Read a chart before interpreting it

A chart is a visual record of selected price data. Before interpreting its shape, identify what was recorded, where it came from and how the periods were grouped. EUR/USD on a retail quote feed, a currency CFD and a listed future can be different records even if their names look similar. A screenshot without its labels leaves important questions unanswered.

The horizontal axis normally shows time or an ordered sequence; the vertical axis shows price. For GBP/USD, a price of 1.2500 means US$1.25 per pound under that pair convention. Check the symbol, product, feed, quote side, date, time zone, timeframe and whether the last candle is complete. Then read the visible scale rather than guessing from the slope.

You are learning observation first. Saying “the selected closing prices rose” is a description of the data. Saying “the next price must rise” adds a prediction the chart does not supply. Careful chart reading means keeping those two statements separate.

A line chart connects one selected price for each period, often the close. It makes the broad sequence easy to follow, but does not retain every period’s high and low. If the line uses a midpoint, bid or another measure, name that measure. “Line chart” describes the display, not a guarantee that every platform chose the same input.

An OHLC bar records the open, high, low and close for one defined period. In a conventional bar, the vertical line spans low to high, the left tick marks the open and the right tick marks the close. A candlestick displays the same four prices through a body and wicks. Changing between bar and candle views of the same feed does not add new transactions to the record.

Candlestick charting comes from Japanese charting traditions. Steve Nison helped introduce these methods to Western readers; his own biography describes that role. Popularising a method is different from inventing every version of it. For this course, the useful starting point is the four prices it records, rather than a story that promises special predictive power.

The open is the first recorded price in the chosen interval; the close is the last recorded price for that interval. The high is its maximum and the low its minimum. These values belong to a specific feed and price basis. A quoted high is not automatically a price at which your order could have filled.

The candle body lies between open and close. An upper wick connects the top of the body to the high, and a lower wick connects the bottom of the body to the low. A close above the open is often shown in an up colour and a close below it in a down colour. Platform colours and special candle modes can differ, so read the legend.

A candle whose open and close are equal or very close is often described as a doji. “Very close” needs a tolerance and context. It does not mean price did nothing: a small body can sit within a large high-to-low range. A large body or long wick describes the selected period; it does not independently reveal participants’ identities or prove why they acted.

Use a hypothetical GBP/USD candle with open 1.2500, high 1.2550, low 1.2470 and close 1.2520. Under the usual 0.0001 pip convention, the body is |1.2520 − 1.2500| = 0.0020, or 20 pips. The full range is 1.2550 − 1.2470 = 0.0080, or 80 pips.

The upper wick is 1.2550 minus the higher of open and close, 1.2520: 30 pips. The lower wick is the lower of open and close, 1.2500, minus 1.2470: another 30 pips. For a down candle, the body endpoints reverse, but use the higher endpoint for the upper wick and the lower endpoint for the lower wick.

A 20-pip body is not automatically a 20-pip trading profit. There is no recorded entry, exit, direction or size in that description. The candle’s range is also not a loss limit. If you want to translate a pip distance into money, state the hypothetical contract size and account currency separately.

A timeframe sets the window summarised by each time-based bar. A five-minute candle covers a shorter window than a one-hour candle; a daily candle covers the provider’s defined trading day. Lower timeframes expose more recorded detail, while higher timeframes group it. Neither view is automatically more truthful for every question.

To combine complete consecutive bars from the same feed and compatible boundaries, take the first open, the highest high, the lowest low and the last close. Do not average the opens and closes to produce an ordinary larger candle. Do not add high prices together. The same underlying moves can look busy in the shorter view and simple in the longer one.

A higher-timeframe up candle can contain several down candles. A brief fall can be large on a one-minute screen and minor within a week. Identify the window before using words such as “strong” or “small.” There is no single timeframe that removes noise, execution costs or uncertainty.

One platform may plot bid candles while another uses ask, midpoint or last-traded prices. On some OTC products there is no exchange last-trade series. Know the platform’s definition. For a long position, buying uses an available ask-side fill and closing by selling uses bid; a bid candle alone does not supply both sides of that transaction.

Daily cut-offs and server time zones affect which observations enter each candle. A provider starting its trading day at a different hour can show another candle shape from overlapping data. Daylight-saving changes, holidays and missing observations need attention. A timestamp without its date and zone is incomplete evidence.

The current candle is still forming until the interval ends under the feed’s rules. Its close, high, low and colour can change as new observations arrive. A close-based rule cannot be confirmed using a candle that has not closed. Mark whether a saved example is complete or still forming.

Also examine chart settings. A compressed price axis can make a movement look gentle; zooming in vertically can make the same movement look dramatic. Alternative candles such as Heikin-Ashi transform price inputs and should not be mistaken for unmodified OHLC. Use ordinary bars or candles for the foundational exercises.

Open, high, low and close do not say whether the high came before the low. Our invented GBP/USD candle could follow open → high → low → close or open → low → high → close. Both paths match its OHLC values. Many other paths match too.

Imagine a hypothetical long entry at 1.2500 with intended stop trigger 1.2480 and target 1.2540. Both levels lie inside the candle’s recorded range. Daily OHLC alone cannot establish which was reached first, whether the entry was active at the relevant time, or which executable side qualified. Declaring a win from that candle would add information you do not have.

Finer historical data may help investigate sequence, but has its own quote basis, missing ticks and execution limits. Even a complete price path does not prove the order would fill at the planned price. Keep an ambiguous observation marked ambiguous rather than choosing the favourable path.

A worker in the United Kingdom saves the hypothetical GBP/USD candle and labels the product, source, daily interval, time zone and price basis. They write O = 1.2500, H = 1.2550, L = 1.2470 and C = 1.2520, all measured in US dollars per pound. The close is 20 pips above the open, within an 80-pip range.

They switch to an hourly chart to investigate the day, making sure the boundaries and feed match. The extra candles can help describe when recorded moves occurred, but do not transform the daily candle into a reason to trade. The learner writes two separate notes: “what the data show” and “what remains unknown.”

The first note says that this feed recorded the listed four values in the selected window. The second says that the daily record alone does not establish the path, the cause, the global order flow or the outcome of an imagined entry. This is a more accurate reading than saying “buyers won, so tomorrow must rise.”

Finish by explaining the record to someone who has never traded. Start with the units and the chosen window, then the four values, then the limits. If your explanation requires a prediction to make sense, return to the observation. This is the base for later chart analysis, not a trading signal.

Educational observations and hypothetical data only. Chart shapes, volume, landmarks and calculators do not guarantee future prices, execution or profits. Leveraged Forex can cause substantial losses; no live order is needed for these exercises.