Shares of Veeco Instruments ( VECO) were among Nasdaq's losers Monday, falling 10% after the maker of manufacturing equipment posted mixed third-quarter results and warned that fourth-quarter results would be lower than Wall Street forecasts.

The company earned $1.6 million, or 5 cents a share, on sales of $100.1 million. Excluding items, Veeco would have earned $4.2 million, or 14 cents a share. Analysts polled by Thomson First Call were expecting earnings of 12 cents a share, before items, on sales of $103.8 million. A year ago, the company reported a loss of $2.2 million, or 7 cents a share, on sales of $97.4 million. Excluding items, the company would have reported a smaller loss of $649,000, or 2 cents a share, a year ago.

Looking ahead, Veeco forecast fourth-quarter adjusted earnings of 13 cents to 17 cents a share on sales of $100 million to $105 million. The projection is below analysts' expectation for earnings of 20 cents a share on sales of $109.2 million. Shares were trading down $1.68 to $15.39.

Graco ( GGG) fell 7% after the company posted third-quarter results that missed expectations. The machinery maker earned $30.9 million, or 44 cents a share, on sales of $176.9 million. Analysts projected earnings of 50 cents a share on sales of $186.3 million. A year ago the company earned $28.8 million, or 41 cents a share, on sales of $149.1 million. Shares were trading down $2.55 to $33.07.

Shares of Pilgrim's Pride ( PPC) rose 4% after the poultry company raised its fourth-quarter earnings forecast. The company now expects earnings of $1.07 to $1.12 a share, up from a previous guidance of 90 cents to $1 a share. Analysts had been expecting earnings of 99 cents a share. Pilgrim's Pride attributed the outlook to better-than-expected results at its U.S. and Mexico chicken operations. Shares were trading up $1.30 to $35.39.

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