Silver's (SIVR) (AGQ) (SLV) (SIL) After Metal Trades Down

Silver prices continued to be pressured Friday, as it has been weighed down by the investors taking profits in recent trade, and increased margin requirements, which has dragged silver companies Physical Silver (NYSE:SIVR), ProShares Ultra Silver (NYSE:AGQ), iShares Silver Trust (NYSE:SLV) and Global X Silver Miners ETF (NYSE:SIL) down on the week, although most rebounded on Friday.

ProShares UltraShort Silver (NYSE:ZSL) reversed direction, closing Friday at $23.11, down $1.23, or 5.05 percent.

Silver for July delivery dropped 95.3 cents, or 2.6 percent, to $35.29 an ounce on the Comex division of the New York Mercantile Exchange. It had risen as high as $36.43 an ounce in Friday's trading.

The front-month silver contract had its worst week since late March 1980. Silver for May delivery fell 27 percent in the five-day period — its biggest percent drop since that date. The most-active July contract also was down 27 percent on the week.

Silver has lost 14 percent so far in 2011. On April 25, silver had reached as high as $49.845.

Gold for June delivery climbed $10.20, or 0.7 percent, to $1,491.60 an ounce. Gold lost 4.2 percent last week, as it had settled at a record $1,556.40 an ounce the Friday before. Gold fell 4.2 percent on the week.

ProShares Ultra Silver (NYSE:AGQ) closed Friday at $186.56, gaining $7.22, or 4.03 percent.