As of July 1, 2026, the 15 listed companies participate from Ministry of Economy and Finance (MEF) they capitalized overall 394,8 billion euros, Equal to 34,1 % of the overall capitalization of Piazza Affari. Compared to 1 January 2026, when the value was 310,3 billion (29,5% of the list price), the capitalization increased by 84,4 billion euros (+ 28,5 %).
State-owned companies: how much are the 15 Treasury companies worth on the stock market?
In comparison, the entire Italian Stock Exchange has grown up of the 10,06 % in the same period, going from a capitalization of 1.051,9 billion to 1.157,8 billion euros. The data were processed by CoMar, under theFinancial Observatory Directed by Massimo Rossi, and concern the 15 publicly traded companies. Here are the names:
- Mps Bank
- Enav
- Enel
- Eni
- Fincantieri
- Italgas
- Leonardo
- nexi
- Poste Italiane
- Rai Way
- Saipem
- Snam
- St Microelectronics
- Terna
- Trevi Industrial Finance.
According to the analysis, the total value of the shares held by the State in listed companies amounts to 133,4 billion eurosAmong the companies with the largest capitalization are: Enel 101,6 billion euros (8,77% of the list price); Eni 62 billion (5,35%); STMicroelectronics 59,2 billion (5,11%); Poste Italiane 37,1 billion (3,21%); Mps Bank 32,8 billion (2,83%); Leonardo 27,3 billion (2,36%); Snam 20,9 billion (1,8%); Terna 20,4 billion (1,76%). Followed by Italgas (10,1 billion), Saipem (8,7 billion), nexi (4,1 billion), Fincantieri (3,5 billion), Enav (2,7 billion), Trevi Industrial Finance (2,6 billion) e Rai Way (1,3 billion), all with a weight of less than 1% of the list price.
State-owned companies: increases and rankings
In the first half of 2026 the most significant capitalization increases were registered by Trevi Finanziaria Industriale
STMicroelectronics (+189,21%), Saipem (+80,45%), Poste Italiane (+32,5%), Eni (+22,13%), Banca MPS (+18,53%), Nexi (+16,99%), Enel (+12,59%), Terna (+12,27%), Snam (+10,11%), Enav (+8,51%), and Italgas (+4,78%). Leonardo (-3,9%), Rai Way (-12,7%), and Fincantieri (-32,19%) all fell.
As for the value of public shareholdingsThe largest stakes are in STMicroelectronics (€29,6 billion, equal to 50% of the capital), Enel (€23,9 billion; 23,6%), Poste Italiane (€23,8 billion; 64,26%), Eni (€20,5 billion; 33,09%), Leonardo (€8,2 billion; 30,2%), Snam (€6,5 billion; 31,4%), and Terna (€6,1 billion; 29,9%). They are followed by Italgas (€3,9 billion), Saipem (€2,9 billion), Fincantieri (€2,2 billion), Banca Mps (€1,5 billion), Enav (€1,4 billion), Rai Way (€861,4 million), Nexi (€806,8 million), and Trevi Finanziaria Industriale (€559,9 million).
In overall ranking Of the companies listed on Euronext Milan, five of the top ten are state-owned: Enel (third), Eni (sixth), StMicroelectronics (seventh), Poste Italiane (ninth) and Banca Mps (tenth).
