You can join or leave the fund at any time!
Most mutual funds are actually open-end mutual funds. This means that these funds are always selling shares to new investors. Therefore, there are no limits to the number of people who can have a share of the mutual fund. In this case, the fund manager will take the money that comes in with new investors and use it to purchase new bonds, or to increase the amount of money that is in one of the existing investments. Open-end mutual funds are some of the easiest ones to get into.
The other benefit of open-end mutual funds is that you do not have to stay in them for a fixed amount of time. This flexibility means that you will not get quite as much money in interest as you might with a closed-end mutual fund. However, the flexibility is a good idea if you are not sure whether or not the mutual fund will continue to have high returns after you purchase a share. If you are not satisfied with the way that the mutual fund is being run, you can sell your mutual fund shares back to the fund and get the money back out of your investment.
One thing that you should keep in mind is that since the mutual fund will pay out in cash if an investor wants to sell their shares, there is a slight risk that the fund could crash if too many of the investors decide to leave at the same time. If the fund does not have enough money available to pay back the leaving investors, then it will need to sell off some of the bonds that are held by the fund to get the necessary money.
You should consider an open-end mutual fund if you are looking for a quick way to add some diversity to your portfolio. Most mutual funds will consist of stocks and bonds from a large variety of different companies or industries. The other advantage of buying into a mutual fund is that you will have a professional managing the money that you have invested in that mutual fund.