Nikkei edges down, caution on 'overbought' sign

Mon Dec 10, 2012 7:10pm EST

TOKYO, Dec 11 (Reuters) - Japan's Nikkei share average
opened lower on Tuesday amid investor caution over signs that
the market is overbought while volume may be subdued ahead of
major economic events overseas.
    The Nikkei was down 0.1 percent at 9,526.40, while
the broader Topix index slipped 0.1 percent to