<prompt> Human: A little complicated backstory: I work for the founder of a commercial real estate firm, helping him manage his public market investments but Im not an employee of the real estate firm. His assistant at the RE firm recently has asked me for advice on what to do with her 401KIRA. She said the firm is moving to Fidelity for 401K, and she asked if I could look into what the options were with Fidelity.Since Im self-employed and dont use Fidelity, Im not really sure what the options are.Can anyone whose employer uses Fidelity for the 401K give me a high level of the options for funds that Fidelity allows you to invest in?Is it just an SP500 index and a few other Fidelity index funds?  <response>: A plurality, if not a majority of people have their 401ks with Fidelity. NetBenefits is huge. But thats really meaningless for your question. Every employer individually chooses a slate of funds to offer. It is quite possible for a Fidelity 401k to offer almost no Fidelity funds. She will need to wait and see a list of fund offerings for their specific plan. 