“指数基金”不是“随便买”，得看“跟踪标的与费率”

Group 1 - The core concept of index funds is to replicate the performance of a specific index, such as the CSI 300 Index, which means the fund should rise and fall in line with the index [1][2] - Different index funds can have significant differences in performance due to tracking errors, management fees, and fund size, which can affect overall returns [2][3] - Key selection criteria for index funds include checking the tracking index, ensuring a low tracking error (preferably less than 0.3% over the past year), keeping management and custody fees below 0.5%, and selecting funds with a size greater than 500 million to avoid liquidation risks [2][3] Group 2 - High management fees can erode profits over time, with a 1.5% fee compared to a 0.5% fee resulting in double the cost, impacting long-term returns [2] - Funds with small sizes (below 200 million) are at risk of being liquidated, which can delay access to invested capital [2][3] - Investors should choose funds that align with their investment goals, such as large-cap stocks through the CSI 300 Index or growth stocks through the CSI 500 Index, avoiding mismatches between fund names and tracking indices [2][3]