In 2014, a total volume of 92 TWh of energy was traded or cleared by APX.
On 1 March 2013, APX-ENDEX separated into two companies: the power spot exchange APX and the gas spot, gas derivatives and power derivatives exchange ENDEX.
On 17 April 2015, EPEX SPOT and APX Group, including Belpex, announced their intention to integrate their businesses in order to form a Power Exchange for Central Western Europe (CWE) and the UK.
[4] APX Group is a holding company operating three energy exchange markets in the Netherlands, the United Kingdom and Belgium.
APX has over 180 memberships from various countries; companies trading on the spot power markets in the Netherlands, Belgium and the UK.