突发跳水！原因找到了

Market Performance - On December 15, A-shares experienced a significant decline, with the Shanghai Composite Index falling by 0.55%, the Shenzhen Component Index down by 1.1%, and the ChiNext Index dropping by 1.77% [2] - A total of 2,314 stocks rose, while 2,968 stocks fell, indicating a broad market downturn [3][4] Sector Performance - The consumer sector showed resilience, with companies like Sunshine Dairy (001318) and Dongbai Group (600693) hitting the daily limit up. This was supported by a notice from the Ministry of Commerce and other financial authorities aimed at boosting consumption through 11 specific measures [5] - The commercial aerospace sector remained active, with stocks such as Reco Defense (002413) and Tongyu Communication (002792) also reaching the daily limit up [7] Economic Data Impact - The National Bureau of Statistics reported that the total retail sales of consumer goods in November reached 43,898 billion yuan, growing by 1.3% year-on-year, a decrease from the previous value of 2.9%. This slowdown in consumption growth was attributed to a high base from the previous year [12] - From January to November, national real estate development investment totaled 78,591 billion yuan, a year-on-year decline of 15.9%, with residential investment down by 15.0%. Despite this, investment growth excluding real estate development remained positive [13] External Influences - The decline in the market was partly influenced by negative sentiment from the U.S. tech sector, particularly in AI stocks, which saw significant drops. This led to a spillover effect on A-shares, contributing to a decrease in market risk appetite [12]