Discount retailers Aldi and Lidl now hold a 13.1% share of the Irish market, according to the latest statistics from Kantar Worldpanel Ireland.
The figure, which covers the 12 weeks to 14 April, represents a record share for the discount sector with both chains posting significant sales growth in recent months.
Aldi, which now has a 6.4% market share, saw sales grow by 28.5% in the period examined. Lidl, which has a 6.6% share of the market, grew sales by 7.3%.
SuperValu also saw its sales grow, gaining 1.3% year on year. It has a market share of 19.8% - unchanged from the same period of 2012.
Superquinn’s sales grew by 0.9%, though its market share has fallen 0.1% to 5.6% when compared to last year.
Both SuperValu and Superquinn are part of the Musgraves Group.
Sales at Tesco fell by 0.9%, according to the figures, while its market share dropped 0.5% year-on-year. The British chain is still the biggest grocery retailer in the country, however, with 27.7% of the market.
Dunnes Stores is the second biggest, holding 22.5% of the market in the period examined. Its sales were up 0.4% year-on-year.