premise: Vivendi Universal, which lost 2.3 percent to 25.10 euros was the leading slider. Insurer Axa and car group Peugeot also declined.
  On the plus side, Vinci, Pernod-Ricard, Thales and EADS attracted the most support.
  In Frankfurt, German shares fell on the day, led lower by RWE after the utility reported earnings that disappointed the market, with Frankfurt's benchmark DAX index lost 29.15 points, or 0.57 percent, to 5,081.46.
  RWE lost 2.2 percent to 56.53 euros, reversing Tuesday's gains that had been driven by optimism about it earnings report.
   What caused RWE shares to fall on that day?
hypothesis: driven by optimism about it earnings report