By ZIMO ZHONG and MATT OTT Wall Street ticked modestly lower early Wednesday following another plunge in Chinese markets over concerns about skimpier-than-expected stimulus spending out of

A highly anticipated press briefing by China's top economic planner fell short of expectations.

Chinese stocks tumbled on Wednesday alongside their Hong Kong peers, as investors sought to profit from a blistering rally, which was dampened by the lack of powerful stimulus measures to revive the economy.