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Cohesion

Final votes · 25 Mar 2026 – 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?

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Period Term202420252026Last 6 months
Custom dates
Votes Final votes185All roll calls1 755
Blocs GroupsDelegations
Periods Part-sessionsQuartersMonthsWhole period
Positions For, against, abstainedFor and against only ⓘ

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.

Cohesion of the groups per part-session, 25 Mar 2026 – 26 Mar 2026 to 14 Sept 2026 – 17 Sept 2026: Agreement Index from 0 (evenly split) to 1 (all voted the same).

25 Mar 2026 – 26 Mar 2026 → 14 Sept 2026 – 17 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
25 Mar 2026 – 26 Mar 2026—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes—13 votes
27 Apr 2026 – 30 Apr 20260.7842 votes0.9342 votes0.9742 votes0.9242 votes0.9242 votes0.7542 votes0.7442 votes0.8142 votes
18 May 2026 – 21 May 20260.7325 votes0.9225 votes0.9625 votes0.9625 votes0.9625 votes0.8125 votes0.6825 votes0.8025 votes
15 Jun 2026 – 18 Jun 20260.7432 votes0.9232 votes0.9432 votes0.8833 votes0.9333 votes0.7633 votes0.7332 votes0.8532 votes
6 Jul 2026 – 9 Jul 20260.7334 votes0.9334 votes0.9134 votes0.8734 votes0.8934 votes0.6834 votes0.6834 votes0.8934 votes
14 Sept 2026 – 17 Sept 20260.7638 votes0.8938 votes0.9538 votes0.8638 votes0.9038 votes0.8138 votes0.6638 votes0.8538 votes
Whole period0.760.910.940.890.920.760.700.84
Votes considered184184184185185185184184

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 0.7618444
Greens 0.9118453
S&D 0.94184135
Renew 0.8918578
EPP 0.92185184
ECR 0.7618584
Patriots 0.7018485
ESN 0.8418427

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.

  • 185 votes considered (final votes matching the filters; scope).
  • 62 of 247 decisions in the period had no final vote recorded by name (a show of hands or a count without names) and cannot be measured.
  • 5 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.

Permalink
https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&from=2026-03-25&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 — Final votes · 25 Mar 2026 – 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&from=2026-03-25&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 — Final votes · 25 Mar 2026 – 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&from=2026-03-25&to=2026-09-25}},
  url = {https://news.eu-parl.st-solutions.dev/analysis/cohesion?bucket=session&from=2026-03-25&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}
}