The iShares Dow Jones U.S. Industrial ( IYJ) exchange-traded fund moved lower Friday after several Dow components faltered. Blue chips were brought down by 3M ( MMM), which warned that its second-quarter results would be lower than Wall Street's forecast. IBM ( IBM) and Honeywell ( HON) also helped drag down the index as well. The iShares ETF recently changed hands at $61.69, down 41 cents. The Merrill Lynch Semiconductor HOLDRs ( SMH) ETF was down 1% after Advanced Micro Devices ( AMD) cut its second-quarter sales forecast. Other stocks dragging down the ETF included Analog Devices ( ADI) and Intel ( INTC), AMD's biggest competitor. Shares in chipmaker Atmel ( ATML) were recently sliding some 3%, which weighed on the ETF as well. The chip ETF was trading down 31 cents to $32.01. Several ETFs that track the metals market headed lower after weaker-than-expected employment data released Friday suggested that the economy may not be strong enough to spur continued demand in gold and silver. The iShares COMEX Gold Trust ( IAU) was down 19 cents to $62.86. The streetTRACKS Gold Shares ( GLD) ETF was down 25 cents to $62.77. And the iShares Silver Trust ( SLV) shed $1.84, or 2%, to $114.15. The iShares Dow Jones U.S. Broker-Dealers Index ( IAI), meanwhile, slipped 1% after one of its components warned of a big second-quarter loss. LaBranche ( LAB) tumbled more than 20% after the specialist trading firm said that it would post a $23 million loss for the quarter. Shares of the broker-dealer ETF were recently down 54 cents to $45.35.