German share prices edged downward in trading on the Frankfurt stock exchange Thursday, with the 30-share DAX 0.09 per cent lower at 3722 points. The MDAX mid-caps index edged down 0.03 per cent to 4854 points, while the more volatile technology stocks list, the TecDAX, was up 0.5 per cent to 470 points. The European Central Bank posted the euro at a 1.2359 dollars reference rate Thursday, up from 1.2331 dollars on Wednesday. The rate equates to 80.91 (81.10) euro-cents per dollar. The euro showed little movement against other major currencies in the ECB's reference rates, at 67.655 (67.485) British pence, 135.36 (135.56) yen and 1.5349 (1.5350) Swiss francs. --SP 2248 Local Time 1948 GMT