Updated from 11:37 a.m. ESTShares of Buffalo Wild Wings ( BWLD) were among the Nasdaq's winners Tuesday, rising 5.9% after the company said fourth-quarter numbers would top expectations. The restaurant operator now expects to earn 25 cents to 28 cents a share on sales of $48.5 million. Previously, the company said it would make 17 cents to 19 cents a share. Analysts polled by Thomson First Call had been expecting earnings of 21 cents a share on sales of $47.7 million. Buffalo Wild Wings attributed the revised guidance to better same-store sales and lower poultry and insurance costs. Shares traded up $2.10 to $37.60. Alcoa ( AA) fell 2.7% after the aluminum company's fourth-quarter results fell short of expectations. Alcoa cited dollar weakness and rising raw material costs. Excluding items, the company made 39 cents a share on sales of $6.04 billion. Analysts were expecting earnings of 41 cents a share on sales of $6.1 billion. Shares traded down 82 cents to $29.65. Shares of Select Comfort ( SCSS) rose 10.6% after the company said its fourth quarter would top expectations. The mattress maker now expects earnings of 27 cents to 28 cents a share on sales of $149 million. Analysts had been expecting earnings of 26 cents a share on sales of $145.2 million. In early December, shares of Select Comfort cratered after the company warned that fourth-quarter sales would come in at $143 million to $149 million, down from its previous guidance of $153 million to $158 million. At the time, Select Comfort cited weak sales around Thanksgiving. Shares traded up $1.81 to $18.96. Flowers Foods ( FLO) fell 7.9% after the company warned that 2004 earnings would fall below expectations. The marketer of packaged bakery goods now expects to earn $1.21 to $1.24 a share, down from previous guidance of $1.30 to $1.34 a share. Analysts had been expecting earnings of $1.33 a share. Sales, meanwhile, are now expected to be between $1.55 billion and $1.56 billion, above its previous view of $1.54 billion to $1.55 billion. Analysts had been expecting sales of $1.54 billion. The company blamed the profit shortfall on a late-year surge in its stock that led employees to take advantage of the company's stock appreciation rights plan. Shares traded down $2.36 to $27.60. Shares of Books-A-Million ( BAMM) rose 3.2% after the company raised its fourth-quarter earnings outlook by a penny. The book seller now expects earnings of 54 cents to 58 cents a share, including a gain on insurance recoveries. Strong holiday sales led to the upward revision. An analyst following the company had been expecting earnings of 51 cents a share. Shares traded up 30 cents to $9.56. NYSE volume leaders included Advanced Micro Devices ( AMD), down $5.27 to $14.86; Nortel ( NT), up 14 cents to $3.48; Lucent ( LU), down 4 cents to $3.48; News Corp. ( NWS), down 20 cents to $16.93; Pfizer ( PFE), down 29 cents to $26.15; Hewlett-Packard ( HPQ), down 76 cents to $20.05; and General Electric ( GE), down 51 cents to $35.40. Nasdaq volume leaders included Sirius Satellite Radio ( SIRI), down 52 cents to $6.10; Intel ( INTC), down 34 cents to $22.54; Taser ( TASR), down $5.95 to $14.10; Microsoft ( MSFT), down 7 cents to $26.73; Oracle ( ORCL), up 1 cent to $13.20; Cisco ( CSCO), down 8 cents to $18.64; and Apple Computer ( AAPL), down $4.40 to $64.56.