
Borsa Italiana
Italy’s principal securities exchange and operator of the country’s organized capital markets.
Last updated October 6, 2026
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Overview
Borsa Italiana, also known in English as the Italian Stock Exchange and informally as the Milan Stock Exchange or Piazza Affari, is Italy’s central venue for organized securities trading. It is headquartered at Palazzo Mezzanotte in Milan, the building associated with the Piazza degli Affari business district. The exchange organizes and manages Italian equity, bond, exchange-traded fund, investment-vehicle and derivatives markets, while also setting admission and listing procedures for issuers and intermediaries and overseeing the disclosure obligations of listed companies within the framework established by Italian regulation. The institution traces its history to the Milan exchange founded in 1808 through decrees issued by Eugène de Beauharnais, viceroy of the Napoleonic Kingdom of Italy. For much of its history, Milan operated alongside a number of regional Italian exchanges, including venues in Genoa, Turin, Trieste, Venice, Florence, Bologna, Rome, Naples and Palermo. Milan’s importance increased over time, particularly after the Panic of 1907, and it ultimately became the country’s dominant exchange. Electronic trading was approved in 1991, while several traditional market arrangements were subsequently replaced as the Italian market moved toward a more standardized and technology-based structure. A major institutional transformation occurred during the 1990s. Italy’s separate equity markets were consolidated in 1997, and the exchange was privatized. The modern privately operated Borsa Italiana became effective on 2 January 1998. This transition gave the exchange greater operational autonomy and positioned it to develop a broader set of specialized markets for large companies, smaller growth businesses, investment vehicles, bonds, exchange-traded products and derivatives. Borsa Italiana became part of the London Stock Exchange Group after an all-share transaction completed on 1 October 2007. It subsequently operated within one of Europe’s largest exchange groups, although it retained its Italian market identity and local regulatory responsibilities. In 2020, the London Stock Exchange Group agreed to sell the Italian exchange to Euronext in a transaction valued at €4.3 billion. The acquisition was completed on 29 April 2021 after Italian institutional investors CDP Equity and Intesa Sanpaolo became shareholders of Euronext. Borsa Italiana therefore became part of Euronext’s pan-European exchange network. The exchange has been expected to move toward the Euronext Milan branding, but the Borsa Italiana identity remains widely used. Its principal equity market historically included the MTA, with the STAR segment serving qualifying mid-sized companies and MTA International providing a venue for shares of non-Italian issuers already admitted to other European markets. AIM Italia was designed for small and medium-sized companies with growth ambitions, while MIV served investment vehicles. Other major market lines include IDEM for derivatives, ETFplus for exchange-traded funds and similar products, and MOT for bonds. The exchange also supports the publication and administration of important Italian equity benchmarks, including the FTSE MIB, FTSE Italia All-Share, FTSE Italia Mid Cap, FTSE Italia Small Cap and indices associated with AIM Italia. Trading is conducted electronically. The published schedule includes a pre-market phase, a regular session from 9:00 a.m. to 5:30 p.m., and an evening post-market session, subject to exchange holidays and operating rules. Borsa Italiana is supervised by CONSOB, Italy’s securities-market regulator. Its role combines market infrastructure, listing administration, trading organization and issuer-supervision functions, making it a central institution in Italy’s financing system rather than a consumer-facing product brand.
History
The history of Borsa Italiana is rooted in Milan’s long-standing role as a commercial and financial center. A Milan stock exchange was established in 1808 during the Napoleonic period, providing an organized venue for securities transactions. Over the following decades, the exchange developed alongside the Italian state, banking system, industrialization, and the growth of public debt and corporate finance. For much of the twentieth century, the Italian exchange operated within a highly regulated national framework. Equity, bond, and derivatives trading were progressively modernized as Italy’s economy became more integrated with European financial markets. The market structure was reorganized in the 1990s, culminating in the creation of Borsa Italiana S.p.A. as a privately managed exchange company and the transfer of exchange operations from the former public institutional framework. This transition established the corporate basis of the modern Borsa Italiana brand. The exchange expanded its product range and technology during the late 1990s and early 2000s. Its activities came to include the principal Italian equity market, bond trading through MOT, derivatives through IDEM, and specialist segments for smaller companies, investment vehicles, and other securities. In 2004, Borsa Italiana and the Financial Times Stock Exchange group created FTSE Italia, later connecting Italian benchmark and index services with the wider FTSE index business. In 2007, the London Stock Exchange Group completed its acquisition of Borsa Italiana. The transaction made Borsa Italiana part of a broader international exchange group and supported closer integration of trading technology, market data, clearing relationships, and issuer services. The Italian exchange continued to operate under its own national identity and remained the central listing and trading venue for Italian securities. A major ownership change followed in 2021. Euronext completed the acquisition of the Borsa Italiana group from London Stock Exchange Group. The transaction added Italy to Euronext’s network of European regulated markets and expanded Euronext’s activities in cash equities, fixed income, derivatives, listings, indices, data, and post-trade services. Borsa Italiana now functions as the Italian component of that network, with its Milan-based market venues and issuer relationships integrated into Euronext’s broader European strategy. The organization’s current significance derives from continuity as well as ownership change. It preserves the historical identity of Italy’s stock exchange while operating within a modern, cross-border market-infrastructure group. Its venues provide access to Italian equities and fixed income, its derivatives market supports hedging and price discovery, and its indices and data products serve investment professionals and public market observers. Regulatory oversight, European market rules, and changes in trading technology continue to shape the way the Borsa Italiana business is organized and branded.
