In December 2016 NN Group decided to buy Delta Lloyd for around €2.5 billion. In May 2018 NN Group said that post the acquisition it had achieved cost reductions of €175 million, €42 million of which had been achieved in the first quarter of 2018. It now anticipates that total cost reductions will reach €400 million by 2020 of which at least half will be achieved by the end of 2018.