Spanish short selling: week 34, 2026
From 17 Aug 2026 to 21 Aug 2026, 28 Spain companies had disclosed short positions across 5 publication days. Changes are percentage points (pp) of issued share capital, between each company's last figure before the week and its last figure of the week, from official CNMV data.
Biggest rises
| Company | Start | End | Change (pp) |
|---|---|---|---|
| REDEIA CORPORACION, S.A. | 0.72% | 1.23% | +0.51 |
| FLUIDRA, S.A. | 0.60% | 1.10% | +0.50 |
| CELLNEX TELECOM, S.A. | 0.90% | 1.40% | +0.50 |
| OBRASCON HUARTE LAIN, S.A. | 0.53% | 0.73% | +0.20 |
| TECNICAS REUNIDAS, S.A. | 2.63% | 2.74% | +0.11 |
| VISCOFAN, S.A. | 2.38% | 2.44% | +0.06 |
| EDREAMS ODIGEO, S.A. | 5.30% | 5.32% | +0.02 |
| GRIFOLS, S.A. | 1.79% | 1.81% | +0.02 |
Biggest falls
| Company | Start | End | Change (pp) |
|---|---|---|---|
| SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A. | 5.06% | 4.82% | −0.24 |
| INDRA SISTEMAS, S.A. | 2.78% | 2.68% | −0.10 |
| ENAGAS, S.A. | 5.25% | 5.17% | −0.08 |
New disclosures
No companies entered the dataset this week.
Most shorted at week end
- EDREAMS ODIGEO, S.A., 5.32%
- ENAGAS, S.A., 5.17%
- SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A., 4.82%
- TECNICAS REUNIDAS, S.A., 2.74%
- INDRA SISTEMAS, S.A., 2.68%
Full table: most shorted Spanish stocks.