Stockbroker Davy has confirmed that it is planning to cut up to 75 jobs to reduce costs.
The company said the turbulence in international and domestic financial markets over the past 18 months had reduced trading volumes.
Davy said it needed to lower costs in order to protect its profits.
The company said details of the proposed cost-cutting plan would be determined in consultation with staff, but the programme was likely to include redundancies and affect 10% to 15% of the 500 staff.
The stockbroker also said there would be some salary cuts as well as a thorough review of overheads.