Learning the Basics
The default graph on the homepage of CEX.IO is for GHS/BTC. This is basically the recent market history for buy and sell orders of 1 GH/s of mining power from Ghash.IO. All trades are made with Bitcoins, and you can see the GHS price in Bitcoins for certain time periods on the left side of the graph. The time period can be found at the base of the graph, and the numbers on the right of the graph indicate the volume during that specific time period. The volume of a particular asset on a graph is the amount of that particular asset that was traded over a certain period of time. High volume means there was a lot of trading going on during that time period. The price of GHS in BTC can be seen with the red and blue candlestick lines, while the faded bar graph in the background indicates the volume of trading.
What is a Candlestick?
The type of graph used to show the price history of various assets traded on CEX.IO is a candlestick chart. Novice traders may be used to seeing a line graph on other sites, but a candlestick chart is actually able to give you even more information than just the basic price. Each candlestick in the chart correlates with a specific time period noted at the bottom of the graph. There are four main points of each candlestick. The top of the candlestick is the highest price for a trade during that time period. The lowest point is the cheapest trade during that period of time. The middle part, which will be a red or blue bar, signifies the starting a stopping points of trading during that time period. If the bar is red, then the top end of the bar is where trading started and the bottom end of the bar is where trading ended. For the blue bars, the opposite is true. The top of the bar is where trading ended on a blue graph, while the bottom of the bar is where it started for that specific time period.
Reading the Market Depth
Below the main chart, we also have the market depth graph. This is used to see what would happen if some big trades were entered into the market. On the left you can see the amount of GHS available at a certain price, and the bottom shows you where the price would go if that amount of GHS was bought or sold. Generally speaking, the side with a taller line graph here is the side showing more resistance.