The prices of a range of commodities slid further Monday, dragging down stocks as investors feared more pain ahead for the asset class.
Spot silver was the standout laggard, slouching to a low of $17.34 an ounce on Monday, reaching a four-year low. Data on Friday from the Commodity Futures Trading Commission confirmed that money managers had turned negative on the commodity. Spot gold also dipped, to $1,208.70 per ounce, and effectively wiped out all of its gains this year as the precious metal traded at levels not seen since early January.
Other metals were also lower with platinum extending losses and hitting new nine-month lows and palladium also slipping to levels not seen since mid-May. A London benchmark for copper hit a 3-month trough and Reuters reported that Chinese steel and iron ore futures slid to record lows on Monday. Soft commodities like wheat, corn and soybean are all lower for the trading year and prices eased again on Monday morning. Oil benchmarks and natural gas also saw weakness as the trading week began.
Read MoreSilver slumps to 4-year low; gold looks likely to test $1,200
"The liquidation is universal," Dennis Gartman, a commodities trader and editor and publisher of the Gartman letter, told CNBC via email. "Today may be quite ugly around the world as deflation, rather than inflation, is the order of the day."