China's stock markets roared back from a week-long break to reach their highest levels in more than two years at the open, before paring gains after officials failed to inspire confidence in stimulus plans intended to revive the economy.

China is back to work after the fall "Golden Week" holiday, and the sheen is coming off a recent market rally. A briefing from the country's top economic planner, the National Development and Reform Commission,

On Tuesday, hashtags about mainland China's stock market — including the apt #A-shares rollercoaster — rushed to the top of Weibo's trending list. A-shares are stocks of Chine