Opinion Poll by Invymark for laSexta, 15–19 September 2025
Voting Intentions | Seats | Coalitions | Technical Information
Voting Intentions

Confidence Intervals
| Party | Last Result | Poll Result | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|
| Partido Popular (EPP) | 0.0% | 36.1% | 34.3–38.0% | 33.7–38.5% | 33.3–39.0% | 32.4–39.9% |
| Partido Socialista Obrero Español (S&D) | 0.0% | 28.3% | 26.6–30.1% | 26.1–30.6% | 25.7–31.0% | 24.9–31.9% |
| Vox (PfE) | 0.0% | 16.3% | 14.9–17.8% | 14.5–18.2% | 14.2–18.6% | 13.6–19.3% |
| Podemos (GUE/NGL) | 0.0% | 4.0% | 3.3–4.9% | 3.1–5.1% | 3.0–5.3% | 2.7–5.8% |
| Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) | 0.0% | 2.9% | 2.3–3.7% | 2.2–3.9% | 2.1–4.1% | 1.8–4.5% |
| Movimiento Sumar–Izquierda Unida (GUE/NGL) | 0.0% | 1.8% | 1.4–2.5% | 1.3–2.6% | 1.2–2.8% | 1.0–3.1% |
| Se Acabó La Fiesta (NI) | 0.0% | 1.5% | 1.2–2.1% | 1.1–2.3% | 1.0–2.5% | 0.8–2.8% |
Note: The poll result column reflects the actual value used in the calculations. Published results may vary slightly, and in addition be rounded to fewer digits.
Seats


Confidence Intervals
| Party | Last Result | Median | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|
| Partido Popular (EPP) | 0 | 25 | 24–26 | 23–27 | 23–27 | 22–28 |
| Partido Socialista Obrero Español (S&D) | 0 | 19 | 18–21 | 18–21 | 18–21 | 17–22 |
| Vox (PfE) | 0 | 11 | 10–12 | 10–12 | 10–13 | 9–13 |
| Podemos (GUE/NGL) | 0 | 2 | 2–3 | 2–3 | 2–3 | 1–4 |
| Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) | 0 | 2 | 1–2 | 1–2 | 1–2 | 1–3 |
| Movimiento Sumar–Izquierda Unida (GUE/NGL) | 0 | 1 | 0–1 | 0–1 | 0–1 | 0–2 |
| Se Acabó La Fiesta (NI) | 0 | 1 | 0–1 | 0–1 | 0–1 | 0–1 |
Partido Popular (EPP)
For a full overview of the results for this party, see the Partido Popular (EPP) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0% | 100% | |
| 17 | 0% | 100% | |
| 18 | 0% | 100% | |
| 19 | 0% | 100% | |
| 20 | 0% | 100% | |
| 21 | 0% | 100% | |
| 22 | 0.8% | 100% | |
| 23 | 7% | 99.2% | |
| 24 | 24% | 92% | |
| 25 | 36% | 68% | Median |
| 26 | 25% | 32% | |
| 27 | 7% | 7% | |
| 28 | 0.5% | 0.6% | |
| 29 | 0% | 0% |
Partido Socialista Obrero Español (S&D)
For a full overview of the results for this party, see the Partido Socialista Obrero Español (S&D) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0.1% | 100% | |
| 17 | 2% | 99.9% | |
| 18 | 16% | 98% | |
| 19 | 37% | 82% | Median |
| 20 | 32% | 46% | |
| 21 | 12% | 14% | |
| 22 | 2% | 2% | |
| 23 | 0.1% | 0.1% | |
| 24 | 0% | 0% |
Vox (PfE)
For a full overview of the results for this party, see the Vox (PfE) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 2% | 100% | |
| 10 | 24% | 98% | |
| 11 | 48% | 74% | Median |
| 12 | 23% | 26% | |
| 13 | 3% | 3% | |
| 14 | 0.1% | 0.1% | |
| 15 | 0% | 0% |
Podemos (GUE/NGL)
For a full overview of the results for this party, see the Podemos (GUE/NGL) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 1.0% | 100% | |
| 2 | 62% | 99.0% | Median |
| 3 | 36% | 37% | |
| 4 | 0.7% | 0.7% | |
| 5 | 0% | 0% |
Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA)
For a full overview of the results for this party, see the Movimiento Sumar–Catalunya en Comú–Més–Compromís–Más País–Chunta (Greens/EFA) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 41% | 100% | |
| 2 | 57% | 59% | Median |
| 3 | 1.3% | 1.3% | |
| 4 | 0% | 0% |
Movimiento Sumar–Izquierda Unida (GUE/NGL)
For a full overview of the results for this party, see the Movimiento Sumar–Izquierda Unida (GUE/NGL) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 11% | 100% | Last Result |
| 1 | 87% | 89% | Median |
| 2 | 2% | 2% | |
| 3 | 0% | 0% |
Se Acabó La Fiesta (NI)
For a full overview of the results for this party, see the Se Acabó La Fiesta (NI) page.

