Analysis
Cohesion
All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · political groups · per part-session · abstentions counted
How united do the groups vote — over time, and on the votes of each committee or topic?
Cohesion over time
Agreement Index per part-session, 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.
17 Jul 2024 – 18 Jul 2024 → 14 Sept 2026 – 17 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 |
|---|---|---|---|---|---|---|---|---|
| 17 Jul 2024 – 18 Jul 2024 | 0.7124 votes | 0.7724 votes | 0.8524 votes | 0.9324 votes | 0.9024 votes | 0.7524 votes | 0.7124 votes | 0.8323 votes |
| 16 Sept 2024 – 19 Sept 2024 | 0.7296 votes | 0.9096 votes | 0.9196 votes | 0.9695 votes | 0.9296 votes | 0.8296 votes | 0.6696 votes | 0.7495 votes |
| 7 Oct 2024 – 10 Oct 2024 | 0.6625 votes | 0.9625 votes | 0.9625 votes | 0.9725 votes | 0.9425 votes | 0.7825 votes | 0.5125 votes | 0.8025 votes |
| 21 Oct 2024 – 24 Oct 2024 | 0.87154 votes | 0.91154 votes | 0.90154 votes | 0.90154 votes | 0.90154 votes | 0.76154 votes | 0.71154 votes | 0.82154 votes |
| 13 Nov 2024 – 14 Nov 2024 | 0.8738 votes | 0.9738 votes | 0.9638 votes | 0.8938 votes | 0.8638 votes | 0.8338 votes | 0.8138 votes | 0.9138 votes |
| 25 Nov 2024 – 28 Nov 2024 | 0.7887 votes | 0.8588 votes | 0.8788 votes | 0.8388 votes | 0.8288 votes | 0.7088 votes | 0.7088 votes | 0.8588 votes |
| 17 Dec 2024 – 19 Dec 2024 | 0.9291 votes | 0.9691 votes | 0.9591 votes | 0.9591 votes | 0.8491 votes | 0.8191 votes | 0.8191 votes | 0.8791 votes |
| 20 Jan 2025 – 23 Jan 2025 | 0.8350 votes | 0.9450 votes | 0.9549 votes | 0.9750 votes | 0.9146 votes | 0.8950 votes | 0.7450 votes | 0.6948 votes |
| 10 Feb 2025 – 13 Feb 2025 | 0.7973 votes | 0.9473 votes | 0.9273 votes | 0.9373 votes | 0.9272 votes | 0.6973 votes | 0.6673 votes | 0.8473 votes |
| 10 Mar 2025 – 13 Mar 2025 | 0.75263 votes | 0.88263 votes | 0.94263 votes | 0.91263 votes | 0.91263 votes | 0.81263 votes | 0.67263 votes | 0.80262 votes |
| 31 Mar 2025 – 3 Apr 2025 | 0.89351 votes | 0.92351 votes | 0.92351 votes | 0.90351 votes | 0.87350 votes | 0.82351 votes | 0.76351 votes | 0.82351 votes |
| 5 May 2025 – 8 May 2025 | 0.90338 votes | 0.95338 votes | 0.95338 votes | 0.94338 votes | 0.88338 votes | 0.84338 votes | 0.82338 votes | 0.92338 votes |
| 21 May 2025 – 22 May 2025 | 0.8755 votes | 0.9555 votes | 0.9755 votes | 0.9455 votes | 0.8955 votes | 0.8355 votes | 0.8355 votes | 0.8655 votes |
| 16 Jun 2025 – 19 Jun 2025 | 0.89221 votes | 0.97221 votes | 0.95221 votes | 0.94221 votes | 0.90221 votes | 0.79221 votes | 0.74221 votes | 0.86221 votes |
| 7 Jul 2025 – 10 Jul 2025 | 0.86226 votes | 0.95226 votes | 0.95226 votes | 0.96226 votes | 0.87226 votes | 0.79226 votes | 0.74226 votes | 0.85226 votes |
| 8 Sept 2025 – 11 Sept 2025 | 0.90205 votes | 0.92205 votes | 0.93205 votes | 0.90205 votes | 0.91205 votes | 0.86205 votes | 0.81205 votes | 0.78205 votes |
| 6 Oct 2025 – 9 Oct 2025 | 0.88127 votes | 0.95127 votes | 0.92127 votes | 0.82127 votes | 0.82127 votes | 0.81127 votes | 0.81127 votes | 0.88127 votes |
| 20 Oct 2025 – 23 Oct 2025 | 0.87257 votes | 0.93257 votes | 0.94257 votes | 0.92257 votes | 0.87257 votes | 0.77257 votes | 0.80257 votes | 0.88257 votes |
