Renewed plunge in Greek banks hits European shares
* FTSEurofirst 300 down 0.1 pct
* Greek stocks down 15 percent since start of week
* ARM gains after Apple results
* Lanxess, Nordea rally after results (Updates with closing prices, adds quite)
By Alistair Smout and Blaise Robinson
LONDON/PARIS, Jan 28 (Reuters) - Greek stocks slumped further on Wednesday as concerns mounted about the banking sector after the election victory of anti-bailout party Syriza and the new government's cancellation of privatisation plans.
Other European stocks made marginal gains overall, but there were some upbeat corporate earnings reports and tech companies received a boost from Apple's robust profit growth.
Athens' ATG share index was down 9.2 percent and the Greek banking index skidded 27 percent, hitting a record low, amid investor fears that the new government's anti-austerity stance would make negotiations with the euro zone on a new aid deal difficult and jeopardise liquidity, traders said.
The ATG has now lost 15.4 percent since the start of the week, in the wake of Syria's election victory on Sunday, while the banking index has plummeted 98.7 percent since late 2009, before Europe's sovereign debt crisis started. Continuación...