The error rate of fund tracking is generally used in index funds, which belong to passive funds. A standard to measure the investment level of a fund manager is to look at the error rate of index funds and tracking indexes he invests in. The smaller the index, the better the investment ability. The bigger the index, the worse the investment ability. Therefore, we should carefully consider reinvesting. The above is just a personal opinion, for reference only. Venture capital needs to be cautious. I wish you a smooth investment and happiness every day.