4:15 pm : Equities ended today's session on their lows as global growth concerns reemerged. The three major indices all lost 0.9%, but the underperformance of small cap stocks was notable as the Russell 2000 slid 2.5%.

Although most markets across the globe were closed in observance of Labor Day, some countries continued reporting their economic data.

China reminded investors of its importance to the global economy as the decline in the country's Manufacturing PMI (50.6 actual, 50.9 prior, 51.0 consensus) along with a disappointing U.S. ISM Index (50.7 actual, 51.3 prior, 51.0 consensus) pressured commodities and commodity-related sectors.

As a result, energy and materials both ended with losses near 1.7%. Crude oil settled lower by 2.7% at $90.95 after today's inventory report revealed that crude stockpiles climbed to 6.696 million barrels, a record high dating back to 1982 when the Energy Information Administration began tracking the data.

Meanwhile, the materials sector declined throughout the day as related metals sold off. Gold futures fell 1.1% to $1455.90 per troy ounce after being down as much as 2.1% intraday. Meanwhile, copper was unable to bounce off its lows as the red metal declined 3.8% to $3.068 per pound.

The relative weakness of gold pressured miners as the Market Vectors Gold Miners ETF (GDX 29.65, -0.71) settled lower by 2.3%. Steelmakers also displayed weakness throughout the day, and the Market Vectors Steel ETF (SLX 41.56, -0.87) slumped 1.9%. Disappointing manufacturing data from China and the U.S. weighed on the group, and Alcoa's (AA 8.43, -0.07) announcement of a possible curtailment of its smelting capacity reflected the