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Analysis

Cohesion

All roll calls · whole term, 16 Jul 2024 – 25 Sept 2026 · political groups · per quarter · for and against only

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 quarter, 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 quarter, Q3 2024 to Q3 2026: Agreement Index from 0 (evenly split) to 1 (all voted the same).

Q3 2024 → Q3 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
Q3 20240.79120 votes0.87120 votes0.91120 votes0.96119 votes0.94120 votes0.83120 votes0.80120 votes0.83118 votes
Q4 20240.89395 votes0.94396 votes0.92396 votes0.89396 votes0.87396 votes0.83396 votes0.81396 votes0.90394 votes
Q1 20250.84389 votes0.92389 votes0.94388 votes0.91389 votes0.91384 votes0.85389 votes0.79389 votes0.85386 votes
Q2 20250.93962 votes0.95962 votes0.94962 votes0.92962 votes0.88961 votes0.88962 votes0.86962 votes0.90962 votes
Q3 20250.92431 votes0.95429 votes0.93431 votes0.93431 votes0.89431 votes0.87431 votes0.84431 votes0.88431 votes
Q4 20250.921,109 votes0.961,107 votes0.941,109 votes0.891,109 votes0.841,109 votes0.871,109 votes0.881,109 votes0.911,107 votes
Q1 20260.92837 votes0.95836 votes0.90838 votes0.90838 votes0.90838 votes0.86838 votes0.82838 votes0.88837 votes
Q2 20260.921,037 votes0.961,036 votes0.941,037 votes0.911,038 votes0.891,038 votes0.861,038 votes0.851,037 votes0.891,035 votes
Q3 20260.91645 votes0.96644 votes0.93645 votes0.92645 votes0.90645 votes0.85645 votes0.86645 votes0.92645 votes
Whole period0.910.950.930.910.880.860.850.89
Votes considered5,9255,9195,9265,9275,9225,9285,9275,915

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 0.915 92544
Greens 0.955 91953
S&D 0.935 926135
Renew 0.915 92778
EPP 0.885 922184
ECR 0.865 92884
Patriots 0.855 92785
ESN 0.895 91527

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).
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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 quarter · for and against only”. Analysis. EU Parl Watch Research. https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=quarter&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 quarter · for and against only}},
  year = {2026},
  howpublished = {\url{https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=quarter&scope=all&variant=forAgainst&to=2026-09-25}},
  url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=quarter&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}
}