I don’t know anything about Stadion Funds, but Morningstar’s Jeff Ptak is trolling them hard with what can only be described as a thorough hit-piece:
You need to read the whole thing for yourself, but this basically functions as a case study in how disclosure requirements and databases can be gamed in service of business interests.
Note that neither the linked article nor this post should be read as investment advice. This is presented for entertainment only. See also my lengthy disclosure at right.