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BOSTON ( TheStreet) -- TheStreet.com's stock-rating model upgraded Credicorp ( BAP), a Peruvian bank, to "buy."

The numbers: Second-quarter earnings increased 56% to $115 million, or $1.44 a share, as revenue climbed 26% to $546 million. Its gross margin rose from 67% to 70% and its operating margin increased from 42% to 49%. The company holds $3.5 billion of reserves, compared to $2.9 billion of debt. Its cash balance has grown 11% since last year's second-quarter.

The stock: Credicorp is up 42% this year, beating major U.S. indices. The stock trades at a price-to-earnings ratio of 17, a discount to banking peers and the market. The shares offer a 2.1% dividend yield.

The model upgraded fast-food chain Burger King ( BKC) to "buy."

The numbers: Fiscal fourth-quarter revenue declined 2% to $630 million, but profit jumped 16% to $59 million, or 43 cents a share. Its gross margin dropped from 38% to 33% and its operating margin fell from 14% to 13%. Burger King has less-than-ideal liquidity, demonstrated by its quick ratio of 0.6. A debt-to-equity ratio of 0.9 indicates reasonable leverage.

The stock: Burger King has fallen 27% this year, lagging behind major U.S. indices. The stock trades at a price-to-earnings ratio of 12, a discount to other restaurants and the market. The shares offer a dividend yield of 1.4%.

The model upgraded Buckeye Technologies ( BKI), a maker of wood and cotton-based specialty products, to "hold."

The numbers: Fiscal fourth-quarter revenue dropped 18% to $177 million, but profit surged 400% to $46 million, or $1.20 a share, due to alternative fuel mixture credits. Its gross margin rose from 21% to 22%, but its operating margin fell from 9% to 8%. Buckeye has impressive liquidity, reflected by its quick ratio of 2. But a debt-to-equity ratio of 1 indicates higher-than-ideal leverage.

The stock: Buckeye Technologies has rocketed 167% this year, outpacing major U.S. indices. The company succumbed to losses in the previous three quarters. The company doesn't pay dividends.

The model downgraded Seaboard ( SEB), whose businesses range from pork production to commodity trading, to "hold."

The numbers: Second-quarter revenue fell 13% to $870 million, but profit rose 28% to $27 million, or $21.76 a share. Its gross margin climbed from 7% to 9%, but its operating margin was less than 1%. Seaboard has a strong financial position, evident in its quick ratio of 1.4 and debt-to-equity ratio of 0.1.

The stock: Seaboard is down 9% this year, trailing major U.S. indices. The stock trades at a price-to-earnings ratio of 14, a discount to other conglomerates and the market. The shares offer a dividend yield less than 1%.

The model initiated coverage of SinoHub ( SIHI) at "hold." SinoHub sells supply-chain software to electronic component makers in China.

The numbers: Second-quarter net income advanced 489% to $3.2 million and earnings per share climbed 225% to 13 cents, restrained by a higher share count. Revenue more than doubled to $31 million. SinoHub has ample liquidity, demonstrated by its quick ratio of 2.4, and modest leverage, reflected by its debt-to-equity ratio of 0.2.

The stock: SinoHub is down 2% this year, lagging behind major U.S. indices. The stock trades at a price-to-earnings ratio of 7, a discount to software peers and the market. The company doesn't pay dividends.

-- Reported by Jake Lynch in Boston.

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