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News Summary: Tougher money-fund rules proposed

WASHINGTON (AP) -- CHANGE FOR MONEY FUNDS: Investors could lose principal from money-market funds that perform poorly under regulations proposed by the SEC. The change would mainly affect institutional investors.

FLOATING VALUES: The plan would require shares of some money-market funds to "float," instead of having a fixed value of $1 per share. The SEC also proposed new fees on withdrawals from money funds if assets that can be readily converted into cash fall below a certain level.

REDUCING RISK: Both changes are intended to better inform investors and protect the industry from risks that surfaced in the 2008 financial crisis.