Bank of Greece (TELL.AT) serves as the central bank of Greece and an integral member of the Eurosystem, headquartered in Athens and founded in 1927. It participates in the formulation and implementation of euro area monetary policy through the European Central Bank Governing Council; conducts monetary policy operations including liquidity provision to credit institutions via refinancing and standing facilities; maintains reserve accounts for banks; supervises credit institutions and insurance companies under the Single Supervisory Mechanism; acts as the national resolution authority for financial institutions; oversees payment, securities settlement, and clearing systems; monitors financial stability and systemic risks; manages government accounts as fiscal agent; issues euro banknotes and coins; compiles monetary, credit, balance of payments, and financial statistics; buys and sells gold; provides foreign exchange services including daily rates; and offers information on secondary securities and foreign exchange markets, primarily serving the Greek financial system with operations concentrated in Greece and branches in key cities such as Thessaloniki, Patra, and Iraklio. In recent developments, Governor Yannis Stournaras has expressed support for additional cross-border banking deals to advance banking union and capital markets union as of September 2025; the bank continues active oversight amid surging Greek M&A activity, up 34.2% in Q1 2025 versus the prior year, including notable transactions like UniCredit doubling its stake in Alpha Bank to nearly 20% in May 2025 and Piraeus Bank's completion of the Ethniki Insurance acquisition in November 2025.