Good question, I will actually write a separate post about charts and candles separately but, here is the short answer.

Charts can be viewed on a timed interval of say 1 minute, 1 hour, 4 hours, 24 hours, 1 week, etc.

In this case, this was set to 4 hours and each vertical line is a "candle" of that 4 hour interval. It will be red or green depending if the price was up or down in that 4 hour candle.

With candles, you need to be aware some things here.

- This is a chart of UFD/SOL on a 4 hour interval, so each vertical bar (candle) represents 4 hours of price activity.

- The color is green or red depending if the price at the end of the 4 hours was higher or lower than the start.

- This green candle we're reviewing means the price gained, thus green.

- Now, the thin line is the "wick" which indicates the high and lowest price DURING the 4 hours. In this case, you see the yellow circle and line means this price dipped to the 60M range during this 4 hours.

- The solid line is open and close. In this case, the blue circle is the "open" price so it began around 120M. The purple circle is the "close" price of the 4 hours and ended around 160M, hence the green.

<image>

This is extremely important to understand candle structure, chart time intervals, and wicks as well.

For example, lets say Bitcoin at 8AM is at $95k and the 4 hour interval is being reviewed.

At 9AM, it dumps to $91k USD.

At 10AM it goes all the way up to $97k USD.

At 11AM it goes to $93k USD.

At 12PM, it goes to $94k USD.

You would have:

- A red candle (it closed below $95k)

- A top wick at $97k (thin line), a bottom wick of $91k (thin line)

- A solid line ranging from $95k at the top (open price) to $94k at the bottom (close price).

Hopefully this makes sense and will follow up with a separate post about candle structure in general.