Bundled securities tracking the Internet sector were among the best performing exchange-traded funds Monday, as several individual names supported a jump in the tech sector. Internet stocks were led higher by a 4.5% gain in Amazon.com ( AMZN). Elsewhere, VeriSign ( VRSN) was up 3.6%, Akamai Technologies ( AKAM) was higher by 2% and EarthLink ( ELNK) tacked on 1.6%. The Internet Infrastructure HOLDRs ( IIH) was the best performer of the Internet ETFs, adding 10 cents, or 1.9%, to $5.21. The First Trust Dow Jones Internet Index ( FDN) was higher by 37 cents, or 1.5%, at $25.65. The Internet HOLDRs ( HHH) was climbing 79 cents, or 1.3%, at $61.54. The Broadband HOLDRs ( BDH) ETF was another of the day's winners. Holdings Corning ( GLW), Nortel ( NT) and Broadcom ( BRCM) were all rising by 2% or more. The Broadband HOLDRs was gaining 27 cents, or 1.7%, to $16.69. The HealthShares Emerging Cancer ( HHJ) ETF was also up, thanks to a nearly 6% rise in shares of Dendreon ( DNDN). Dendreon said early Monday it will reduce its workforce by 40, or 18% of its staff, after the Food and Drug Administration earlier this month requested more information regarding the company's prostate cancer vaccine, Provenge. The HealthShares Emerging Cancer ETF was recently up 33 cents, or 1.4%, to $23.18. On the losing side, oil-related ETFs were down as crude retreated from earlier highs. Recently, the June front-month contract was off by 13 cents to $64.81 a barrel. Crude had pushed to $65.38 before falling lower. Natural gas was also losing ground, down 8 cents to $7.86 per million British thermal units. The United States Natural Gas ( UNG) ETF was shedding 0.8% to $52.27. The PowerShares DB Oil ( DBO) ETF was down 0.5% to $26.38. The iPath Goldman Sachs Crude Oil Index ( OIL) dipped 0.1% to $36.60. Retailer-related ETFs were pressured by declines of 1% or more in Lowe's ( LOW), Kohl's ( KSS) and Wal-Mart ( WMT). The Consumer Staples Select Sector SPDR ( XLP) eased 0.5% to $27.56, and the Retail HOLDRs ( RTH) was down 0.3% at $104.28.