CORRECTED-Italy starts marketing syndicated dual-tranche BTP bond issue

MILAN, June 4 (Reuters) - Italy's Treasury on Wednesday started marketing via syndication a dual-tranche issue consisting of a new 5-year BTP and a tap of a Green BTP bond maturing in 2037.

Rome has set the initial yield guidance for the 5-year issue due October 1, 2030 at around 10 basis points over the outstanding BTP maturing on July 2030, lead managers said.

For the top-up of the Green BTP - expiring on October 30, 2037 - the initial yield guidance was set at around 9 basis points over the outstanding BTP maturing in March 2037.

The Treasury said on Tuesday it had hired Banco Santander, Barclays, BNP Paribas, BofA Securities, Credit Agricole and Société Générale for the sale.