text: RESEARCH ALERT - Aronkasei cut . TOKYO 1996-08-26 Nomura Research Institute Ltd downgraded Aronkasei Co Ltd to a " 2 " rating from its previous " 1 " , market sources said on Monday . In its three-grade rating system , the research institute assigns a " 2 " rating to issues whose values it sees moving within 10 percentage points in either direction of the key 225-share Nikkei average over the next six months . Nomura officials were not immediately available for comment .