Bundled securities tracking semiconductors were among the top performers Wednesday, as several chipmaker stocks supported a 0.4% advance in the Nasdaq Composite.

Among individual names, Applied Materials ( AMAT), Maxim Integrated Products ( MXIM), National Semiconductor ( NSM), and Advanced Micro Devices ( AMD) were higher by 2.1% or more.

The Ultra Semiconductor ProShares ( USD) was adding $2.97, or 3.6%, to $85.02. The PowerShares Dynamic Semiconductors ( PSI) was rising 34 cents, or 1.8%, to $19.57. The Semiconductor HOLDRs ( SMH) ETF was up 64 cents, or 1.7%, higher at $38.39. The SPDR S&P Semiconductor ( XSD) was recently up 37 cents, or 0.7%, to $53.46.

ETFs tracking the retail sector were also among the winners of Wednesday's session, courtesy of a jump in Best Buy ( BBY). The electronics retailer added nearly 4% after announcing a new stock buyback plan of $5.5 billion. Best Buy said it will raise its quarterly dividend by 30% to 13 cents, in addition to the company's plans of opening another 400 stores in North America.

Other retail names were also on the rise. Kohl's ( KSS) gained 2.6%, CVS ( CVS) added 2.2%, Kroger ( KR) was up 2.1%, RadioShack ( RSH) was gaining 1.8%,

The SPDR S&P Retail ( XRT) was higher by 80 cents, or 1.9%, to $43.58. The Retail HOLDRs ( RTH) was adding 88 cents, or 0.9%, to $104.72. The PowerShares Dynamic Consumer Discretionary ( PEZ) tacked on 29 cents, or 1%, to $28.30.

On the flip side, insurance-related bundled securities were among few losers of the session. Among insurers, Progressive ( PGR) and AIG ( AIG) were easing 1.3%, and both Hartford Financial Services ( HIG) and The Chubb Corporation ( CB) slumped 0.8%.

The iShares Dow Jones U.S. Insurance ( IAK) was losing 47 cents, or 0.8%, to $55.64. The PowerShares Dynamic Insurance ( PIC) was down 11 cents, or 0.6%, to $18.91.

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