ROME, Nov 3 (Reuters) - Sales of new cars in Italy fell in October by 0.57% year-on-year to 125,826 units, transport ministry data showed on Monday.

In the first ten months of the year, sales were down 2.66% to 1.33 million compared to the same period of 2024, the ministry said.

Market leader Stellantis STLAM.MI, whose brands include Fiat, Jeep and Peugeot, bucked the negative trend, with year-on-year sales up by 4.45% in October, according to Reuters calculations.

Its market share stood at 26.6%, according to the same calculations.

Fiat, which is recovering from a recent slide in sales, was confirmed as Italy's most popular car brand in October, with a market share of 9.2%, up from 7.3% in October 2024.

Chinese brands BYD 002594.SZ and Chery's 9973.HK Omoda/Jaecoo reported the biggest jumps in October sales, with respective year-on-year increases of around 260% and 280%.

(Reporting by Alvise Armellini, editing by Gavin Jones)

((alvise.armellini@thomsonreuters.com;))