S
Pollster
Sigma Dos
Quality grade B
Spanish polling organisation. Original published reports are linked in each poll. The B quality grade is the plugin-required default, not an independent Votendi assessment. No empirical bias adjustment has been assigned. Overlapping fieldwork and changes in reported labels require review before aggregation.
Published data
Recent polls
| Pollster | Dates | Sample | Method | |
|---|---|---|---|---|
| Sigma DosSigma Dos — Congress of Deputies — 2 November 2026 | 29 Oct–30 Oct 2026 | 2,505 | Mixed | → |
| Sigma DosSigma Dos — Congress of Deputies | 8 Oct–22 Oct 2026 | 3,122 | Mixed | → |
| Sigma DosSigma Dos — Congress of Deputies | 1 Oct–14 Oct 2026 | 3,007 | Mixed | → |
| Sigma DosSigma Dos — Congress of Deputies | 22 Sep–1 Oct 2026 | 2,116 | Mixed | → |