"I think with the Swiss banks, the impact is pretty simple—you have a big revenue base in dollars and a big cost base in Swiss francs, and de facto, in our numbers, with the move of the Swiss franc, you have 10-15 percent cut to earnings," said Bodereau.
However, he added: "I think the impact on capital is actually quite limited, that is something that Swiss banks will survive."
Read MoreSwiss look to London property after franc fracas
Bodereau was less sanguine about the prospects of Austrian banks, the largest of which by total assets include Erste Group Bank, UniCredit Bank Austria and Raiffeisen Bank International.
"We have just found out this week that 18 percent of retail loans in Austria were denominated in Swiss francs. That it is going to cause mass pressures in a banking system that is already really weak. So I think Austria will be the one I will be looking at when I think of the Swiss franc right now," he said.
Shares of Erste Bank and Raiffeisen fell by around 8 percent on Thursday after the SNB made its move.
On Tuesday, Poland ordered an investigation into the widespread practise of domestic banks offering mortgage loans denominated in Swiss francs, according to Reuters.
This practise, which saw homebuyers opt for Swiss franc-denominated loans with lower interest rates than those on zloty-denominated loans, has left borrowers at the mercy of financial markets since the franc surged last week.
The Governor of the Polish central bank, Marek Belka, has called for "extraordinary" measures and a possible cut to mortgage rates to provide relief for borrowers, according to Reuters.