FICC日报：政策调整融资保证金比例，指数冲高回落-20260115

Report Industry Investment Rating - Not provided in the content Core Viewpoints of the Report - Policy adjustment of the margin ratio for margin trading may lead to a "factory" - shaped trend in the stock index, with short - term growth slowing down. If the cooling process is not smooth, the Shanghai Composite 50 and CSI 300 indices may face relatively greater pressure [3] Summary by Related Catalogs Market Analysis Policy and Macroeconomic Data - The Shanghai, Shenzhen, and Beijing Stock Exchanges adjusted the minimum margin ratio for margin trading from 80% to 100% for new margin trading contracts, while existing contracts and their extensions remain unchanged [1] - In November last year, the US PPI and core PPI both rose 3% year - on - year, higher than the market expectation of 2.7%. Energy cost increases were the main driver of the PPI increase [1] - In December last year, the annualized total of existing home sales in the US was 4.35 million, the highest since February 2023. The median home price rose only 0.4% year - on - year to $405,400, the slowest growth in two and a half years [1] Spot Market - A - share indices showed a pattern of rising and then falling. The Shanghai Composite Index fell 0.31% to close at 4126.09 points, while the ChiNext Index rose 0.82%. The computer, communication, media, and electronics sectors led the gains, while the banking, real estate, and non - bank financial sectors led the losses. The trading volume of the Shanghai and Shenzhen stock markets was close to 4 trillion yuan, a new high [2] - The three major US stock indices closed down across the board, with the Nasdaq falling 1% to 23471.75 points [2] Futures Market - The basis of stock index futures declined. The trading volume and open interest of stock index futures increased simultaneously [2] Strategy - Policy cooling usually has a certain effect, but considering the long - term slow - bull market, historical experience can only be a limited reference. The stock index may show a "factory" - shaped trend, with short - term growth slowing down. If the cooling process is not smooth, large funds may suppress the market through their positions, and the Shanghai Composite 50 and CSI 300 indices may face relatively greater pressure [3] Chart Summaries Macroeconomic Charts - Include charts showing the relationship between the US dollar index and A - share trends, US Treasury yields and A - share trends, RMB exchange rates and A - share trends, and US Treasury yields and A - share style trends [6][9][10] Spot Market Tracking Charts - Table 1 shows the daily performance of major domestic stock indices on January 14, 2026, including the Shanghai Composite Index, Shenzhen Component Index, ChiNext Index, CSI 300 Index, Shanghai Composite 50 Index, CSI 500 Index, and CSI 1000 Index, with their respective closing prices, previous - day closing prices, and daily percentage changes [12] - Charts show the trading volume of the Shanghai and Shenzhen stock markets and the margin balance [6][13] Stock Index Futures Tracking Charts - Table 2 shows the trading volume and open interest of IF, IH, IC, and IM stock index futures, including the current values and changes [14] - Charts show the open interest, latest open - interest ratios, and net positions of foreign investors for IH, IF, IC, and IM contracts [6][15][17] - Table 3 shows the basis of stock index futures for different contracts (current month, next month, current quarter, and next quarter) and their changes [36] - Table 4 shows the inter - contract spreads of stock index futures and their changes [39] - Charts show the basis and inter - contract spreads of IF, IH, IC, and IM contracts [6][37][38]