May 20 (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 1.4 percent to 2,883.32. In Brazil, preferred shares usually are the most-traded class of stock.

Brazil

Sadia SA (SDIA4 BS): The Brazilian food company taken over by Perdigao SA may have its B credit rating, five levels below investment grade, raised by Standard & Poor’s, the rating company said yesterday. Sadia fell 5.1 percent to 4.32 reais.

Bradespar SA (BRAP4 BS) and CPFL Energia SA (CPFE3 BS): Bradespar, the investment arm of Banco Bradesco SA, sold 16.6 million shares of Brazil’s largest private-sector electricity supplier, or 3.5 percent of shares, raising as much as 531.2 million reais ($260 million), Bradespar said in a filing yesterday. CPFL fell 5.7 percent to 31.74 reais. Bradespar rose 5.2 percent to 30.35 reais.

Mexico

Grupo Financiero Banorte SAB (GFNORTEO MM): Mexico’s central bank will cut interest rates by 0.5 percentage point to 4.75 percent, according to the median estimate of economists surveyed by Citigroup Inc.’s Banamex unit. The economists forecast that inflation will fall to 4.24 percent by the end of the year, the survey said. Banorte, Mexico’s largest publicly- traded lender, fell 0.6 percent to 27.18 pesos.

Wal-Mart de Mexico SAB (WALMEXV MM): Mexico’s economic contraction will intensify because of the outbreak of swine flu, Finance Minister Agustin Carstens said yesterday. Wal-Mart de Mexico, Mexico’s largest retailer, rose 1.6 percent to 39.71 pesos.

To contact the reporter on this story: Hugh Collins in Mexico City at Hcollins8@bloomberg.net

Last Updated: May 20, 2009 00:03 EDT