Tian Tian Fund Tracking Error Log in to Tian Tian Fund official website, search for the fund you bought, and then click the manager below to find the tracking error (in blue font). It should also be noted that index funds have tracking errors, while non-index funds have no tracking errors. Generally speaking, it is recommended to choose a fund with small tracking error, and at the same time, it is necessary to clarify whether the fund is an index fund. The smaller the error, the better the overall management ability of the fund company.