BUZZ-UAE's du, Etisalat diverge after Q4 earnings

** Shares in United Arab Emirates telecommunications firm du drop 1.7 percent ** Du reported 10.1 percent fall in fourth-quarter net profit to 461.0 million dirhams ($125.5 million); it had also reported declining profits in preceding four quarters ** Beltone Financial had forecast profit of 584.5 million dirhams in latest quarter ** Shares in bigger rival Etisalat rise 0.6 percent after company reported 2.7 percent rise in fourth-quarter net profit to 2.32 billion dirhams ** Dubai stock index u