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1, the relationship between 519 market and policy change.1, the relationship between 519 market and policy change.

First, the relationship between the big bull market and the great changes in the capital market1, the relationship between 519 market and policy change.

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.Second, the stock market ecology under the registration system2. Share reform market