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Why do the colour on bar charts and volume bars not match sometimes?

The colour of volume bars can be different from a candle chart due to differences in the colour selection criteria.

The colour selection criteria are as follows.

For price candles

It is based on the opening and closing price of a stock in a given time frame.

  • The candle will be green if open price < close price.
  • The candle will be red if open price > close price.

For volume bars

  • The candle will be green if the candle's closing price > previous candle's closing price
  • The candle will be red if the candle's closing price < previous candle's closing price.
Accordingly, in a given time frame, if the closing price is greater than the opening price, but the candle's closing price is lesser than the previous candle's closing price, you will get a green candlestick & a red volume bar.

Learn more about various chart types in this chapter on Varsity.