This Week's ETF Winners & Losers

Bundled securities tracking energy were among the top performers of a mixed week for exchange-traded funds, as the front-month June contract continued its recent ascent.

The Ultra Oil & Gas ProShares (DIG Quote) added 7.6% to $94.47, and the Oil Services HOLDRs (OIH Quote) ended the week up 4.6% to $169.98. The PowerShares Dynamic Energy Exploration (PXE Quote) ETF gained 3.3% to $22.51.

Elsewhere, the B2B Internet HOLDRs (BHH Quote) benefited from the same M&A news that propped up the Dow Jones Industrial Average.

Specifically, Oracle (ORCL Quote) said it will acquire one of the ETF's major holdings, Agile Software (AGIL Quote), for $495 million, or $8.10 a share. Agile ended the week higher by 8.3%, and the B2B Internet HOLDRs was higher by 1.9% to $2.15.

On the other hand, securities tracking chipmakers were hit hard. Following Tuesday's close, Applied Materials (AMAT Quote) posted second-quarter profits and revenue that topped analysts' expectations. However, the stock fell 4.4% for the week after the company reported lower orders.

The PowerShares Dynamic Semiconductors (PSI Quote) ETF eased 2.5% to $19.08. The Semiconductor HOLDRs (SMH Quote) was lower by 2.1% to $37.15, and the iShares Goldman Sachs Semiconductor (IGW Quote) ETF was down 1.8% to $64.94,

Elsewhere, ETFs tracking silver were also among the week's losers. Silver futures shed 2.5% to close Friday at $13 an ounce. The PowerShares DB Silver (DBS Quote) ETF dropped 2.2% to $25.47. The iShares Silver Trust (SLV Quote) slid 1.8% to $129.04.

Gold-related ETFs also declined for the five sessions, as bullion futures ended lower by 1.5% at $662 an ounce. The Market Vectors Gold Miners (GDX Quote) ETF slipped 1.9% to $39.01. The iShares Comex Gold Trust (IAU Quote) closed down 1.5% to $65.57, and the streetTRACKS Gold Shares (GLD Quote) ETF eased 1.4% to end at $65.51.