Shares of

CarMax

(KMX) - Get Report

were among the

NYSE's

winners Wednesday, rising 9% after the operator of used-car dealerships posted better-than-expected second-quarter results and raised its full-year projections.

For the period ended Aug. 31, CarMax earned $54.3 million, or 50 cents a share, on revenue of $1.93 billion. Analysts polled by Thomson First Call expected earnings of 41 cents a share and revenue of $1.85 billion. During the year-earlier period, the company earned $37.6 million, or 35 cents a share, on revenue of $1.63 billion.

Looking ahead, CarMax now sees full-year earnings of $1.55 to $1.65 a share, well above its previous view of $1.25 to $1.47 a share. Analysts, on average, project earnings of $1.50 a share. The company's shares were trading up $3.43 to $43.57.

Shares of

Christopher & Banks

(CBK) - Get Report

climbed 8% after the women's clothing retailer posted second-quarter results that topped forecasts. For the period ended Aug. 26, the company earned $7.9 million, or 21 cents a share, up from $5.7 million, or 16 cents a share, a year earlier. Sales rose to $131.6 million from $110.8 million, while same-store sales increased 8%. Analysts expected earnings of 20 cents a share on sales of $129.4 million.

Christopher & Banks sees third-quarter earnings of 31 cents to 32 cents a share, above the 30 cents a share that analysts project. For all of fiscal 2007, Christopher & Banks raised its earnings forecast to $1.14 to $1.16 a share from a prior view of $1.06 to $1.10. Shares were trading up $2.17 to $29.78.

Boeing

(BA) - Get Report

shares rose nearly 2% after Russian flag carrier Aeroflot said it will buy an equal number of planes from both Boeing and rival Airbus. In addition, the

Wall Street Journal

reported that the Department of Homeland Security is set to award a $2 billion border patrol contract to a team led by Boeing. The Seattle-based company beat out teams led by defense contractors

Lockheed Martin

(LMT) - Get Report

,

Northrop Grumman

(NOC) - Get Report

and

Raytheon

(RTN) - Get Report

, the

Journal

reported. Boeing shares were up $1.18 to $76.05.

Park Electrochemical

(PKE) - Get Report

shares jumped 16% after the maker of printed circuit materials posted second-quarter earnings that beat expectations by a penny a share. For the quarter ended Aug. 27, Park earned $12.5 million, or 62 cents a share, on revenue of $66.5 million. Excluding items, the company earned $8.5 million, or 42 cents a share. Analysts expected earnings of 41 cents a share before items. During the year-earlier quarter, the company earned $6.1 million, or 30 cents a share, on revenue of $52.4 million. Shares recently changed hands at $30.21, up $4.21.

Shares of

Max Re Capital

( MXRE) fell 3% after the insurance company said that third-quarter earnings would be hurt by trading losses in certain hedge fund investments. The company expects the trading losses to cut earnings by $35 million. Analysts project third-quarter earnings of 78 cents a share. Shares were down 72 cents to $23.18.

Chaparral Steel

(CHAP) - Get Report

traded actively after the steel-beam maker posted better-than-expected first-quarter earnings. For the period ended Aug. 31, the company earned $59.1 million, or $1.23 a share, up from $17.8 million, or 39 cents a share, a year earlier. Analysts anticipated earnings of $1.04 a share. Chaparral's revenue rose to $410.6 million from $338.4 million.

"This is our sixth consecutive quarter of earnings growth, and we expect to continue similarly strong results as both domestic and international markets remain solid for structural products," Chaparral said. Shares were unchanged at $37.77. More than 1.2 million shares recently had changed hands, compared with the daily average of 1.0 million.

NYSE volume leaders included

Lucent

( LU), up 3 cents to $2.31;

Ford

(F) - Get Report

, up 9 cents to $7.75;

Corning

(GLW) - Get Report

, up 86 cents to $24.12;

Valero

( NT), down $1.10 to $49;

Time Warner

(TWX)

, up 10 cents to $17.49; and

Halliburton

(PFE) - Get Report

, down 78 cents to $28.32.

Nasdaq

volume leaders included

Oracle

(ORCL) - Get Report

, up $1.83 to $17.96;

Genta

( GNTA), down 28 cents to 82 cents;

Yahoo!

(YHOO)

, up 3 cents to $25.78;

Microsoft

(MSFT) - Get Report

, up 24 cents to $27.10;

Sun Microsystems

(SUNW) - Get Report

, up 6 cents to $5.18;

Intel

(INTC) - Get Report

, up 23 cents to $19.65;

JDSU

(JDSU)

, up 4 cents to $2.19; and

Sirius Satellite Radio

(SIRI) - Get Report

, up 10 cents to $3.96.