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Analysis

Cohesion

All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · political groups · per month · abstentions counted

How united do the groups vote — over time, and on the votes of each committee or topic?

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Period Term202420252026Last 6 months
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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.

Cohesion of the groups per month, Jul 2024 to Sept 2026: Agreement Index from 0 (evenly split) to 1 (all voted the same).

Jul 2024 → Sept 2026; each panel highlights one series, the others faint behind it.

Data as a table
Agreement Index per period (0 = evenly split, 1 = all voted the same), with the votes counted in it. — : fewer than 20 votes counted in the period (a vote counts for a bloc when at least 10 of its members and a third of its seats voted).
PeriodThe LeftGreensS&DRenewEPPECRPatriotsESN
Jul 20240.7124 votes0.7724 votes0.8524 votes0.9324 votes0.9024 votes0.7524 votes0.7124 votes0.8323 votes
Sept 20240.7296 votes0.9096 votes0.9196 votes0.9695 votes0.9296 votes0.8296 votes0.6696 votes0.7495 votes
Oct 20240.84179 votes0.92179 votes0.91179 votes0.91179 votes0.90179 votes0.76179 votes0.68179 votes0.82179 votes
Nov 20240.81125 votes0.89126 votes0.90126 votes0.85126 votes0.83126 votes0.74126 votes0.73126 votes0.87126 votes
Dec 20240.9291 votes0.9691 votes0.9591 votes0.9591 votes0.8491 votes0.8191 votes0.8191 votes0.8791 votes
Jan 20250.8350 votes0.9450 votes0.9549 votes0.9750 votes0.9146 votes0.8950 votes0.7450 votes0.6948 votes
Feb 20250.7973 votes0.9473 votes0.9273 votes0.9373 votes0.9272 votes0.6973 votes0.6673 votes0.8473 votes
Mar 20250.75266 votes0.89266 votes0.94266 votes0.91266 votes0.91266 votes0.81266 votes0.67266 votes0.80265 votes
Apr 20250.89348 votes0.92348 votes0.92348 votes0.90348 votes0.87347 votes0.82348 votes0.76348 votes0.82348 votes
May 20250.89393 votes0.95393 votes0.95393 votes0.94393 votes0.88393 votes0.83393 votes0.82393 votes0.91393 votes
Jun 20250.89221 votes0.97221 votes0.95221 votes0.94221 votes0.90221 votes0.79221 votes0.74221 votes0.86221 votes
Jul 20250.86226 votes0.95226 votes0.95226 votes0.96226 votes0.87226 votes0.79226 votes0.74226 votes0.85226 votes
Sept 20250.90205 votes0.92205 votes0.93205 votes0.90205 votes0.91205 votes0.86205 votes0.81205 votes0.78205 votes
Oct 20250.87384 votes0.94384 votes0.93384 votes0.88384 votes0.85384 votes0.78384 votes0.80384 votes0.88384 votes
Nov 20250.90570 votes0.96570 votes0.96570 votes0.92570 votes0.87570 votes0.88570 votes0.82570 votes0.86570 votes
Dec 20250.93155 votes0.96155 votes0.89155 votes0.87155 votes0.81155 votes0.79155 votes0.84155 votes0.83155 votes
Jan 20260.85236 votes0.90237 votes0.91237 votes0.92237 votes0.90237 votes0.86237 votes0.77237 votes0.80237 votes
Feb 20260.90237 votes0.96237 votes0.96237 votes0.87237 votes0.86237 votes0.77237 votes0.63237 votes0.83237 votes
Mar 20260.90364 votes0.92364 votes0.87364 votes0.92364 votes0.94364 votes0.85364 votes0.75364 votes0.85364 votes
Apr 20260.89591 votes0.94591 votes0.94591 votes0.91591 votes0.89591 votes0.80591 votes0.80591 votes0.90591 votes
May 20260.93201 votes0.96201 votes0.96201 votes0.92201 votes0.88201 votes0.78201 votes0.71201 votes0.81201 votes
Jun 20260.86245 votes0.94245 votes0.91245 votes0.91246 votes0.90246 votes0.78246 votes0.75245 votes0.81245 votes
Jul 20260.86285 votes0.95285 votes0.90285 votes0.93285 votes0.93285 votes0.76285 votes0.73285 votes0.86285 votes
Sept 20260.90360 votes0.96360 votes0.94360 votes0.91360 votes0.87360 votes0.84360 votes0.81360 votes0.91360 votes
Whole period0.870.940.930.910.890.810.760.85
Votes considered5,9255,9275,9265,9275,9225,9285,9275,922

Over the whole selection

Each group’s Agreement Index over every vote in the selection where enough of its members voted.

Cohesion: the Agreement Index (0–1) over the votes counted — votes where at least 10 members and a third of the seats voted; — : fewer than 20 such votes. Seats: members now. Order as the backend lists the blocs, not a ranking.
GroupCohesionVotes countedSeats
The Left 0.875 92544
Greens 0.945 92753
S&D 0.935 926135
Renew 0.915 92778
EPP 0.895 922184
ECR 0.815 92884
Patriots 0.765 92785
ESN 0.855 92227

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).
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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 · abstentions counted”. Analysis. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&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 month · abstentions counted}},
  year = {2026},
  howpublished = {\url{https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&scope=all&to=2026-09-25}},
  url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=month&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}
}