Spanish short selling: week 21, 2026
From 18 May 2026 to 22 May 2026, 31 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) |
|---|---|---|---|
| AMPER, S.A. | 2.16% | 2.67% | +0.51 |
| BANCO DE SABADELL, S.A. | 0.52% | 0.60% | +0.08 |
| TECNICAS REUNIDAS, S.A. | 1.43% | 1.50% | +0.07 |
| COLONIAL SFL, SOCIMI, S.A. | 0.50% | 0.52% | +0.02 |
| SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A. | 5.62% | 5.63% | +0.01 |
Biggest falls
| Company | Start | End | Change (pp) |
|---|---|---|---|
| EDREAMS ODIGEO, S.A. | 12.03% | 10.15% | −1.88 |
| ENAGAS, S.A. | 5.66% | 4.57% | −1.09 |
| ORYZON GENOMICS, S.A. | 2.30% | 1.41% | −0.89 |
| TUBACEX, S.A. | 2.32% | 1.43% | −0.89 |
| HBX GROUP INTERNATIONAL PLC | 1.35% | 0.74% | −0.61 |
| GRIFOLS, S.A. | 4.06% | 3.56% | −0.50 |
| ENCE ENERGIA Y CELULOSA, S.A. | 2.55% | 2.16% | −0.39 |
| INDRA SISTEMAS, S.A. | 4.70% | 4.57% | −0.13 |
| ACCIONA, S.A. | 2.07% | 1.97% | −0.10 |
| AMADEUS IT GROUP, S.A. | 1.20% | 1.17% | −0.03 |
New disclosures
No companies entered the dataset this week.
Most shorted at week end
- EDREAMS ODIGEO, S.A., 10.15%
- SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A., 5.63%
- INDRA SISTEMAS, S.A., 4.57%
- ENAGAS, S.A., 4.57%
- GRIFOLS, S.A., 3.56%
Full table: most shorted Spanish stocks.