Analysis
Cohesion
All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · political groups · per month · for and against only
How united do the groups vote — over time, and on the votes of each committee or topic?
Cohesion over time
Agreement Index per month, from 0 (evenly split) to 1 (all voted the same). A vote counts for a bloc when at least 10 of its members and a third of its seats voted; a gap is a period with fewer than 20 votes counted.
Jul 2024 → Sept 2026; each panel highlights one series, the others faint behind it.
Data as a table
| Period | The Left | Greens | S&D | Renew | EPP | ECR | Patriots | ESN |
|---|---|---|---|---|---|---|---|---|
| Jul 2024 | 0.8124 votes | 0.7524 votes | 0.8724 votes | 0.9524 votes | 0.9424 votes | 0.8024 votes | 0.8724 votes | 0.8623 votes |
| Sept 2024 | 0.7996 votes | 0.9096 votes | 0.9296 votes | 0.9695 votes | 0.9396 votes | 0.8496 votes | 0.7896 votes | 0.8395 votes |
| Oct 2024 | 0.88179 votes | 0.94179 votes | 0.90179 votes | 0.91179 votes | 0.90179 votes | 0.83179 votes | 0.77179 votes | 0.88179 votes |
| Nov 2024 | 0.85125 votes | 0.93126 votes | 0.92126 votes | 0.84126 votes | 0.83126 votes | 0.82126 votes | 0.83126 votes | 0.94124 votes |
| Dec 2024 | 0.9691 votes | 0.9691 votes | 0.9491 votes | 0.9591 votes | 0.8591 votes | 0.8591 votes | 0.8691 votes | 0.9091 votes |
| Jan 2025 | 0.9150 votes | 0.9750 votes | 0.9649 votes | 0.9850 votes | 0.9246 votes | 0.9350 votes | 0.8650 votes | 0.8248 votes |
| Feb 2025 | 0.8673 votes | 0.9673 votes | 0.9373 votes | 0.9273 votes | 0.9272 votes | 0.7773 votes | 0.8173 votes | 0.8973 votes |
| Mar 2025 | 0.82266 votes | 0.90266 votes | 0.94266 votes | 0.89266 votes | 0.91266 votes | 0.86266 votes | 0.78266 votes | 0.84265 votes |
| Apr 2025 | 0.93348 votes | 0.94348 votes | 0.92348 votes | 0.90348 votes | 0.87347 votes | 0.88348 votes | 0.85348 votes | 0.87348 votes |
| May 2025 | 0.93393 votes | 0.95393 votes | 0.96393 votes | 0.94393 votes | 0.88393 votes | 0.89393 votes | 0.89393 votes | 0.93393 votes |
| Jun 2025 | 0.94221 votes | 0.97221 votes | 0.95221 votes | 0.94221 votes | 0.90221 votes | 0.86221 votes | 0.81221 votes | 0.89221 votes |
| Jul 2025 | 0.91226 votes | 0.96226 votes | 0.94226 votes | 0.96226 votes | 0.88226 votes | 0.84226 votes | 0.81226 votes | 0.92226 votes |
| Sept 2025 | 0.94205 votes | 0.94203 votes | 0.93205 votes | 0.90205 votes | 0.91205 votes | 0.91205 votes | 0.87205 votes | 0.84205 votes |
| Oct 2025 | 0.91384 votes | 0.96384 votes | 0.93384 votes | 0.87384 votes | 0.84384 votes | 0.84384 votes | 0.88384 votes | 0.90382 votes |
| Nov 2025 | 0.92570 votes | 0.96568 votes | 0.96570 votes | 0.92570 votes | 0.86570 votes | 0.91570 votes | 0.88570 votes | 0.92570 votes |
| Dec 2025 | 0.94155 votes | 0.96155 votes | 0.88155 votes | 0.85155 votes | 0.80155 votes | 0.80155 votes | 0.90155 votes | 0.86155 votes |
| Jan 2026 | 0.88236 votes | 0.93237 votes | 0.92237 votes | 0.91237 votes | 0.90237 votes | 0.89237 votes | 0.89237 votes | 0.85237 votes |
| Feb 2026 | 0.93237 votes | 0.97237 votes | 0.97237 votes | 0.86237 votes | 0.86237 votes | 0.80237 votes | 0.76237 votes | 0.86236 votes |
| Mar 2026 | 0.93364 votes | 0.95362 votes | 0.86364 votes | 0.91364 votes | 0.93364 votes | 0.88364 votes | 0.81364 votes | 0.91364 votes |
| Apr 2026 | 0.92591 votes | 0.96590 votes | 0.95591 votes | 0.91591 votes | 0.89591 votes | 0.88591 votes | 0.87591 votes | 0.92591 votes |
| May 2026 | 0.95201 votes | 0.97201 votes | 0.96201 votes | 0.91201 votes | 0.88201 votes | 0.86201 votes | 0.80201 votes | 0.86200 votes |
| Jun 2026 | 0.91245 votes | 0.96245 votes | 0.90245 votes | 0.90246 votes | 0.90246 votes | 0.82246 votes | 0.83245 votes | 0.86244 votes |
