KBR, RadioShack, WebMD Health are big movers

NEW YORK (AP) — The following stocks were among those that moved substantially or traded heavily Monday on the New York Stock Exchange:

NYSE:

KBR Inc., down $1.41 at $22.61

An analyst downgraded the military contractor and said profit could decline significantly this year as U.S. troops exit Iraq.

ION Geophysical Corp., up 90 cents at $4.44

The world's largest land seismic contractor announced a global joint venture that will dramatically cut its debt.

RadioShack Corp., up $2.49 at $18.15

RadioShack's third-quarter profit slipped as it closed some kiosks and dealt with a continued pullback in consumer spending.

Symmetry Medical Inc., down $1.72 at $7.84

Symmetry slashed its annual profit and revenue forecasts, saying demand from orthopedic and non-orthopedic customers has been weak.

NASDAQ:

Ares Capital Corp., up $1.30 at $11.99

The finance company will buy Allied Capital Corp., which provides financing for buyouts, in an all-stock deal worth $648 million.

WebMD Health Corp., down 21 cents at $34.07

Ananalyst raised his rating on the stock after the health Web site operator completed a merger with HLTH Corp., its former parent.

Sohu.com Inc., down $11.43 at $59.92

The major Chinese Web portal's quarterly earnings fell on lower revenue from its online games unit, while total sales rose to a record.

BioCryst Pharmaceuticals Inc., up $1.28 at $10.94

The experimental drug peramivir received emergency use authorization from the Food and Drug Administration as a swine flu treatment.