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Portugal's bank woes raise concerns of another EU crisis, reports CNBC's Steve Sedgwick.
Portugal's banking sector has gone through a transformative intervention, making its risk to Europe's banking system small, Antonio Roldan Mones, Portugal analyst at Eurasia Group.
Alberto Gallo, head of European macro credit research at RBS, says Banco Espirito Santo has capital problems not solvency issues.
Pedro Santana Lopes, former Portuguese Prime Minister, says Banco Espirito Santo has a "good solvency situation" but the family behind the lender has questions to answer.
Pedro Santana Lopes, former Portuguese Prime Minister, says the government will not pay for Banco Espirito Santo.
Otto Dichtl, managing director at Stifel Nicolaus, says there are "question marks" around the amount of capital Banco Espirito Santo has, but the lender is unlikely to default.
Edward Hugh, an independent economist, says the euro zone debt crisis has not returned but the issues in Portugal are a "warning shot" that it might be back soon.
John Hourican, CEO of the Bank of Cyprus, says he hopes the lender is "not in the news" for failing the forthcoming asset quality review.
John Hourican, CEO of the Bank of Cyprus, says the banking issues in Portugal are "unfortunate" as it has come at a time when banks are trying to restore confidence in the sector.
Giovanni Sabatini, managing director of the Italian Banks Association, says Italian Banks are in "good shape" and have worked hard to prepare for the asset quality review.
Ivan Tan, Director of Financial Institutions Ratings at Standard & Poor's, weighs the pros and cons of a possible merger between three of Malaysia's largest financial lenders.
Brian Waterhouse, Senior Analyst , Japan Banks at CLSA, explains why Japanese banks are mapping out long-term expansion plans in Southeast Asia.
Marty Mosby, Banking Analyst at Vining Sparks, outlines the factors that will help Wells Fargo see a pickup in its second quarter earnings.
James Lowell, CIO of Adviser Investments, expects markets to recoup losses once investors realize that fears over Portugal's banking sector are "individual and isolated."
Three of Malaysia's largest financial institutions are in talks to combine, which would create one of southeast Asia's biggest lenders by assets.
Fed vice chair Stanley Fischer said it is unclear that breaking up the largest U.S. banks would help stabilize the country's financial system.
For some of Wall Street's biggest names, quarterly results are expected to be weak, while the future is pockmarked with uncertainty.
The Fed issued a cease-and-desist order and a $975,000 fine to Banco Espirito Santo for a violation in 2012.
Banco Espirito Santo was fined $975,000 by the Federal Reserve in 2012. CNBC's Michelle Caruso-Cabrera provides insight to the fine.
Portugal suspends the trading in Banco Espirito Santo shares, reports CNBC's Michelle Caruso-Cabrera.
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