Asian stock markets are exhibiting a mixed trend on Tuesday with investors treading cautiously ahead of the announcement of key quarterly results. The dollar was largely unchanged at 80.71 yen, close to a 15-year low of around 80.40 yen and not far from a record low of 79.75 yen last plumbed in April 1995. The Japanese stock market is trading weak with a stronger yen and caution ahead of earnings reports contributing to the decline to an extent. The benchmark Nikkei 225 index, which declined to around 9,360 after edging up marginally in early trades, was down 17.76 points or 0.19% at 9,383.40 at the end of the morning session. Among other markets in the Asia-Pacific region, Hong Kong, New Zealand and Singapore are trading weak, while Shanghai, Indonesia, Malaysia and Taiwan are up marginally. Markets across the region ended mostly higher on Monday.