4
May
COMEX silver extends losses; iShares holdings dip
4 May 2011 Reuters
COMEX silver dipped 3 percent on Wednesday, extending losses from the previous session after CME raised margins for the third time in a week, and holdings in the iShares Silver Trust dropped to a 7-week low.
http://www.reuters.com/article/2011/05/04/markets-precious-idUSL3E7G401Q20110504
