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Thursday's ETF Winners & Losers

HealthShares Emerging Cancer is Thursday's top fund, buoyed by Dendreon's rise.

HealthShares Emerging Cancer

(HHJ)

was Thursday's best performer among exchange-traded funds, as positive headlines out of holding

Dendreon

(DNDN)

boosted the ETF by more than 4%.

Dendreon jumped 43% after the biotech company said the Food and Drug Administration provided confirmation it will accept either a positive interim or final analysis of survival in order to approve the prostate cancer vaccine, Provenge.

The HealthShares Emerging Cancer ETF was recently up 96 cents, or 4.1%, to $24.49.

ETFs tracking silver and gold were also among the best performers. Silver futures surged by 29 cents to $13.51 an ounce. Gold futures were adding $5.80 to $665.10 an ounce.

The

PowerShares DB Silver

(DBS) - Get Invesco DB Silver Fund Report

ETF was climbing 61 cents, or 2.6%, to $26.49. The

iShares Silver Trust

(SLV) - Get iShares Silver Trust Report

was up $2.60, or 2.3%, to $133.61. The

streetTRACKS Gold Shares

(GDX) - Get VanEck Vectors Gold Miners ETF Report

rose 67 cents, or 1.7%, to $38.66.

The

Internet Infrastructure HOLDRs

(IIH)

was also rising. Among its holdings,

BEA Systems

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was rising 2.1%, and

Akamai Technologies

(AKAM) - Get Akamai Technologies, Inc. Report

was up 3.9%.

The Internet Infrastructure HOLDRs ETF was recently adding 10 cents, or 1.7%, to $5.41.

Housing-related ETFs were among few losers Thursday. Among housing concerns,

Toll Brothers

(TOL) - Get Toll Brothers, Inc. Report

fell 2.1%,

KB Home

(KBH) - Get KB Home Report

was shedding 1.8%,

Standard Pacific

(SPF)

was losing 1.6% and

Hovnanian

(HOV) - Get Hovnanian Enterprises, Inc. Class A Report

was lower by 1%.

The

iShares Dow Jones U.S. Home Construction

(ITB) - Get iShares U.S. Home Construction ETF Report

ETF was recently falling by 29 cents, or 0.8%, at $37.16. The

SPDR Homebuilders

(XHB) - Get SPDR S&P Homebuilders ETF Report

ETF was down 13 cents, or 0.5%, to $35.57.