Sept. 27 (Bloomberg) -- The following is a list of companies whose shares are having unusual price changes in U.S. exchanges today. Stock symbols are in parentheses after company names. Share prices are as of 2:54 p.m. in New York.

Baytex Energy Trust (BTE US) advanced 86 cents, or 4.4 percent, to $20.23, the highest since July 19. The investment trust with oil and natural gas properties in Canada is a takeover target, CNBC host Jim Cramer said.

Chattem Inc. (CHTT US) gained $4.52, or 6.7 percent, to $71.99, the highest since January 1985. The maker of Gold Bond foot powder and Selsun Blue shampoo reported third-quarter profit of 90 cents a share excluding some items. The average estimate among 10 analysts is 74 cents in a Bloomberg survey.

China Natural Gas Inc. (CHNG US) climbed the most since April 19, adding $1.15, or 20 percent, to $6.90. The company, which operates a natural gas pipeline in China, said it won government approval for a diversified natural gas project in Shaanxi province.

China Telecom Corp. American depositary receipts (CHA US) climbed $9.16, or 14 percent, to $76.94, the highest since November 2002. Shares of China's biggest fixed-line telephone operator rose on speculation the government will allow fixed-line phone companies to offer wireless services.

China Netcom Group Corp. (Hong Kong) Ltd. (CN US), the nation's second-biggest fixed-line telephone operator, added 5.4 percent to $54.01.

Shares of Chinese wireless entertainment and ringtone providers rallied. KongZhong Corp. ADRs (KONG US) surged 57 percent to $7.80. Linktone Ltd. ADRs (LTON US) jumped 31 percent to $3.99. Hurray! Holdings Co. ADRs (HRAY US) climbed 25 percent to $5.80.

China BAK Battery Inc. (CBAK US), a Chinese maker of rechargeable batteries for mobile phones, advanced 22 percent to $8.97.

ADRs of APT Satellite Holdings Ltd. (ATS US), a China-backed owner of communications satellites, soared 50 percent to $2.54. Orsus Xelent Technologies Inc. (ORS US), a Chinese mobile-phone maker, gained 26 percent to $3.59.

Copart Inc. (CPRT US) gained $3.86, or 13 percent, to $33.83, the highest since March 1994. The provider of vehicle salvage services said that, excluding some items, it earned 40 cents a share in the fiscal fourth quarter. The average estimate from analysts in a Bloomberg survey was 35 cents.

EchoStar Communications Corp. (DISH US) rose $2.96, or 6.8 percent, to $46.43, the highest since June 4. AT&T Inc. is offering to buy the second-largest U.S. satellite television provider for $55 a share, or $24.6 billion, TheStreet.com reported. EchoStar spokeswoman Francie Bauer declined to comment on reports the companies are in talks. AT&T spokesman Michael Coe also declined to comment.

Embarq Corp. (EQ US) fell $1.96, or 3.3 percent, to $57.81, the lowest since Aug. 9. The fourth-largest local-phone provider in the U.S. was cut to ``underweight'' from ``equal-weight'' at Morgan Stanley. Analyst Simon Flannery said the company has ``significant exposure'' to some of the areas worst hit by the housing recession, including Florida and Nevada.

Gardner Denver Inc. (GDI US) gained the most since Aug. 10, climbing $2.30, or 6.3 percent, to $38.90. The maker of air compressors and blowers was recommended by CNBC's Cramer because of demand for its products by the oil industry. He said it also will benefit from a weak exchange rate when selling to Europeans.

Genesis Lease Ltd. (GLS US) rose 84 cents, or 3.5 percent, to $24.75, the highest since Aug. 2. The commercial aircraft lessor that first sold shares to the public in December agreed to buy eight planes from a unit of General Electric Co.

Micron Technology Inc. (MU US) gained the most since Feb. 6, adding 70 cents, or 6.5 percent, to $11.45. The largest U.S. maker of computer-memory chips is likely to report fiscal fourth- quarter earnings that will exceed analysts' estimates on Oct. 2, Lazard Capital Markets LLC analyst Daniel Amir wrote in a note.

Moody's Corp. (MCO US) rose $2.51, or 5.3 percent, to $49.90, the highest since Aug. 17. Shares of the oldest credit- rating company and McGraw-Hill Cos. (MHP US), owner of Standard & Poor's, gained on speculation they won't face penalties for their role in the subprime-mortgage crisis. McGraw-Hill added 4.5 percent to $51.97.

