SECURITIES

September Mutual Fund Sales Down: Sales of stock and bond mutual funds totaled $43.3 billion, down 5% from August, according to the Investment Company Institute. Although sales outpaced the $29.4 billion recorded in September, 1992, they fell short of the $45.9 billion taken in during August, the mutual fund industry trade group said. Investments in stock mutual funds fell to $18.7 billion from $19.4 billion in August, while bond mutual fund sales slipped to $24.6 billion from $26.2 billion. Growth and income funds had sales of $5.5 billion, the ICI said.