Stocks took a breather Monday. Alcoa, JPMorgan Chase, and Bank of America led the Dow’s downswing. Trading ended near session lows amid news that Greece said it likely won’t meet its deficit-reduction target for 2011. Meanwhile, manufacturing activity increased in September. The Institute for Supply Management’s index rose to a reading of 51.6 from August’s level of 50.6. Economists had anticipated a lower reading of 50.5. Looking ahead, Yum Brands will issue quarterly data tomorrow.