Boosted by mostly stronger banking shares, the Dublin market had gained over 5.5% in trading today, outperforming other European bourses.
After gains of over 2% yesterday, Dublin was up another 156 points to stand at 2937 this lunchtime.
Irish Life and Permanent and AIB were leading the way, both gaining 7%.
Elsewhere, the Paris market was up 2% while London and Frankfurt gained almost 1%.
Most Asian and European stocks rose overnight and this morning.
Investors took their cue from Wall Street where stocks soared overnight as Federal Reserve chief Ben Bernanke threw his support behind another government spending package to kick-start the world's largest economy.
In Asia, Tokyo jumped 3.34% as Sydney gained 3.9%. But Seoul closed down 0.95% and Hong Kong stocks closed 2.02% lower.
In the foreign exchange markets, the euro fell to a 19-month low point of $1.3237 in early morning trading, on concerns about slowing European economic growth.
Australia's corporate watchdog has extended a ban on covered short selling of shares until next month, saying the volatile market needed more time to settle.