Spanish short selling: week 41, 2026
From 5 Oct 2026 to 9 Oct 2026, 32 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) |
|---|---|---|---|
| SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A. | 5.31% | 6.39% | +1.08 |
| TECNICAS REUNIDAS, S.A. | 3.11% | 3.76% | +0.65 |
| ENAGAS, S.A. | 4.91% | 5.12% | +0.21 |
| AMPER, S.A. | 0.60% | 0.71% | +0.11 |
| HBX GROUP INTERNATIONAL PLC | 0.80% | 0.90% | +0.10 |
| ORYZON GENOMICS, S.A. | 0.59% | 0.60% | +0.01 |
Biggest falls
| Company | Start | End | Change (pp) |
|---|---|---|---|
| EDREAMS ODIGEO, S.A. | 5.08% | 4.42% | −0.66 |
| SACYR, S.A. | 2.24% | 1.81% | −0.43 |
| BANKINTER, S.A. | 0.56% | 0.50% | −0.06 |
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.
- AENA, S.M.E., S.A., last figure 0.51% on 8 Oct 2026
- BANKINTER, S.A., last figure 0.50% on 8 Oct 2026
Most shorted at week end
- SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A., 6.39%
- ENAGAS, S.A., 5.12%
- EDREAMS ODIGEO, S.A., 4.42%
- TECNICAS REUNIDAS, S.A., 3.76%
- AMPER, S.A., 2.60%
Full table: most shorted Spanish stocks.