Understanding chart prices - BUY, MID and SELL

By default, the TN Trader platform shows the MID price on the charts as soon as you open one up - this is the price between the BUY (ASK) and the SELL (BID) price. When you enter into a trade you do so at the BUY or SELL price. The difference between the BUY and the SELL prices is the spread. The below is an example:


  • Say the Market is the WALL STREET 30, and it has a 1-point spread
  • The BUY price is 34542.0;
  • The SELL price is 34541.0;
  • The MID price in this example is 34541.5;
  • The spread would be 0.5 points on either side of the MID price (totaling 1).

Remember, when you are closing a trade, you do so at the price opposite to the one you opened the trade in. So for example, when you close a BUY trade, you do so at the SELL price and vice versa.


How do I change the price shown on a chart?

When you open a chart, the price shown will be displayed at the top and you will notice that it is set at the MID price. If you wish to change the price that is shown on a chart, you can click on the drop-down arrow next to where it says MID and select either BUY or SELL, as shown below:

If you wish to know what the spreads are for our markets, you can do so by clicking on the 'i' icon next to a market as shown below:

Remember, all markets have a SELL price and BUY price that is exactly equidistant from the MID price.


When a BUY trade is open, at the time of closing you need to look at the opposing figure, so the SELL figure. When you look at the SELL Low on the trade, you will notice if your Stop Loss price was reached and thus, triggered correctly at or above that low.


When a SELL trade is open, at the time of closing you need to look at the opposing figure, so the BUY figure. When you look at the BUY High on the trade, you will notice if your Stop Loss price was reached and thus, triggered correctly at or below that high.


If you are ever in doubt, please contact us via email at support.uk@tradenation.com.

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