How to Read a Trading Chart

When you first open a trading chart, it can look like a screen full of moving candles, numbers, and lines.

But before you learn patterns or add indicators, you need to understand what those things actually represent.

A chart organizes market data. It lets you see where price traded, when it traded there, and how that activity changed over time.

Reading that record is a skill. Knowing what happens next is a different question.

In this lesson, we'll build a chart from the ground up. We'll use illustrative NQ futures prices, follow a candle as it forms, and see how the same trading activity looks on different time frames.

Start with the two directions on the screen.

On a standard price chart, the vertical axis shows price. Higher prices appear higher on the chart. Lower prices appear lower.

The horizontal axis shows time, moving from earlier activity on the left toward more recent activity on the right.

Those price numbers are market quotations. They are not automatically your profit or loss. As we covered earlier, the dollar result depends on the contract, its value per point, your position size, and your actual entry and exit.

Before reading anything else, check what you're looking at: the symbol and contract, the time frame, and the time zone.

A five-minute chart of one contract is not the same record as a one-minute chart of another contract. And a time marked nine thirty means little unless you know which time zone the chart uses.

Now let's build a candle.

We'll use a standard one-minute candlestick chart based on traded prices. Each completed candle summarizes one minute of activity using four prices: open, high, low, and close.

The open is the first traded price in that interval. The high is the highest. The low is the lowest. The close is the last traded price before that interval ends.

Imagine our minute begins with NQ trading at twenty thousand.

That becomes the open.

Price rises to twenty thousand and six, falls to nineteen thousand nine hundred ninety-eight, then finishes the minute at twenty thousand and four.

Our completed candle has an open of twenty thousand, a high of twenty thousand and six, a low of nineteen thousand nine hundred ninety-eight, and a close of twenty thousand and four.

The thick part of the candle is called the body. It runs between the open and the close.

The thin extensions are called wicks, or shadows. They reach to the high and low beyond the body. If an extreme is also at the edge of the body, there may be no visible wick on that side.

In our example, the close is above the open. That's commonly called a bullish candle, often shown in green.

If it closes below its open, it's commonly called a bearish candle, often shown in red.

Colors are settings. The relationship between the opening and closing prices is what matters.

And a green candle doesn't mean price rose for the entire minute. Our example fell below its open before closing higher.

It also doesn't mean the close is higher than the previous candle's close. The candle's color, in this example, compares its own close with its own open.

If the open and close are equal, the body becomes a line. If they're very close, it becomes small. You may hear traders call this a doji. That describes a shape. It doesn't guarantee a reversal.

There are also two different distances to notice.

Our candle's body spans four points, from twenty thousand to twenty thousand and four.

Its full range spans eight points, from nineteen thousand nine hundred ninety-eight to twenty thousand and six.

The body shows the difference between the open and close. The range shows the distance between the highest and lowest traded prices during the interval.

Now watch what happens while the candle is still forming.

The open stays fixed. The current price moves. The high can increase, and the low can decrease as new trades occur.

A candle can look bullish partway through the minute and finish bearish. A large body can shrink before the interval ends.

Until it closes, you're looking at a developing candle, not a finished one.

That distinction matters whenever a trading rule refers to a candle close. Crossing a price during the minute and closing beyond it are different events.

Next, change the time frame.

On our one-minute chart, five consecutive completed minutes produce five candles.

On a five-minute chart covering that same aligned interval, those trades are summarized in one candle.

Its open comes from the first trade in the interval. Its close comes from the last. Its high is the highest price across all five minutes, and its low is the lowest.

You don't average the five opening prices to find the new open. You don't average their closing prices to find the new close.

You're regrouping the same trading activity into a larger time window.

That means several red one-minute candles can appear inside a green five-minute candle. Price may fall during part of the interval and still finish above where the whole interval began.

The charts aren't disagreeing. They're summarizing different amounts of time.

A shorter time frame exposes more of the smaller movements. A longer time frame compresses them. Neither view automatically provides a better trading decision.

The time frame should fit the question you're asking and the rules you're evaluating. Changing it doesn't create an advantage by itself.

There's another limit to this summary.

A completed candle doesn't tell you the exact sequence of every trade inside it.

Return to our candle: open at twenty thousand, high at twenty thousand and six, low at nineteen thousand nine hundred ninety-eight, and close at twenty thousand and four.

Price could have reached the high before the low. Or it could have reached the low before the high. Both paths can produce the same finished candle.

That becomes important if a hypothetical trade's stop and target both fall within that candle's range. The candle alone may not establish which was reached first.

More detailed data can help resolve the sequence. A finished shape cannot supply information it doesn't contain.

You may also see a line chart instead of candles.

A common line chart connects each interval's closing price. That makes the overall path simpler to see, while leaving out the interval's high and low.

Different chart types organize information differently. For this lesson, we're using ordinary candles, not a transformed chart such as Heikin Ashi, whose displayed values are calculated differently.

Below the price chart, you'll often see volume bars.

For a futures contract, traded volume measures how many contracts changed hands during the period. A matched trade of one contract contributes one contract to volume, even though it has both a buyer and a seller.

If a one-minute volume bar shows five hundred, that means five hundred contracts traded during that minute in the data being displayed. It doesn't mean five hundred individual people traded.

Volume describes activity. It doesn't tell you that price must continue in one direction.

A green volume bar also doesn't mean all those contracts were bought without being sold. Every completed trade has both sides. On many basic charts, the volume bar simply follows the corresponding candle's direction or another chosen color setting.

Read the chart's settings before attaching a meaning to its colors.

Settings matter elsewhere, too.

Showing the full futures session can produce a different view from showing only selected daytime hours. A daily futures close may display an exchange settlement value rather than the final traded price, depending on the platform's settings.

A continuous futures chart combines successive contract months into a longer history. If historical prices are adjusted when the contract changes, that can change older displayed levels.

We'll cover contract months and rollover more fully later. For now, know whether you're studying a specific contract or a continuous series, and whether the data is adjusted.

Also check whether your feed is live or delayed. The latest candle on your screen may not represent the latest activity in the market.

And pay attention to the price scale. Zooming in can make the same move look dramatic. Zooming out can make it look small. Measure the points and time involved instead of relying on the shape alone.

Here's a simple routine for reading a chart.

First, identify the market and contract.

Second, check the chart type, time frame, session, time zone, and data status.

Third, read the actual prices. Separate the candle's body from its full range.

Fourth, distinguish a developing candle from a completed one.

Finally, separate the observation from the conclusion.

"Price closed above its open" is an observation.

"Therefore, the next candle will rise" is a claim that needs evidence.

A chart can help you describe movement, define conditions, and review what happened. It doesn't establish a profitable strategy simply because a pattern looks convincing afterward.

In the next lesson, we'll connect those price distances to a practical question: how much could a planned trade lose?

We'll bring together the entry, stop distance, contract value, and position size, while keeping the difference between planned risk and the actual outcome clear.