As with any investment, it all depends on which fund you would be in. Morningstar.com can give you much info. No guarantee that what they rate high over the last 5 years will continue. September is never a good month for the market in general.

I invested some money in a mutual fund 3 months ago and it is worth less now than when I invested it. Is it the mutual fund or is it the market? Should I get a new financial advisor?

The majority of the investors buy when the market has already run up and is valued expensively. This often leads to disappointment when the market either goes down or sideways for years. If you avoid doing what others do and invest regularly in top fund schemes, you can easily make money from your mutual fund investments

Learn about ETF's. They usually have lower fees and many times outperform "managed" mutual funds. Consider: SPY, DIA, DVY, and VGT.

Quite a few of them are. The S&P500 is up 9.76% ytd, and 32% last year.

Those that are up are.