Spanish short selling: week 39, 2026
From 21 Sep 2026 to 25 Sep 2026, 33 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) |
|---|---|---|---|
| SACYR, S.A. | 0.92% | 1.52% | +0.60 |
| ACCIONA, S.A. | 0.62% | 1.21% | +0.59 |
| TECNICAS REUNIDAS, S.A. | 3.61% | 3.70% | +0.09 |
| SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A. | 5.57% | 5.66% | +0.09 |
| HBX GROUP INTERNATIONAL PLC | 0.74% | 0.80% | +0.06 |
Biggest falls
| Company | Start | End | Change (pp) |
|---|---|---|---|
| INDRA SISTEMAS, S.A. | 2.35% | 2.08% | −0.27 |
| EDREAMS ODIGEO, S.A. | 6.03% | 5.84% | −0.19 |
| OBRASCON HUARTE LAIN, S.A. | 0.66% | 0.56% | −0.10 |
| ORYZON GENOMICS, S.A. | 0.63% | 0.59% | −0.04 |
New disclosures
No companies entered the dataset this week.
Left the dataset
Last published by the CNMV this week, and in no publication since: the figure shown is the one each carried in that final publication. Leaving usually means the position fell below the disclosure threshold, not that shorting stopped entirely.
- NYESA VALORES CORPORACION, S.A., last figure 0.59% on 21 Sep 2026
- AMADEUS IT GROUP, S.A., last figure 0.50% on 24 Sep 2026
- FERROVIAL N.V., last figure 0.50% on 21 Sep 2026
Most shorted at week end
- EDREAMS ODIGEO, S.A., 5.84%
- SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A., 5.66%
- ENAGAS, S.A., 4.81%
- TECNICAS REUNIDAS, S.A., 3.70%
- AMPER, S.A., 2.60%
Full table: most shorted Spanish stocks.