Offer your thoughts or opinion on the input financial query or topic using your financial background.

Does dividend on 401K have any effect on gains
Adjusting for a market change from day to day, the dividend should have no impact on you. Your X shares time $Y should be nearly identical right after that dividend hits the account.  And within the 401(k) or IRA for that matter, the accounting doesn't matter most of the time. Outside a retirement account, you need to pay tax on the dividend, and add the newly purchased shares' cost to your cost basis.