Citigroup, Goldman, Harris, Oracle, Palm: U.S. Equity Movers

By Elizabeth Campbell and Whitney Kisling

Sept. 19 (Bloomberg) -- The following companies had unusual price changes in U.S. trading. Stock symbols are in parentheses, and share prices are as of 7:50 a.m. in New York.

Financial companies gained after the U.S. Treasury and Federal Reserve announced plans to halt the credit-market seizure and British and American regulators began cracking down on short sellers.

Citigroup Inc. (C US) added 17 percent to $19.52. Royal Bank of Scotland Plc. (RBS US) jumped 15 percent to $4.03. Wachovia Corp. climbed 25 percent to $18.15.

American International Group Inc. (AIG US) surged 29 percent to $3.46. Goldman Sachs Group Inc. (GS US) added 24 percent to $133.50. Washington Mutual Inc. climbed 30 percent to $3.90. Morgan Stanley increased 27 percent to $29. State Street Corp. (STT US) rose 18.9 percent to $59.

Harris Stratex Networks Inc. (HSTX US): The wireless- services provider boosted its revenue forecast for the first quarter to as much as $195 million. The stock rose 2.7 percent to $7.92 in trading yesterday.

Lockheed Martin Corp. (LMT US): The world's largest defense company said it won a $485 million contract from the National Aeronautics and Space Administration to design, build and operate a spacecraft to probe the atmosphere of Mars. The stock rose $7.79 to $113.82 in yesterday's trading.

Oracle Corp. (ORCL US) rose 11 percent to $20.90. The world's second-largest software maker reported earnings that topped analysts' projections last quarter after clients bought more database programs and renewed contracts for upgrades.

Palm Inc. (PALM US) fell 9 percent to $7.69 in late trading yesterday. The company reported a fifth-straight quarterly loss after sales of its Treo and Centro e-mail phones fell further behind Research in Motion Ltd.'s (RIMM US) BlackBerry.

To contact the reporters on this story: Elizabeth Campbell in New York at Ecampbell11@bloomberg.netWhitney Kisling in New York at wkisling@bloomberg.net