Nov. 24 (Bloomberg) -- The following companies may have unusual price changes today in Latin American trading. Stock symbols are in parentheses and share prices reflect the previous close.

The MSCI Latin America Index rose 1.3 percent to 4,080.03. In Brazil, preferred shares usually are the most-traded class of stock.

Brazil

Cia. de Saneamento Basico do Estado de Sao Paulo (SBSP3 BS): Brazil’s biggest water utility said its board approved the issuance of 900 million reais ($521.3 million) in promissory notes, according to a regulatory filing. Sabesp, as the company is known, rose 1.1 percent to 32.30 reais.

Energisa SA (ENGI3 BS): The owner of five electricity- distributors in Brazil said three of its subsidiaries plan to sell as much as 200 million reais ($115.8 million) in local floating rate bonds that will trade at the interbank rate, known as DI, plus 1.9 percentage points per year, and will be due Dec. 15, 2014. Energisa rose 0.9 percent to 2.16 reais.

Gerdau SA (GGBR4 BS): Latin America’s biggest steelmaker was rated new “outperform” at Banco Safra by equity analyst Rogerio Zarpao. Gerdau closed little changed at 28.3 reais.

Petroleo Brasileiro SA (PETR4 BS): Brazil’s state- controlled oil producer made a new wage proposal in a bid to avert a strike, a labor union said. Union representatives will meet today to discuss the proposal and decide the next step, the union known as FUP, said in a statement on its Web site. Petrobras rose 0.9 percent to 38.85 reais.

PDG Realty SA Empreendimentos e Participacoes (PDGR3 BS): The real-estate investment company is issuing 13.8 million common shares to raise 117.2 reais ($67.8 million), it wrote a regulatory filing. PDG Realty rose 5 percent to 16.95 reais.

Mexico

Controladora Comercial Mexicana SAB (COMERUBC MM): Mexico’s National Banking and Securities Commission issued a record fine to Controladora Comercial Mexicana SAB and said an investigation into five other companies over their derivatives accounting is continuing. Comerci, as the Mexico grocery operator is known, and two executives were fined a record 49 million pesos ($3.7 million) for not properly disclosing positions and losses from currency derivatives they held, the agency said. The company, which said in a separate statement that it won’t appeal the fines, rose 1.4 percent to 10.99 pesos.

Wal-Mart de Mexico SAB (WALMEXV MM): Mexican retail sales declined 4.6 percent in September from the same month a year earlier, the country’s statistics agency said. Economists had forecast sales would drop 3.5 percent, according to the median estimate of 14 analysts surveyed by Bloomberg. Walmex, Latin America’s largest retailer, rose 0.7 percent to 53.62 pesos.

To contact the reporters on this story: James Attwood in Santiago at jattwood3@bloomberg.net

Last Updated: November 24, 2009 03:13 EST