Victory for Marine Le Pen in the French presidential election could force the market to dust off its playbook from the eurozone sovereign crisis of 2011, according JP Morgan Cazenove.

Equity strategy analysts at JP Morgan Cazenove, led by Mislav Matejka, said in a note today that they expect "far-reaching" consequences  in the event Le Pen prevails over Emmanuel Macron and conservative candidate François Fillon in the battle for the presidency.