Shares in Mexico's Cemex fall more than 8 pct as peso slumps

Shares in Mexican cement giant Cemex fell more than 8 percent on Wednesday, punished by a record low peso exchange rate which ratchets up its debt load.

Cemex is burdened with a heavy dollar-denominated debt load from its 2007 acquisition of Australian building products company Rinker, and has been focusing on reducing debt in a bid to regain an investment-grade rating by 2018.

The peso hit a record low on Wednesday, reaching 18.6 pesos to the dollar.