Accumulated reserves at the state's investor compensation fund rose nearly 6% over the last year.
The annual report of the Investor Compensation Company (ICCL) shows that at the end of July, the body held €65.2m, up from €61.6m a year earlier.
However, the €3.5m surplus accumulated over the past year was down €803,000 on the previous year.
The ICCL is a statutory body, which was set up to compensate the eligible clients of investment firms which have failed in circumstances where the remains of those companies cannot return clients' money to them.
It funds itself by collecting levies each year from around 3,100 participating investment companies, building up its reserves in the process.
Insurance policies and revolving credit facilities are also used to supplement the available funding by €140m if needed.
Over its last financial year, levies collected amounted to €5.8m, with €4.9m coming from larger investment firms and the balance coming from smaller entities, like accountants, retail intermediaries and brokers.
Since the end of the last financial year in July, the ICC said its reserves have grown further to €69.8m.
No new compensation cases arose in the past year, it said.
Among the cases still being dealt with is the collapse of investment firm Custom House Capital which the High Court appointed a liquidator to in 2011.
574 claims on foot of its liquidation have been paid out since by the ICC, with compensation totalling €7.4m.
However, no further claims were certified in the year to the end of July and 1,400 claims remain to be validated by the liquidator.
Total estimated investor losses amount to €61m, with €19.7m of that compensatable.
The ICC said these have already been fully provided for in its accounts.
Also ongoing is the liquidation of Money Markets International Stockbrokers Ltd, which dates back to 1999.
