The Brexit result has huge implications for business in Britain and here.
122 billion pounds sterling was wiped off the value of the FTSE 100 after the market opened.
The UK Treasury estimates that their economy will take a four to six percent hit, in terms of economic output.
Economists here say our economy will be hardest hit by an inevitable slowdown in Britain.
The UK is one of our biggest trading partners - and that partnership is under the spotlight in light of Britain's decision to leave the EU.
Chief Economist with Goodbody Stockbrokers, Dermot O'Leary, says a slump in Britain will hit us here;