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SQDIIce the reform and opening up, China's stock market has started from the original over-the-counter trading, and developed into the second largest capital market in the world for more than 5,000 listed companies. With the promulgation and implementation of the Securities Law, the capital market has entered the era of rule of law, and the issuance system has gone through the evolution process of examination and approval system, approval system and registration system, the change from the share-trading era to the full circulation era, and the process from unilateral market to the start of margin financing and securities lending, the establishment of stock index futures options index ETF options and other financial derivatives to become a bilateral market.In the "share-trading reform", the major shareholders obtained the circulation right by giving consideration to the minor shareholders, and the market entered the era of full circulation. During the time limit when "non-size" obtained the right of circulation, the market formed a super bull market, which was the end of the era of non-tradable shares and the welcome of the era of full circulation.1, the relationship between 519 market and policy change.

First, the relationship between the big bull market and the great changes in the capital marketIn the "share-trading reform", the major shareholders obtained the circulation right by giving consideration to the minor shareholders, and the market entered the era of full circulation. During the time limit when "non-size" obtained the right of circulation, the market formed a super bull market, which was the end of the era of non-tradable shares and the welcome of the era of full circulation.

In the "share-trading reform", the major shareholders obtained the circulation right by giving consideration to the minor shareholders, and the market entered the era of full circulation. During the time limit when "non-size" obtained the right of circulation, the market formed a super bull market, which was the end of the era of non-tradable shares and the welcome of the era of full circulation.One of the characteristics of the approval system is the scarcity of listed resources and the long-term lack of metabolism in the market. "Shell resources" is an important reason for the tradition of evil speculation in our market.3. Reform of comprehensive registration system