Fitch Ratings has said that the market turmoil that besieged the financial markets in August 2007 will test the robustness of the system following Q207 ratings migration results. These results saw the par-value of corporate bond upgrades in Europe, the Middle East and Africa (EMEA) again outpace downgrades, this time by a margin of 2.4:1. Moreover, ratings migration for banking and finance, insurance and supranational (BFI) securities (where much of the market dislocation has occurred) were even higher. In contrast, ratings migration for industrial securities (a segment where fundamentals remain benign) still has a slight negative bias.