** Shares in PGE GPW:PGE fall as much as 6.5% after the Polish biggest utility reported preliminary Q3 results
** Erste Securities analyst Bártek Petr says the results came in slightly below estimates due to weaker generation prices and supply margins
** Petr also highlights concerns over declining supply volumes and slowing revenues from ancillary services, adding that high financial costs also weighed on performance
** As of 0907 GMT shares of PGE are down around 5%, falling the most among Polish blue-chips GPW:GPW