Even with the buybacks, he thinks the company can reduce its net debt-to-EBITDA ratio from 4.2x in 2010 to 3x in 2011, 2.2x in 2012 and 1.7x in 2013.

FORBES: Sirius XM: Citi Launches With Buy Rating, $2.20 Target

Selling for a ratio of six times enterprise value (market cap plus long-term debt) to EBITDA cash flow (earnings before interest, taxes, depreciation and amortization), Cemex looks cheap.

FORBES: One ratio does not fit all