流动性、交易拥挤度、投资者温度计周报：自媒体A股搜索热度再度上行-20250729

Group 1: Liquidity and Fund Flow - The supply side of funds is expanding, with net inflows of leveraged funds remaining high, and the issuance of equity public funds returning to high levels, with 172 billion units newly established[6] - Southbound funds have maintained a weekly average net inflow of over 10 billion for ten consecutive weeks, with a cumulative net inflow of nearly 200 billion[6] - The net inflow of margin financing last week was approximately 446.1 billion, marking a 97% percentile over the past three years, and the total margin financing balance reached 1.93 trillion[13] Group 2: Trading Activity and Market Sentiment - The trading heat for the mechanical industry increased by 55 percentage points to 67%, while the banking sector decreased by 20 percentage points to 51%[2] - Retail investor net inflow in the A-share market reached 132.6 billion, an increase of 539.8 billion from the previous value, marking a new high since April this year[2] - The Shanghai Composite Index reached a year-to-date high of 3600 points on July 23, driving an increase in A-share search heat on platforms like Kuaishou and Douyin[2] Group 3: Sector Performance - The net inflow for the pharmaceutical sector was 48.5 billion, while the petrochemical sector saw a net outflow of 8.0 billion[22] - The net inflow for the non-ferrous metals sector was 45.4 billion, and the machinery sector recorded a net inflow of 38.7 billion[22] - The stock-type ETF experienced a net outflow of 60 billion, which is at the 20.5% percentile over the past three years[23]