Looking over a friends 401K plan recently I tried to decipher what his employer was offering for investment choices. In his case, he was mandatorily enrolled in what appeared to be a T. Rowe Price 2020 Retirement Fund, yet it did not have the investor share class ticker symbol TRRBX. Instead it was a CIT (Collective Investment Trusts) fund option that carried an ER (expense ratio) of 1.18% compared to TRRBX's ER of (0.61 %).
I attempt to monitor my weighted expense ratio of my entire portfolio. Funds in my portfolio that have an ER above this weight average will be scrutinized more closer for lower ER comparative options. In some rare cases, paying a high ER is legitimized by manager out performance.
Article explores these expenses:
https://humbledollar.com/2018/08/separated-at-birth/
Comments
I believe that 401k plans are allowed to have opt-out provisions, but not mandatory ones. That is, you can't be required to invest in a default fund. Though a plan can specify a default and you wind up invested there if you don't actively opt out.
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The column doesn't do a great job of explaining clones, as it lumps multiple share classes of one fund (VFINX et al.) with a share class (VIIIX) of different fund that is a clone of the Vanguard 500 fund. I added a comment there to that effect.
One place where that distinction matters is in taxable accounts. It's often possible to do a tax-free exchange from one share class to another of the same fund. But AFAIK you can't do that between share classes of clones.
https://www.employeefiduciary.com/blog/john-oliver-should-be-upset-his-hancock-401k-fees-are-too-high
The column is a discussion of the Hancock plan John Oliver presented a couple of years ago (and was linked to by MFO, somewhere). Oliver starts talking about the plan around 12:00 in the video:
https://en.wikipedia.org/wiki/Rope