股市资金流向图：今日沪深两市主力资金净流入12.95亿元，占比0.1%；大单资金净流出17.93亿元，占比0.14%；小单资金净流入3.18亿元，占比0.02%。

Group 1 - The core point of the article indicates that the net inflow of main funds in the Shanghai and Shenzhen stock markets today is 1.295 billion, accounting for 0.1% [1] - Large single fund outflow amounts to 1.793 billion, representing 0.14% [1] - Small single fund inflow is 318 million, which accounts for 0.02% [1]