right tick marks the close. The top of the line is the high; the bottom is the low. OHLC bars are less widely used than candlesticks in modern technical analysis, but they remain popular in some communities and offer a clean, uncluttered alternative view of price action.

For candlesticks, the dominant chart type, see candlestick chart. Other alternatives include line charts and renko charts.

OHLC bar chart — key facts

OHLC bars: a clean alternative to candlesticks, showing the same four prices without color or body emphasis.


What it shows	Open, high, low, close per period
Visual format	Vertical line with left and right ticks
Top of line	Period’s high price
Bottom of line	Period’s low price
Left tick	Opening price
Right tick	Closing price
Colour	Typically monochrome; less useful for direction at a glance
Time axis	Horizontal (left to right)
Price axis	Vertical (bottom to top)
Advantage	Uncluttered, clear high/low range
Disadvantage	Harder to see direction; less visually intuitive

How OHLC bars work

Each vertical bar represents one time period (minute, hour, day, etc.). The top of the bar marks the period’s high price; the bottom marks the low. Two small horizontal ticks protrude from the vertical line: the left tick sits at the opening price, the right tick at the closing price.

This design efficiently conveys the four critical prices in a compact form. If the opening is above the closing, the left tick will be above the right tick, giving a visual hint of the close direction, though less dramatically than a candle’s color. If the opening is below the closing, the left tick is below the right tick.

Advantages of OHLC bars

Clarity of high and low: The top and bottom of the bar make the high and low prices immediately obvious. There is no ambiguity about the range of the period—traders can see it at a glance.

Uncluttered appearance: OHLC bars tend to be cleaner and less visually heavy than candlesticks, especially on crowded charts with many periods visible. This can make it easier to see long-term patterns.

Neutral colour: Because OHLC bars do not use colour to indicate direction, they can feel more objective to some traders. There is no psychological bias from seeing green or red.

Simplicity: The concept is extremely simple: a line with ticks. There are no nuances about wick size, body color, or visual gaps—just the four prices plotted directly.

Disadvantages relative to candlesticks

Harder to read direction: A trader quickly glancing at a candlestick chart can instantly see whether each candle was bullish (green) or bearish (red). OHLC bars require a moment’s extra thought: which tick is higher?

Less intuitive: Candlesticks use the metaphor of a “body” with wicks, which maps to human intuition about strength and rejection. OHLC bars are more abstract.

Pattern recognition: Many candlestick patterns (hammers, engulfings, morning stars, etc.) are defined by visual characteristics like wick size and body size. OHLC bars can display the same information, but the patterns are less visually striking and take more effort to recognize.

Wick distinction lost: A candlestick’s long lower wick is visually distinct (a clear sign of buyers defending a level). An OHLC bar’s equivalent—a large distance from the low to the opening price—is less immediately obvious.

When OHLC bars are used

OHLC bars are most common in certain niches: some older technical analysis literature, some currency trading platforms, and some charting software. They also appear in educational materials, where simplicity is valued. A few traders prefer them for the clarity of the high/low and because they feel the lack of color removes psychological bias.

However, since the advent of candlestick charts—which carry the same information but display it more intuitively—OHLC bars have become a secondary option. Most modern platforms offer candlesticks as the default and OHLC bars as an alternative, rarely used.

Information content is identical

An OHLC bar and a candlestick for the same period contain exactly the same information: open, high, low, close. The only difference is presentation. A trader who prefers candlesticks for visual clarity and a trader who prefers OHLC bars for their uncluttered feel are viewing the same data. The patterns and signals that emerge should be the same, though the candlestick trader will see them more quickly.

OHLC bars and price action analysis

Traders who analyze price action (the movement of prices without indicators) might find value in OHLC bars for certain analyses. The clear marking of the high and low without the “weight” of a colored body can make certain concepts easier to teach—for example, how price tends to reject at previous highs (the top of old OHLC bars serves as an obvious resistance reference point).

Comparison to candlesticks

Feature	Candlestick	OHLC Bar
Open price	Bottom of body (if red) or top (if green)	Left tick
Close price	Top of body (if green) or bottom (if red)	Right tick
High price	Top of upper wick	Top of bar
Low price	Bottom of lower wick	Bottom of bar
Direction at a glance	Instant (color)	Requires thought
Visual pattern recognition	Intuitive	Less intuitive
Uncluttered appearance	Moderate	Higher

Comparison to line charts

A line chart shows only closing prices, connected by a line. An OHLC bar shows the full range (high and low) plus opens, making it far richer in information. For serious technical analysis, OHLC bars are superior to line charts.