Morningstar Office provides daily, month-end, and quarter-end returns for mutual funds, exchange-traded funds, and closed-end funds, and daily and month-end returns for stocks.
Daily returns use prices as of the close of business the previous day. They are calculated every day. The Return Date column displays the "as of" date for the returns listed in that view.
Month-end returns use prices as of the last market close of the previous month, and quarter-end returns use prices as of the last market close of the previous quarter.
See Also
Note: Here's an example: On June 7th, 2006, the daily returns for mutual funds were as of June 6th, the month-end returns were as of May 31st, and the quarter-end returns were as of March 31st.