SSE Composite Index decreased 2.00% to 2768.02 last trading day. Shenzhen Composite Stock Index decreased 2.50% to 8780.56 last trading day. Growth Enterprise Index decreased 2.06% to 1510.09 last trading day. The turnover of both Shanghai and Shenzhen was 379.29 billion CNY in last trading day, and it increased relative to the previous trading day.

In the view of sectors, 1 of 28 SWS Level-1 sectors increased while 27 sectors dropped. Specifically, Construction Materials (SWS)(0.09%), Steel (SWS)(- 0.13%) and Construction Decoration Materials (SWS)(-0.62%) did the best performance while National Defense & Military (SWS)(-4.06%), Household Appliances (SWS)(-4.04%) and Leisure Services (SWS)(-3.63%) did the worst performance.

As for the option contracts of 50ETF: the total turnover during 2018-08-02 was 2155495 lots (changed 38.32%) and 1012898 lots for call, 1142597 lots for put, currently the total open interest is 1657557 (changed 5.98%), and 984944 for call, 672613 for put. The put/call ratio in turnover is 1.1280 and put/call ratio in open interests is 0.6829.

China Securities Journal reported that due to environmental restrictions, construction sand, cement, stone and other materials prices have soared recently, driving the price of concrete continued to rise. The price of C30 concrete in some enterprises has been raised to 570 CNY/ cubic-meter. In addition, the construction site is prohibited to mix concrete at site and the pre-mixed concrete should be used uniformly.

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