Roller coaster day leaves China stocks on a high

Chinese stocks rose to the highest level in almost a month, led by consumer-staple and technology shares, adding to the benchmark gauge's steepest rally since March this week.

The Shanghai Composite Index increased 0.4 percent after changing direction at least seven times.

Gains accelerated in the final 15 minutes of trading after fluctuating for most of the session. The gauge, which jumped 3.3 percent on Tuesday amid optimism the nation's equities will be included in MSCI Inc's global indexes, declined 0.1 percent on Wednesday.