Shares of Pentair ( PNR) were among the NYSE's losers Tuesday, tumbling 13% after the pumpmaker posted third-quarter results that fell below forecasts and warned that fourth-quarter earnings would also be below expectations.

The company earned $47.4 million, or 46 cents a share, on sales of $716.3 million. Excluding items, the company would have earned 44 cents a share. Analysts polled by Thomson First Call expected earnings of 46 cents a share and sales of $727.8 million. A year earlier, Pentair earned $47.9 million, or 47 cents a share, on sales of $607.8 million. Excluding discontinued operations, the company would have earned 32 cents a share in the year-ago quarter.

Looking ahead, Pentair forecast fourth-quarter earnings of 40 cents to 42 cents a share. Analysts had been expecting earnings of 52 cents a share. For 2006, the company expects earnings of $2.20 to $2.30 a share, below analysts' mean estimate of $2.38. Pentair sees sales growth in the mid-single digits. Shares were trading down $4.57 to $31.69.

Pactiv ( PTV) rose 17% after the maker specialty packaging products posted third-quarter earnings that topped forecasts. The company reported earnings from continuing operations of $42 million, or 28 cents a share, on sales of $695 million. Analysts were expecting earnings of 22 cents a share on sales of about $700 million. A year earlier, the company earned $49 million, or 32 cents a share, on sales of $652 million.

For the fourth quarter, Pactiv forecast earnings of 20 cents to 26 cents a share. Analysts predict earnings of 21 cents a share. Shares were trading up $2.90 to $19.99.

Shares of Burlington Northern Santa Fe ( BNI) rose 5% after the railroad operator reported better-than-expected third-quarter results. The company earned $414 million, or $1.09 a share, on sales of $3.32 billion. Analysts expected earnings of $1 a share on sales of $3.2 billion. A year earlier, the company earned $2 million, or 1 cent a share, on sales of $2.79 billion. Last year's results included charges totaling $288 million, or 76 cents a share. "Demand for rail transportation continues to outpace the rest of the economy," the company said. "BNSF continues to operate a fluid rail network and, as a result, we have recorded our fourteenth consecutive quarter of year-over-year volume increases." Shares were up $2.86 to $61.86.

Building Materials ( BMHC) rose 9% after the construction services company posted a big jump in third-quarter earnings and sales. The company earned $41.6 million, or $2.81 a share, on sales of $819.8 million. The single-analyst forecast called for earnings of $2.13 a share and sales of $762.2 million. A year earlier, the company earned $18.1 million, or $1.29 a share, on sales of $591.5 million. "Our financial results for the quarter were driven by solid performances at BMC West and BMC Construction," the company said. Shares jumped $6.99 to $83.99.

Shares of Sherwin-Williams ( SHW) fell 5% after the paint company posted weaker-than-expected third-quarter earnings and said fourth-quarter earnings would be below forecasts. The company earned $151.6 million, or $1.07 a share, on sales of $1.98 billion. Analysts projected earnings of $1.10 a share on sales of $1.96 billion. A year earlier, the company earned $132.9 million, or 92 cents a share, on sales of $1.68 billion.

Looking ahead, Sherwin-Williams forecast fourth-quarter earnings of 41 cents to 49 cents a share on mid-single-digit sales growth. Analysts predicted earnings of 54 cents a share on sales of $1.63 billion. Shares recently fell $2.12 to $42.71.

Shares of Domino's Pizza ( DPZ) gained 9% after the company posted improved third-quarter earnings. The pizza-delivery company reported third-quarter net income of $20.8 million, or 30 cents a share, beating analysts' mean estimate of 27 cents a share. A year earlier, the company's pro forma profit -- which takes into account its initial public offering last year -- was $16.1 million, or 23 cents a share. Domino's said domestic same store sales increased 1.1% for the quarter, while international same store sales increased 4.5%, on a constant-dollar basis. The company's shares recently traded at $23.54, up $1.94.

NYSE volume leaders included Cablevision ( CVC), down $3.27 to $24.53; Lucent Technologies ( LU), up 2 cents to $3.18; Texas Instruments ( TXN), down $1.71 to $29.21; Pfizer ( PFE), up 15 cents to $21.24; Nortel Networks ( NT), down 3 cents to $3.46; Halliburton ( HAL), down 59 cents to $60.50; and Exxon Mobil ( XOM), up 34 cents to $57.19.

Nasdaq volume leaders included Intel ( INTC), up 6 cents $23.16; Oracle ( ORCL), up 12 cents to $12.94; Microsoft ( MSFT), down 2 cents to $25.08; Sun Microsystems ( SUNW), down 4 cents to $3.99; Altera ( ALTR), down $1.26 to $16.47; Cisco Systems ( CSCO), down 1 cent to $17.15; Sirius Satellite Radio ( SIRI), down 2 cents to $6.04; and eBay ( EBAY), down $1.12 to $38.30.

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