Spanish stocks - Factors to watch on Tuesday

MADRID, Aug 19 (Reuters) - The following Spanish stocks may be affected by newspaper reports and other factors on Tuesday. Reuters has not verified the newspaper reports, and cannot vouch for their accuracy:

ACS (ACS.MC)

ACS' debt will fall to around 10 billion euros with the sale of its Union Fenosa stake, however debt payments up to 2012 are too high to increase its stake in Iberdrola (IBE.MC) by as much as many speculate, financial website Hispanidad reported, citing figures from ACS' first half presentation.

FERROVIAL FER.MC

Spanish construction firm Ferrovial said on Monday it had completed the 13.3 billion pound ($24.84 billion) refinancing of its British airports which includes 3 billion pounds for new investment.

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