The

iShares Dow Jones U.S. Industrial

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exchange-traded fund moved lower Friday after several Dow components faltered. Blue chips were brought down by

3M

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, which warned that its second-quarter results would be lower than Wall Street's forecast.

IBM

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and

Honeywell

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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

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ETF was down 1% after

Advanced Micro Devices

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cut its second-quarter sales forecast. Other stocks dragging down the ETF included

Analog Devices

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and

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Intel

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, 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

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was down 19 cents to $62.86. The

streetTRACKS Gold Shares

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ETF was down 25 cents to $62.77. And the

iShares Silver Trust

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shed $1.84, or 2%, to $114.15.

The

iShares Dow Jones U.S. Broker-Dealers Index

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, 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.