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 30% | 100% | Last Result |
| 1 | 69% | 70% | Median |
| 2 | 0.4% | 0.4% | |
| 3 | 0% | 0% |
Coalitions

Confidence Intervals
| Coalition | Last Result | Median | Majority? | 80% Confidence Interval | 90% Confidence Interval | 95% Confidence Interval | 99% Confidence Interval |
|---|---|---|---|---|---|---|---|
| Partido Popular (EPP) | 0 | 25 | 0% | 24–26 | 23–27 | 23–27 | 22–28 |
| Partido Socialista Obrero Español (S&D) | 0 | 19 | 0% | 18–21 | 18–21 | 18–21 | 17–22 |
| Vox (PfE) | 0 | 11 | 0% | 10–12 | 10–12 | 10–13 | 9–13 |
Partido Popular (EPP)

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0% | 100% | |
| 17 | 0% | 100% | |
| 18 | 0% | 100% | |
| 19 | 0% | 100% | |
| 20 | 0% | 100% | |
| 21 | 0% | 100% | |
| 22 | 0.8% | 100% | |
| 23 | 7% | 99.2% | |
| 24 | 24% | 92% | |
| 25 | 36% | 68% | Median |
| 26 | 25% | 32% | |
| 27 | 7% | 7% | |
| 28 | 0.5% | 0.6% | |
| 29 | 0% | 0% |
Partido Socialista Obrero Español (S&D)

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 0% | 100% | |
| 10 | 0% | 100% | |
| 11 | 0% | 100% | |
| 12 | 0% | 100% | |
| 13 | 0% | 100% | |
| 14 | 0% | 100% | |
| 15 | 0% | 100% | |
| 16 | 0.1% | 100% | |
| 17 | 2% | 99.9% | |
| 18 | 16% | 98% | |
| 19 | 37% | 82% | Median |
| 20 | 32% | 46% | |
| 21 | 12% | 14% | |
| 22 | 2% | 2% | |
| 23 | 0.1% | 0.1% | |
| 24 | 0% | 0% |
Vox (PfE)

| Number of Seats | Probability | Accumulated | Special Marks |
|---|---|---|---|
| 0 | 0% | 100% | Last Result |
| 1 | 0% | 100% | |
| 2 | 0% | 100% | |
| 3 | 0% | 100% | |
| 4 | 0% | 100% | |
| 5 | 0% | 100% | |
| 6 | 0% | 100% | |
| 7 | 0% | 100% | |
| 8 | 0% | 100% | |
| 9 | 2% | 100% | |
| 10 | 24% | 98% | |
| 11 | 48% | 74% | Median |
| 12 | 23% | 26% | |
| 13 | 3% | 3% | |
| 14 | 0.1% | 0.1% | |
| 15 | 0% | 0% |
Technical Information
Opinion Poll
- Polling firm: Invymark
- Commissioner(s): laSexta
- Fieldwork period: 15–19 September 2025
Calculations
- Sample size: 1100
- Simulations done: 2,097,152
- Error estimate: 1.62%