香港恒生指数8月18日（周二）收盘上涨17.92点，涨幅0.07%，报25471.15点； 香港恒生科技指数8月18日（周二）收盘下跌42.85点，跌幅0.9%，报4739.18点； 国企指数8月18日（周二）收盘上涨13.23点，涨幅0.16%，报8453.2点； 红筹指数8月18日（周二）收盘上涨21.56点，涨幅0.52%，报4183.04点。

Iran's deputy parliament speaker said the Caspian Sea Convention will be submitted to Iran's National Security Council for review and that parliament will carefully evaluate whether the pact adequately protects national interests. He said the Caspian Sea is as strategically important to Iran as the Strait of Hormuz, the Persian Gulf or the Gulf of Oman and that, for ecological, economic and national-security reasons, its status is non‑negotiable; the rights and interests of all Caspian littoral states must be protected.

China-listed grain ETFs including INVESCO, E Fund and Huaxia rallied more than 7%.