- 2021
Euronext acquisition completed
[3]Euronext completed its acquisition of the Borsa Italiana group from London Stock Exchange Group.
- 2007
Acquisition by London Stock Exchange Group
[4]Borsa Italiana became part of London Stock Exchange Group after completion of the group’s acquisition.
- 1997
Modern private exchange company begins operations
[1]The Italian exchange was reorganized as a privately managed company, creating the corporate structure associated with modern Borsa Italiana.
- 1808
Milan stock exchange established
[1]A Milan stock exchange was established, providing the historical foundation for the modern Borsa Italiana institution.
Products and positioning
Core infrastructure for Italian capital formation, securities trading, listing, benchmark construction, and market information within the Euronext pan-European network.
Equities
Euronext Milan
The principal Italian equity listing and trading venue associated with Borsa Italiana. It provides access to shares of Italian and international companies and includes segments designed for different issuer profiles, liquidity characteristics, and investor needs.
Bonds
MOT
Borsa Italiana’s electronic bond market for listed fixed-income instruments. It has provided a transparent venue for trading government and corporate bonds and has served both institutional and retail-oriented market activity.
Derivatives
IDEM
The Italian derivatives market associated with Borsa Italiana. It supports trading in equity and index derivatives, giving market participants tools for hedging, exposure management, arbitrage, and price discovery.
Index
FTSE MIB
Italy’s leading large-cap equity benchmark, representing major and liquid companies traded on the Italian market. The index is used as a market reference and as an underlying for investment products and derivatives.
Equity market segment
Euronext STAR Milan
A specialist segment for companies meeting enhanced requirements relating to transparency, governance, liquidity, and investor communication. It is intended to improve the visibility and market access of qualifying Italian issuers.
Brand decisions
2021
Transfer to Euronext ownershipM&ABackground
London Stock Exchange Group agreed to sell Borsa Italiana as part of the remedies connected with its acquisition of Refinitiv.
Action taken
Euronext completed the acquisition of the Borsa Italiana group, adding the Italian exchange business to its European network.
Aftermath
Borsa Italiana became an Euronext group company and an important Italian operating center for listings, trading, derivatives, fixed income, indices, and market services.
2007
Join the London Stock Exchange GroupM&ABackground
Borsa Italiana operated in a consolidating international exchange sector in which scale, technology, liquidity, and cross-border distribution were increasingly important.
Action taken
The company accepted the acquisition by London Stock Exchange Group and became part of the combined exchange group.
Aftermath
Borsa Italiana retained its Italian market role while gaining a parent with international exchange, technology, and market-data capabilities.
Recent events
- 2021
Borsa Italiana becomes part of Euronext[3]
M&A
Euronext completed the acquisition of the Borsa Italiana group from London Stock Exchange Group, bringing the Italian exchange business into Euronext’s pan-European market infrastructure.
- 2020
London Stock Exchange Group agrees to sell Borsa Italiana to Euronext[5]
M&A
The London Stock Exchange Group entered exclusive discussions and agreed a €4.3 billion sale of the Italian exchange to Euronext.
- 2007
London Stock Exchange Group acquires Borsa Italiana[4]
M&A
Borsa Italiana entered the London Stock Exchange Group following completion of the acquisition, linking the Italian exchange with a larger international exchange operator.
- 2007
Borsa Italiana joins London Stock Exchange Group[5]
M&A
An all-share transaction made Borsa Italiana a subsidiary of the London Stock Exchange Group.
Sources7 sources
- 1Borsa Italiana historyborsaitaliana.it
- 2Borsa Italiana official market and company informationborsaitaliana.it
- 3Euronext completes acquisition of Borsa Italianaeuronext.com
- 4London Stock Exchange Group historylseg.com
- 5伦敦证券交易所集团同意将Borsa Italiana出售给泛欧交易所en.wikipedia.org
- 6Sisal files for IPO on Borsa stock exchangeigamingbusiness.com
- 7Tabula enters “dynamic” Italian ETF marketfunds-europe.com
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