On December 9, the State Administration of Foreign Exchange announced that it would expand the QFII investment quota to 30 billion US dollars, blowing a warm wind into the market. When will the newly added 2 billion US dollar quotas start to build positions? How great is its influence on the market? What借鉴and inspiration are there in the QFII investment philosophy for domestic investors? Before the new quota builds positions, how can domestic investors accurately grasp the investment trend of QFII and buy earlier to take the "foreigners" sedan chair?