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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?

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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 20240.8124 votes0.7524 votes0.8724 votes0.9524 votes0.9424 votes0.8024 votes0.8724 votes0.8623 votes
Sept 20240.7996 votes0.9096 votes0.9296 votes0.9695 votes0.9396 votes0.8496 votes0.7896 votes0.8395 votes
Oct 20240.88179 votes0.94179 votes0.90179 votes0.91179 votes0.90179 votes0.83179 votes0.77179 votes0.88179 votes
Nov 20240.85125 votes0.93126 votes0.92126 votes0.84126 votes0.83126 votes0.82126 votes0.83126 votes0.94124 votes
Dec 20240.9691 votes0.9691 votes0.9491 votes0.9591 votes0.8591 votes0.8591 votes0.8691 votes0.9091 votes
Jan 20250.9150 votes0.9750 votes0.9649 votes0.9850 votes0.9246 votes0.9350 votes0.8650 votes0.8248 votes
Feb 20250.8673 votes0.9673 votes0.9373 votes0.9273 votes0.9272 votes0.7773 votes0.8173 votes0.8973 votes
Mar 20250.82266 votes0.90266 votes0.94266 votes0.89266 votes0.91266 votes0.86266 votes0.78266 votes0.84265 votes
Apr 20250.93348 votes0.94348 votes0.92348 votes0.90348 votes0.87347 votes0.88348 votes0.85348 votes0.87348 votes
May 20250.93393 votes0.95393 votes0.96393 votes0.94393 votes0.88393 votes0.89393 votes0.89393 votes0.93393 votes
Jun 20250.94221 votes0.97221 votes0.95221 votes0.94221 votes0.90221 votes0.86221 votes0.81221 votes0.89221 votes
Jul 20250.91226 votes0.96226 votes0.94226 votes0.96226 votes0.88226 votes0.84226 votes0.81226 votes0.92226 votes
Sept 20250.94205 votes0.94203 votes0.93205 votes0.90205 votes0.91205 votes0.91205 votes0.87205 votes0.84205 votes
Oct 20250.91384 votes0.96384 votes0.93384 votes0.87384 votes0.84384 votes0.84384 votes0.88384 votes0.90382 votes
Nov 20250.92570 votes0.96568 votes0.96570 votes0.92570 votes0.86570 votes0.91570 votes0.88570 votes0.92570 votes
Dec 20250.94155 votes0.96155 votes0.88155 votes0.85155 votes0.80155 votes0.80155 votes0.90155 votes0.86155 votes
Jan 20260.88236 votes0.93237 votes0.92237 votes0.91237 votes0.90237 votes0.89237 votes0.89237 votes0.85237 votes
Feb 20260.93237 votes0.97237 votes0.97237 votes0.86237 votes0.86237 votes0.80237 votes0.76237 votes0.86236 votes
Mar 20260.93364 votes0.95362 votes0.86364 votes0.91364 votes0.93364 votes0.88364 votes0.81364 votes0.91364 votes
Apr 20260.92591 votes0.96590 votes0.95591 votes0.91591 votes0.89591 votes0.88591 votes0.87591 votes0.92591 votes
May 20260.95201 votes0.97201 votes0.96201 votes0.91201 votes0.88201 votes0.86201 votes0.80201 votes0.86200 votes
Jun 20260.91245 votes0.96245 votes0.90245 votes0.90246 votes0.90246 votes0.82246 votes0.83245 votes0.86244 votes
Jul 20260.90285 votes0.96284 votes0.90285 votes0.92285 votes0.94285 votes0.81285 votes0.82285 votes0.90285 votes
Sept 20260.92360 votes0.96360 votes0.95360 votes0.91360 votes0.87360 votes0.87360 votes0.90360 votes0.94360 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 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}
}