| Jul 2026 | 0.90285 votes | 0.96284 votes | 0.90285 votes | 0.92285 votes | 0.94285 votes | 0.81285 votes | 0.82285 votes | 0.90285 votes |
| Sept 2026 | 0.92360 votes | 0.96360 votes | 0.95360 votes | 0.91360 votes | 0.87360 votes | 0.87360 votes | 0.90360 votes | 0.94360 votes |
| Whole period | 0.91 | 0.95 | 0.93 | 0.91 | 0.88 | 0.86 | 0.85 | 0.89 |
| Votes considered | 5,925 | 5,919 | 5,926 | 5,927 | 5,922 | 5,928 | 5,927 | 5,915 |
Over the whole selection
Each group’s Agreement Index over every vote in the selection where enough of its members voted.
| Group | Cohesion | Votes counted | Seats |
|---|---|---|---|
| The Left | 0.91 | 5 925 | 44 |
| Greens | 0.95 | 5 919 | 53 |
| S&D | 0.93 | 5 926 | 135 |
| Renew | 0.91 | 5 927 | 78 |
| EPP | 0.88 | 5 922 | 184 |
| ECR | 0.86 | 5 928 | 84 |
| Patriots | 0.85 | 5 927 | 85 |
| ESN | 0.89 | 5 915 | 27 |
The tables by committee and by topic are computed over a whole period: choose Whole period.
About these figures
What was counted, what was left out, and how.
- 5 928 votes considered (all roll-call votes matching the filters; scope).
- 174 of 794 decisions in the period had no final vote recorded by name (a show of hands or a count without names) and cannot be measured.
- 35 times a bloc had too few members voting on a vote (fewer than 10, or under a third of its seats) and was left out of that vote (turnout rule).
- Cohesion is the Agreement Index: 1 when every voting member took the same position, 0 when the bloc split evenly three ways (method). A bloc counts on a vote only when at least 10 of its members and a third of its seats voted; the non-attached have no group cohesion.
- Months are offered for all roll calls only, and a month needs at least 20 votes.
- Each member is counted in the group they belonged to on the day of the vote (group at the date).
- Roll calls are not a random sample: final votes on laws are recorded by name, most other roll calls because a group asked for it. A group’s line is inferred from its members’ votes; the Parliament publishes no whip.
- Methods: Cohesion (Agreement Index) v1, Final votes and all roll calls v1, Group at the date of the vote v1.
- Data as of 25 Sept 2026, 03:36 UTC (data stamp f37e5638cded, code 6d4005c55bde; what the stamp is).
Sources & citation
Where the facts on this page come from, and how to cite it.
- Data source
- Licensed CC BY 4.0.
- Data version
- data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1 · methods
- Retrieved
- 25 September 2026
Cite as
EU Parl Watch Research (2026). “Cohesion — All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · political groups · per month · for and against only”. Analysis. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&scope=all&variant=forAgainst&to=2026-09-25 (retrieved 25 September 2026). Data: European Parliament Open Data, https://data.europarl.europa.eu/ (CC BY 4.0); data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1.
BibTeX
@misc{epw-analysis-2026-09-25,
author = {{EU Parl Watch Research}},
title = {{Cohesion — All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · political groups · per month · for and against only}},
year = {2026},
howpublished = {\url{https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&scope=all&variant=forAgainst&to=2026-09-25}},
url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&scope=all&variant=forAgainst&to=2026-09-25},
urldate = {2026-09-25},
publisher = {EU Parl Watch Research},
note = {Analysis. Data: European Parliament Open Data (CC BY 4.0); data version f37e5638cded (25 Sept 2026) · methods: group-at-date v1, participation v1, abstention v1, loyalty v1, against-clear v1, cohesion v1, agreement v1, group-agreement v1, winning-side v1, similar-votes v1, scope v1, data-version v1}
}