The liquidity of European credit default swaps on banks in Portugal, Italy and Spain has spiked over uncertainty concerning the results of the next round of stress tests, according to Fitch Solutions. The banks with the biggest increase in liquidity are EFG Eurobank Ergasias, Intesa Sanpaolo, KBC Bank, Caja de Ahorros de Valencia, Castellon y Alicante and Banco Popolare Societa Cooperativa.