The Irish Stock Exchange has reported pretax profits of €4.6m, down €0.9m on 2010 after an exceptional pension charge of €2m.
The ISE said the charge was as a result of a decision to close the stock exchange's defined benefit pension scheme last year.
This has been replaced by a defined contribution plan.
The Stock Exchange posted revenues of €21.3m, an increase of 4% on 2010 and despite the challenging environment in international capital markets.
Primary market business - from listing international funds and debt securities - edged up to €13.7m from €13.6m in 2010. This business represents 64% of ISE's revenue.
Irish market business - from equity listings, membership fees and information products - rose by 13% to €6.9m from €6.1m. This business represents 32% of ISE revenue. Total trades for the year exceeded 2.4 million.
''After the turbulence of 2009 and 2010, there was some improved stability in the markets during 2011 and this has been reflected in the Irish Stock Exchange's revenues,'' commented ISE chief executive Deirdre Somers.
She said the exchange had seen a strong performance across its diverse range of revenue streams.
