The S&P NZX 50 has opened down 4.3 percent
The New Zealand sharemarket has opened sharply lower after the Reserve Bank slashed its official cash rate.
NZ share prices plummet after US major indexes fall almost 10 percent overnight.
New Zealand's exchange drops 5 percent.
Fall comes as WHO declares virus a pandemic.
Coronavirus has rattled markets both here and around the world.
A significant drop in NZ share prices reflects global bloodbath.