CEZ AS (CEZ), the biggest Czech utility, retreated for a third day as the price of electricity dropped to the lowest in almost 19 months.

The stock dropped 0.8 percent to 730 koruna by 10:12 a.m. in Prague, adding to a 2.3 percent decline in the previous two sessions. Power for next-year delivery in Germany, where CEZ exports part of its output, slid 0.3 percent to 47.80 euros per megawatt-hour, the lowest since November 2010.

To contact the reporter on this story: Krystof Chamonikolas in Prague at kchamonikola@bloomberg.net

To contact the editor responsible for this story: Gavin Serkin at gserkin@bloomberg.net