Shares of Advance Auto Parts ( AAP - Get Report) were among the NYSE's losers Thursday, tumbling 16% after the auto parts retailer cut its second-quarter earnings forecast.

For the period ending July 15, the company now sees earnings of 57 cents to 59 cents a share, down from an earlier view of 65 cents to 68 cents. Analysts polled by Thomson First Call project earnings of 66 cents a share. Advance Auto Parts now sees same-store sales growth of 1% to 2%, down from an earlier forecast of 3% to 5%. "We believe that macro-economic factors, including higher energy prices, ever-higher interest rates, and higher required credit card payments are further reducing discretionary income for our lower- and middle-income customers and has unfavorably impacted customer traffic," the company said. Shares were trading down $5.86 to $30.04.

Manitowoc ( MTW - Get Report) jumped 10% after the maker of heavy-lifting equipment said its second-quarter earnings would top analysts' forecast by 10 cents a share. Analysts project earnings of 70 cents a share, according to First Call. Manitowoc now sees full-year earnings of $2.50 to $2.60 a share, well ahead of its earlier view of $2.15 to $2.25 a share. Analysts expect earnings of $2.36 a share. "Our global leadership in the lifting industry continues to drive Manitowoc's strong financial performance," the company said. Manitowoc plans to issue second-quarter results on July 26. Shares were trading up $3.72 to $39.99.

Shares of Worthington Industries ( WOR - Get Report) rose 7% after the metal processing company posted better-than-expected fiscal fourth-quarter earnings. The company reported earnings of $59.4 million, or 67 cents a share, for the quarter ended May 31, including a one-time pretax gain of $26.6 million, or 14 cents a share. Analysts expected earnings of 40 cents a share. Worthington reported revenue of $822 million, topping Wall Street's target of $771.9 million. In the year-earlier period, the company earned $40.8 million, or 46 cents a share, on revenue of $817 million. "Every business segment performed well, with our pressure cylinders segment leading the way by producing a record performance in both sales and earnings," the company said. Shares were up $1.25 to $19.85.

Ruth's Chris Steak House ( RUTH - Get Report) rose 3% after the restaurant operator previewed better-than-expected second-quarter sales. The company estimates total revenue of $60.3 million to $60.5 million. Analysts project revenue of $59.9 million. Company-owned restaurant sales, meanwhile, increased 17% to $57.4 million. Company-owned comparable-store sales rose 6%. Ruth's Chris plans to post second-quarter results during the week of July 24. Shares were trading up 53 cents to $20.63.

Shares of MSC Industrial Direct ( MSM - Get Report) rose 7% after the industrial supplies company reported better-than-expected third-quarter results. For the period ended May 27, the company earned $37 million, or 54 cents a share, on revenue of $329.8 million. Analysts expected earnings of 53 cents a share, with revenue of $325 million. A year earlier, the company earned $30.7 million, or 44 cents a share, on revenue of $288.5 million.

For the fourth quarter, MSC industrial sees earnings of 49 cents to 53 cents a share. The company predicts revenue of $382 million to $388 million. Analysts project earnings of 49 cents a share and revenue of $350 million. Shares were trading at $46.85, up $3.10.

American Greetings ( AM) slid 9% after the greeting card company posted softer-than-anticipated first-quarter earnings and offered a cautious outlook. For the period ended May 26, the company posted earnings from continuing operations of $16 million, or 25 cents a share, on sales of $406.6 million. Analysts expected earnings of 26 cents a share. Last year, the company reported first-quarter earnings from continuing operations of $26.9 million, or 36 cents a share, on sales of $439.5 million.

Looking ahead, American Greetings said it expects expenses to pressure the company's earnings outlook for the remainder of the year. "Beyond the seasonality of the business, the company anticipates expenses related to its strategic card and scan-based trading initiatives will continue to put downward pressure on operating earnings during the second fiscal quarter as well as for the remainder of fiscal 2007," the company said. Shares were trading down $2.22 to $22.81.

Shares of Talx fell 9% after the employment- and income-verification company said it is being probed by the Federal Trade Commission. The inquiry relates to "whether Talx acquisitions in the unemployment compensation and Work Number businesses have significantly reduced competition," Talx said in a press release. Talx believes that it is in compliance with regulatory filing requirements and plans to cooperate with the Commission's inquiry, the company said. Shares were trading at $21.36, down $2.17.

NYSE volume leaders included Tenet Healthcare ( THC), up 17 cents to $7.40; Nortel Networks , up 8 cents to $2.24; Ford ( F), down 11 cents to $6.25; Micron Technology ( MU), down 89 cents to $15.07; Exxon Mobil ( XOM - Get Report), up 79 cents to $61.91; Qwest ( Q), up 14 cents to $8.01; EMC ( EMC), down 20 cents to $11.05; Home Depot ( HD), down 23 cents to $35.93; Motorola , up 13 cents to $19.44; and General Electric ( GE), unchanged at $32.93.

Nasdaq volume leaders included Microsoft ( MSFT), up 32 cents to $23.48; JDSU ( JDSU), down 1 cent to $2.44; Intel ( INTC), up 18 cents to $18.84; Red Hat , down $2.25 to $22.76; Sirius Satellite Radio ( SIRI), up 9 cents to $4.75; ATI Technologies , down $1.24 to $14.26; Oracle ( ORCL), unchanged at $14.58; Neoware , down $8.46 to $11.73; Cisco Systems ( CSCO), up 3 cents to $19.41; Applied Materials ( AMAT), unchanged at $16.07; and Sun Microsystems ( SUNW), up 3 cents to $4.07.