BRIAN GAYNOR: Sharesies and its huge impact on the NZX

There has been a dramatic change in NZX trading activity in recent months.A phenomenal increase in trades is due to escalating interest in the NZX by the younger generation, particularly through Sharesies.It is well illustrated by the following graph, which covers NZX All Index companies.The grey bars, which measure the number of trades, show individual trade numbers have soared from around 200,000 per month at the end of 2017 to more than one million trades in March this year — and have remained at this elevated level over rece...