收评：三大指数震荡调整沪指跌0.46% 保险板块领涨

Market Overview - The A-share market experienced fluctuations throughout the day, with the Shanghai Composite Index closing at 3666.44 points, down 0.46% [1] - The Shenzhen Component Index closed at 11451.43 points, down 0.87% [1] - The ChiNext Index closed at 2469.66 points, down 1.08% [1] - Total trading volume reached 949.464 billion yuan for the Shanghai market and 1,329.745 billion yuan for the Shenzhen market [1] Sector Performance - The insurance sector led the gains with an increase of 2.64%, totaling a trading volume of 400.02 million hands and a net inflow of 21.48 billion yuan [2] - The electrical machinery sector saw a slight increase of 0.36%, with a trading volume of 1,171.31 million hands and a net outflow of 11.05 billion yuan [2] - The gaming sector rose by 0.27%, with a trading volume of 1,607.92 million hands and a net inflow of 1.82 billion yuan [2] - Conversely, the railway transportation equipment sector experienced the largest decline at -3.34%, with a trading volume of 665.06 million hands and a net outflow of 10.46 billion yuan [2] - The components sector fell by 3.28%, with a trading volume of 1,958.58 million hands and a net outflow of 55.88 billion yuan [2] - The military electronics sector decreased by 2.98%, with a trading volume of 1,715.92 million hands and a net outflow of 36.44 billion yuan [2]