Sinn Féin remains the most popular party among voters, the latest Business Post RED C opinion poll suggests.
The party is up two points to 31% support.
Support for Fine Gael is down one percentage point to 21%, with Fianna Fáil unchanged on 16%.
The Green Party is also static on 4%, as are the Social Democrats on 5% and Solidarity-PBP on 3%.
Independents drop one point to 12%, while Labour is also down one to 4%.
Aontú is up one point to 3% compared to last month's poll.
The survey of 1,011 voters was taken over six days up to last Tuesday.
The margin of error is plus or minus 3%.
Separately, the latest Sunday Times Behaviour & Attitudes opinion poll also suggests Sinn Féin is the most popular party.
The poll suggests its support stands at 33%.
This is down one point on the last comparable poll two months ago.
In this poll, Fianna Fáil is on 21%, down three percentage points, while Fine Gael is up one to 20%.
Support for the Green Party rose by two points to stand on 6%.
Labour is unchanged on 4% with the Social Democrats' support climbing one point to 3%.
Solidarity-PBP is on 2% and Aontú is at 1% support in this poll conducted over 13 days up last Tuesday.
Independents and Others are down one point to 9%.
This poll has a margin of error of plus or minus 3.3%.
