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system
why doesn't a mutual fund in my 401(k) have a ticker symbol?
user
that share class may not have a ticker symbol though "black rock msci acwi ex-us index" does have a ticker for "investor a" shares that is bdoax.  some funds will have multiple share classes that is a way to have fees be applied in various ways.  mutual fund classes would be the sec document about this if you want a government source within the us around this. something else to consider is that if you are investing in a "fund of funds" is that there can be two layers of expense ratios to consider.  vanguard is well-known for keeping its expenses low.
assistant