The FTSE MIB Index decreased 19 points or 0.04 percent on Monday to close at 51863 points.
The decline was led by Avio (-2.81%), Enel (-2.64%) and Telecom Italia (-1.91%).
On the upside, the strongest performers were Moncler (3.16%), Amplifon (2.61%) and STMicroelectronics (2.01%).