1.   Stocks got a boost after the FOMC left benchmark U.S. borrowing costs unchanged.

2.   That bolstered expectations the Reserve Bank of Australia will keep benchmark borrowing rates on hold.

3.   U.S. stocks pared gains after Federal Reserve policy-makers left benchmark borrowing costs unchanged.

4.   U.S. stocks rose as Federal Reserve policy-makers left benchmark borrowing costs unchanged, reinforcing optimism that stocks remain a sound bet in a low-inflation economy.