Google Chrome and Microsoft Edge are in the process of rolling out a version update which is impacting some nabtrade functionality, including buy/sell buttons and certain page loads. If you are a Chrome or Edge user and are experiencing these problems, please visit the following FAQ to review the steps that need to be taken to prevent this issue from occurring.
nabtrade calculates average cost using the Weighted Average Price (WAP) calculation method.
Average cost is calculated by dividing the total purchase value by the total number of shares purchased.
WAP = Total Purchase Value / Total Shares Purchased.