Mylan Laboratories Inc. (MYL US) rose 49 cents, or 3.2 percent, to $16.02, the highest since Aug. 1. The maker of generic medicines got U.S. antitrust clearance to complete its $6.6 billion purchase of Merck KGaA's global generics unit on condition the companies sell assets related to five drugs they produce in the U.S., the U.S. Federal Trade Commission said in a statement.

Paychex Inc. (PAYX US) fell the most since December 2005, losing $1.60, or 3.7 percent, to $41.98. The company, which sells payroll and human-resources services, reported revenue of $507.1 million in the fiscal first quarter. That missed the average estimate of $512 million by analysts in a Bloomberg survey.

Progressive Gaming International Corp. (PGIC US) gained the most since Sept. 4, rising 26 cents, or 5.3 percent, to $5.13. Shuffle Master Inc. (SHFL US), the maker of casino roulette-chip sorters and card shufflers, said it will buy Progressive Gaming's worldwide table game division for about $30 million.

Rite Aid Corp. (RAD US) lost the most since Aug. 6, falling 23 cents, or 4.6 percent, to $4.82. The third-biggest U.S. drugstore chain said its second-quarter loss widened on costs from its purchase of the Eckerd and Brooks chains. The company lowered its sales forecast and expects a wider loss for the year.

SiRF Technology Holdings Inc. (SIRF US) rose the most since Jan. 31, climbing $1.96, or 10 percent, to $21.45. The maker of chips for global positioning system mobile telephones was raised to ``outperform'' from ``neutral'' at Credit Suisse. Analyst Amit Saraf said that ``strong'' holiday GPS sales and potential revenue from Motorola Inc. handsets will boost profit.

SLM Corp. (SLM US) rose the most since April 16, gaining $3.66, or 8.1 percent, to $48.67. The largest U.S. student-loan company rejected an overture from investors led by J.C. Flowers & Co. to renegotiate their $25.3 billion leveraged buyout agreement. SLM, better known as Sallie Mae, said in a statement that it would ``pursue all remedies available'' to complete the deal as originally set. Friedman Billings Ramsey & Co. reiterated its ``outperform'' rating on SLM, saying it doesn't expect the buyout group to walk away from the deal.

Starbucks Corp. (SBUX US) lost the most since February 27, falling $1.08, or 3.9 percent, to $26.61. The world's largest chain of coffee shops was cut to ``sell'' from ``neutral'' at Banc of America on expectations profit growth will slow. Analysts including Andrew M. Barish said challenges include slower same- store sales, margin pressures, competition and weak consumer demand.

Superior Well Services Inc. (SWSI US) gained the most since Aug. 10, rising $1.36, or 6.2 percent, to $23.37. The oilfield services company will replace Neoware Inc. in the Standard & Poor's SmallCap 600.

Tesoro Corp. (TSO US) fell the most since August 3, dropping $2.36, or 4.8 percent, to $47.34. The owner of seven U.S. refineries may be hurt by a decline in West Coast refining margins, according to analysts at Friedman, Billings, Ramsey & Co. They also cut Tesoro's third-quarter profit estimate to 95 cents a share from their previous estimate of $2.33.

The Pantry Inc. (PTRY US) fell to the lowest since December 2004, dropping $1.55, or 5.4 percent, to $27.13. The owner of Kangaroo Express convenience stores in the southeastern U.S. cut its full-year profit forecast because of lower margins on gasoline sales.

Traffix Inc. (TRFX US) gained the most since December 1999, rallying $1.54, or 32 percent, to $6.30. The Internet direct marketer agreed to merge with New Motion Inc. (NWMO US). Shareholders of Traffix will receive approximately 0.683 of New Motion share for each share they own, valuing Traffix at $10.59 a share.

Trident Microsystems Inc. (TRID US) gained 96 cents, or 6.4 percent, to $15.93, the highest since Aug. 7. The maker of computer graphics chips was initiated at ``buy'' by Goldman Sachs analyst James Schneider. The 12-month price target is $24 a share.

Washington Banking Co. (WBCO US) rallied the most since June 1998, rising $4.75, or 31 percent, to $20.05. The holding company for Whidbey Island Bank agreed to be acquired by Frontier Financial Corp. (FTBK US) for $191.1 million in cash and stock.

Wendy's International Inc. (WEN US) added $1.13, or 3.4 percent, to $34.76, the highest since Aug. 2. The third-largest U.S. hamburger chain got two new groups of bidders as it prepares to move into the second round of its auction, the Wall Street Journal said, citing a person familiar with the situation.

To contact the reporter on this story: Eric Martin in New York at emartin21@bloomberg.net.

Last Updated: September 27, 2007 15:30 EDT