As sophisticated as they may sound, expense ratios actually refer to the annual fees being charged by all funds. They include management fees, administration expenditures, distribution fees, and other expenses to keep things running. When it comes to the fees, you should try to keep them as low as possible, the lower the better. Index funds usually charge you around 0.20% of the assets, and funds managed actively should charge you only about 1.5% per year. Do take note that the average fee, has been increasing with time. You should expect funds with fees above 1% per year to underperform the total returns.
As for turnovers, they calculate the amount of time you hold on to the stocks you buy. The larger the amount of time a mutual fund holds on to a certain stock, the turnovers will be much less. The same goes when less trading is done. Since there’s a small charge every time you decide to buy or sell stocks, the turnover will be lower, lower transaction costs fund from the fund might mean lower capital gains taxes. People like you would like to see funds that use the ways of the "buy and hold" in investing. These funds are closely related to those of the index funds. It is normal for funds with turnovers of a 100% to buy completely new set of companies. Turnovers would be best if it’s substantially lower than the 80% which is around the mutual fund average. Index funds usually obtain a low turnover around 5%.
You should also check out how consistent has the fund's returns been over the past few years. You’re not only keeping an eye out for funds that have been showing good returns on a large scale, but those that do so consistently. Do think twice even if you have heard of funds that are said to have outperformed the market over a period of a decade. This is because most of them had good performance when they were new in the industry. After the fund has reached the amount they needed, these funds start to perform as the other funds in the market.
These are just a small dose of the tips that can help you to choose the best mutual fund. Do think twice when choosing a mutual fund which suits you.