Nikkei drops as profit-taking hits exporters, utility shares

* Nikkei down 0.2 pct, Topix flat * Caution against steep rise in market - analyst * Utilities fall on Nomura rating cuts * Foreigners place net buy orders for Japan stocks By Ayai Tomisawa TOKYO, Jan 7 (Reuters) - The Nikkei edged down on Monday morning as profit-taking kicked in after a five-session winning streak that had taken Japan's benchmark index to a 22-month high, while utility shares led losses on brokerage rating downgrades. Analysts said sentiment in the Jap