SAN FRANCISCO -- Among the shares expected to see active trade in Monday's session are home improvement retailer Lowe's, bond insurer Assured Guaranty and clothing retailer Pacific Sunwear.

Lowe's Cos. (LOW) is expected to report third-quarter earnings of 24 cents a share, according to a consensus survey by FactSet Research.

Assured Guaranty (AGO) is projected to post earnings of 36 cents a share in the third quarter.

Pacific Sunwear of California (PSUN) is forecast to post a third-quarter loss of 19 cents a share.

After Friday's closing bell, Brazil's state-run oil giant Petroleo Brasileiro (PBR) reported its third-quarter net earnings fell 26% to 7.3 billion reals ($4.24 billion) from 9.84 billion reals in the year-ago period. The decline, in part, reflects lower diesel and gasoline prices and the stronger Brazilian currency, the company said. Earnings before interest, taxes, depreciation and amortization was 13.99 billion reals compared with 15.1 billion reals.

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Paulson & Co., one of the world's largest hedge fund firms, held 300 million shares of Citigroup Inc. (C) at the end of September, according to a regulatory filing late Friday. Three months earlier, the firm had no stake in the financial-services giant. Paulson's Citi stake was valued at $1.45 billion on Sept. 30, according to the filing.

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