| 13 Nov 2025 | 0.97267 votes | 0.98267 votes | 0.96267 votes | 0.93267 votes | 0.86267 votes | 0.95267 votes | 0.88267 votes | 0.92267 votes |
| 24 Nov 2025 – 27 Nov 2025 | 0.83303 votes | 0.95303 votes | 0.96303 votes | 0.91303 votes | 0.88303 votes | 0.82303 votes | 0.76303 votes | 0.82303 votes |
| 15 Dec 2025 – 18 Dec 2025 | 0.93155 votes | 0.96155 votes | 0.89155 votes | 0.87155 votes | 0.81155 votes | 0.79155 votes | 0.84155 votes | 0.83155 votes |
| 20 Jan 2026 – 22 Jan 2026 | 0.85236 votes | 0.90237 votes | 0.91237 votes | 0.92237 votes | 0.90237 votes | 0.86237 votes | 0.77237 votes | 0.80237 votes |
| 9 Feb 2026 – 12 Feb 2026 | 0.95194 votes | 0.97194 votes | 0.97194 votes | 0.86194 votes | 0.84194 votes | 0.76194 votes | 0.66194 votes | 0.86194 votes |
| 24 Feb 2026 | 0.7143 votes | 0.9143 votes | 0.9543 votes | 0.9143 votes | 0.9543 votes | 0.7943 votes | 0.5243 votes | 0.7043 votes |
| 9 Mar 2026 – 12 Mar 2026 | 0.90292 votes | 0.95292 votes | 0.87292 votes | 0.93292 votes | 0.93292 votes | 0.85292 votes | 0.77292 votes | 0.86292 votes |
| 25 Mar 2026 – 26 Mar 2026 | 0.9072 votes | 0.8272 votes | 0.8772 votes | 0.8872 votes | 0.9772 votes | 0.8572 votes | 0.6872 votes | 0.8172 votes |
| 27 Apr 2026 – 30 Apr 2026 | 0.89591 votes | 0.94591 votes | 0.94591 votes | 0.91591 votes | 0.89591 votes | 0.80591 votes | 0.80591 votes | 0.90591 votes |
| 18 May 2026 – 21 May 2026 | 0.93201 votes | 0.96201 votes | 0.96201 votes | 0.92201 votes | 0.88201 votes | 0.78201 votes | 0.71201 votes | 0.81201 votes |
| 15 Jun 2026 – 18 Jun 2026 | 0.86245 votes | 0.94245 votes | 0.91245 votes | 0.91246 votes | 0.90246 votes | 0.78246 votes | 0.75245 votes | 0.81245 votes |
| 6 Jul 2026 – 9 Jul 2026 | 0.86285 votes | 0.95285 votes | 0.90285 votes | 0.93285 votes | 0.93285 votes | 0.76285 votes | 0.73285 votes | 0.86285 votes |
| 14 Sept 2026 – 17 Sept 2026 | 0.90360 votes | 0.96360 votes | 0.94360 votes | 0.91360 votes | 0.87360 votes | 0.84360 votes | 0.81360 votes | 0.91360 votes |
| Whole period | 0.87 | 0.94 | 0.93 | 0.91 | 0.89 | 0.81 | 0.76 | 0.85 |
| Votes considered | 5,925 | 5,927 | 5,926 | 5,927 | 5,922 | 5,928 | 5,927 | 5,922 |
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 | 0.87 | 5 925 | 44 |
| Greens | 0.94 | 5 927 | 53 |
| S&D | 0.93 | 5 926 | 135 |
| Renew | 0.91 | 5 927 | 78 |
| EPP | 0.89 | 5 922 | 184 |
| ECR | 0.81 | 5 928 | 84 |
| Patriots | 0.76 | 5 927 | 85 |
| ESN | 0.85 | 5 922 | 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.
- 20 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.
- Permalink
- https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&scope=all&to=2026-09-25
- 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 part-session · abstentions counted”. Analysis. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&scope=all&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 part-session · abstentions counted}},
year = {2026},
howpublished = {\url{https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&scope=all&to=2026-09-25}},
url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&scope=all&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}
}