The latest grocery market share figures show that despite strong sales growth by Tesco, SuperValu has retained the position of Ireland's largest grocery retailer.
The data from Kantar Worldpanel in Ireland is for 12 weeks ending August 13th 2017.
Year-on-year sales growth of 0.4% was enough for SuperValu to hold onto the top spot in the face of a strong challenge from Tesco.
SuperValu has improved the number of items sold per trip, but at a lower price point.
It now holds a 22.2% share of the grocery market, down 0.3 percentage points on last year.
This is also only the second time since July 2014 that Tesco has posted a year-on-year increase in market share.
The overall grocery market has seen growth of 2.2%, despite deflation holding steady at 0.5% for the second month in a row.
In third place behind SuperValu and Tesco, Dunnes Stores has maintained its market share at 21.1%, with sales increasing by 2.0% in comparison with last year.
The number of households shopping with the retailer has fallen from 64% to 59% - a reduction of 68,000 in absolute terms.
But Kantar says this decline in footfall is cancelled out by a healthy improvement in how much shoppers are spending.
The average Dunnes basket now includes an additional item and is worth an extra €2, suggesting that it is performing well in the larger 'main' shop of the week and less so among smaller top-up trips.
Lidl continues to perform ahead of the market, with sales growth of 2.7% - while Aldi has tied with Tesco for the title of fastest growing retailer this period.
Its sales growth of 3.4% has improved its market share to 11.5%, matching the record level it first saw in March of this year.