What is an A-Share Candlestick Chart / Core Concepts

The candlestick chart was originally created by Japanese rice merchant Munehisa Homma in the 18th century and later introduced to the West by Steve Nison. Each candlestick contains four prices: open, close, high, and low. A bullish candle (close > open) is typically represented in red or hollow, while a bearish candle (close < open) is green or solid. In our A-Share Candlestick Chart tool, we display standardized candlestick data for stocks listed on the Shanghai and Shenzhen exchanges. By default, it uses forward-adjusted prices to eliminate the impact of dividends and stock splits on price continuity. The price change formula is: Price Change % = (Today's Close − Previous Close) / Previous Close × 100%.

How to Use This Tool / Step-by-Step Guide

Open the A-Share Candlestick Chart tool above, and you will see three core operation areas:

Enter Stock Code: Type a 6-digit A-share code (e.g., 600519) or Pinyin initials (e.g., gzmt) in the top search box, and the dropdown will match it in real-time.
Select Timeframe: Click the Daily, Weekly, or Monthly buttons to switch the chart timeframe (Daily is the default).
Set Date Range: Choose the start and end dates in the date picker (can go as far back as the IPO date).
Click the "Query" button. The chart area on the right will render the candlestick chart, and the list below will display the daily open, close, high, low, trading volume, turnover, and price change percentage.
To adjust the price adjustment type, click the "Adjustment" dropdown menu and select "Forward Adjusted", "Backward Adjusted", or "Unadjusted".

Complete Example / Practical Steps

Let's take querying the daily candlestick chart of Kweichow Moutai (600519) for the past 30 trading days as an example:

Enter 600519 in the code box, select the Daily timeframe, and set the date range from 2024-07-01 to 2024-08-01.
After clicking "Query", the chart area will generate 30 candlesticks. The body color of each candlestick represents the day's price movement: red for bullish (up) and green for bearish (down).
Hover your mouse over the last candlestick (2024-07-31), and the tooltip will show: Open 1380.00, Close 1395.50, High 1402.00, Low 1375.00, Price Change +1.12%.
The data table below synchronously displays these values, showing a trading volume of 23,500 lots for the day.

Interpretation: The closing price for the day is higher than the opening price, forming a bullish candle. The 1.12% increase indicates a mild uptrend. The trading volume has expanded compared to the 5-day average (about 18,000 lots), suggesting increased short-term capital participation.

More Examples / Multi-Scenario Comparison

Comparative Example: Pattern Differences Across Timeframes

Continuing from the previous example, switch the timeframe to Weekly and set the date range from 2024-01-01 to 2024-08-01. A weekly candlestick is generated from the open price of the first trading day of the week, the close price of the last trading day, and the highest and lowest prices of the entire week.
You will see about 30 weekly candlesticks in the chart. In February 2024, a bearish candle with a long lower shadow appeared (Low 1285.00, Close 1360.00), indicating that the price dropped significantly during the week but was pushed back up by buying pressure. The bullish candles in the following weeks confirmed that the support was effective.
Compared to the daily chart for the same time window (the 2nd week of February), the daily chart shows daily fluctuations, while the weekly chart filters out intraday noise, making it more suitable for judging medium-term trends.

How to Interpret Results / Meaning of Values

Candlesticks themselves do not provide buy or sell signals, but they can help gauge market sentiment:

Feature	Common Interpretation
Consecutive bullish candles with expanding volume	Strong bullish momentum, high probability of trend continuation
Bullish or bearish candle with a long upper shadow	Heavy selling pressure above, possible short-term top
Bearish candle with a long lower shadow	Strong support below, possible reversal
Doji (Open ≈ Close)	Balance between bulls and bears, requires subsequent confirmation
Daily price change > 5% with heavy volume	Extreme sentiment, beware of short-term pullbacks

Note: The win rate of a single candlestick signal is limited. It should be comprehensively judged in combination with trendlines, moving averages, MACD, and other technical indicators. The price changes and historical data provided by this tool are for reference only and do not constitute trading advice.

Common Mistakes / Pitfalls to Avoid

Forgetting to adjust prices: When viewing long-term charts, selecting "Unadjusted" will cause price gaps due to dividends and stock splits, misleading trend analysis. It is recommended to use forward-adjusted prices by default.
Confusing timeframes: Using daily charts to judge medium-to-long-term trends, or using weekly charts for short-term trading, will lead to deviations. The chosen timeframe should match your holding period.
Ignoring trading volume: Focusing solely on candlestick patterns while ignoring trading volume can easily lead to misjudging the validity of a signal. Our tool's data table synchronously displays trading volume; please cross-reference it.
Blank spaces on suspension days: Candlesticks will not be displayed during stock suspension periods, creating gaps on the timeline. Do not mistake this for missing data.
Incorrect price change baseline: Daily price changes are based on the previous day's close, while weekly price changes are based on the previous week's close. In our tool, the corresponding price change for each candlestick is already calculated in the data column and can be used directly.

Frequently Asked Questions (FAQ)

What does a "Doji" in a candlestick chart mean? The opening and closing prices are very close, with relatively long upper and lower shadows. It indicates a balance of power between bulls and bears, but you need to wait for the next candlestick to confirm the direction.
What is the difference between forward-adjusted and backward-adjusted prices? Forward adjustment keeps the current price unchanged and adjusts historical prices; backward adjustment keeps the IPO price unchanged and adjusts current prices. Both eliminate ex-dividend and ex-rights gaps, but the numerical directions are opposite. Forward adjustment is recommended for easier comparison with current market prices.
Why do some daily candlesticks have no trading volume? The stock might have been suspended that day (e.g., for an extraordinary general meeting or restructuring). In this case, the trading volume is 0, and the candlestick appears as a horizontal line.
Is the data wrong if the price change exceeds 10%? The normal daily limit for A-share main board stocks is ±10%, but there are exceptions, such as the first day of an IPO, ST (Special Treatment) stocks at ±5%, and STAR Market/ChiNext stocks at ±20%. A change exceeding ±10% might be due to special treatment or a change in price limit rules. Please check the rules of the board the stock belongs to.
Can I query historical candlesticks for delisted stocks? This tool only includes A-shares that are currently trading normally or suspended. Historical data for delisted stocks is generally no longer provided.
How often is the candlestick data updated? Daily data is updated after the market closes each day (around 17:00); real-time intraday data is not provided. Weekly and monthly data are updated after the corresponding period ends.

Limitations & Boundaries / Important Notes

The candlestick data provided by this tool is sourced from public exchange quotes and is delayed by approximately 30 minutes (daily charts are updated after market close). The data is for learning and research reference only and does not constitute investment, financial, or tax advice. For actual investment decisions, please refer to listed company announcements, industry research reports, and professional opinions. This tool assumes no legal responsibility for data accuracy. If you find abnormal stock prices, please refer to official channels (Shanghai Stock Exchange, Shenzhen Stock Exchange).

Now you can enter any A-share code in the tool above to view real-time candlestick trends and analyze historical market data by combining trading volume and price adjustment settings.