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Sector roundup: Investment firms, coal companies

The Associated Press

Among the sector activity stories for Monday, June 24, from AP Business News:

— Shares of major brokerage and investment firms fell Monday amid a slump in the broader market and in financial shares. The decline in brokerage stocks occurred despite Citigroup upgrading the sector and several companies in response to the impact on interest rates and markets of the Federal Reserve's policies.

— Shares of several coal companies sank to new lows on worries about the Chinese economy and possible new regulations for coal-fired power plants in the U.S.

— Shares of some companies based in China fell on worries about tighter lending in that country.