Everything affects the price of Efes - don't forget your Chaos Theory, and butterfly wingbeats in Central Asia causing hurricanes in the Caribbean.
I am expecting Erdogan to announce soon that this is a conspiracy by enemies of Turkey and that he irrefutable evidence of a concoction of different groups - Lufthansa, BBC, CIA, Israeli agents, Kemalists, Egyptian generals, Turkish generals, CHP and others - are using telekinesis to manipulate the money markets. This would be in line with the barmy things he has been stating publicly of the last six months. Not new that he should think these thoughts: just new that he has been expressing them so openly.