Have you seen those ads for whatever where lots of people are partying to great music and having the time of their lives?
An advertising prospectus is the opposite of that.
It’s an advertisement for a mutual fund, and it usually involves information about how the fund has done in the past and what features it has. It’s probably very exciting to financial types (and probably only for those types—the rest of us will stick with Super Bowl ads, thankyouverymuch).