Tuesday's ETF Winners & Losers

Exchanged-traded funds tracking the oil and energy sector were among the worst decliners of Tuesday's losing session, as oil futures dropped.

Recently, the front-month September crude contract shed $1.58 to $73.31 a barrel. The SPDR S&P Oil & Gas Exploration & Production (XOP Quote) ETF was lower by $1.40, or 3%, to $45.63. The iShares Dow Jones U.S. Oil & Gas Exploration Index (IEO Quote) was down $1.68, or 2.8%, to $57.67. The Ultra Oil & Gas ProShares (DIG Quote) shed $3.42, or 3.1%, to $108.82. The United States Oil (USO Quote) ETF was off $1.35, or 2.4%, to $55.03.

Financial-related bundled securities were also performing poorly following American Express' (AXP Quote) latest earnings report. The financial services giant topped analysts' profit estimates, but it said it had to increase its loan-loss reserve because of a higher rate of delinquencies. The stock was off more than 3%.

The First Trust Financials AlphaDEX (FXO Quote) ETF was lower by 55 cents, or 2.8%, to $18.90. The Ultra Financials ProShares (UYG Quote) was off by $1.66, or 2.7%, to $60.64. The PowerShares Dynamic Financials (PFI Quote) was down 33 cents, or 1.3%, to $25.82.

ETFs tracking the semiconductor sector were also weaker, due to a weak sales outlook from Texas Instruments (TXN Quote), which reported earnings following the previous close. The chip giant's shares were down more than 3%.

The Ultra Semiconductor ProShares (USD Quote) was sliding 66 cents, or 0.7%, to $91.24. The SPDR S&P Semiconductor (XSD Quote) was losing 89 cents, or 1.6%, to $54.98. The PowerShares Dynamic Semiconductors (PSI Quote) declined by 18 cents, or 0.9%, to $20.01.

On the other hand, the B2B Internet HOLDRs (BHH Quote) ETF was one of few winners, thanks to a 3% rise in holding Ariba (ARBA Quote). The ETF was higher by a penny, or 0.6%, to $1.98.

The Biotech HOLDRs (BBH Quote) was also gaining ground, thanks to Biogen-Idec's (BIIB Quote) second-quarter earnings report. The company also raised its 2007 forecast, and the stock was higher by 3.9%. The Biotech HOLDRs was adding $1.97, or 1.2%, to $170.04.