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Spanish short selling: week 37, 2025

From 8 Sep 2025 to 12 Sep 2025, 30 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

CompanyStartEndChange (pp)
SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A.9.38%10.14%+0.76
ENAGAS, S.A.8.79%9.33%+0.54
SACYR, S.A.1.11%1.31%+0.20
ACCIONA, S.A.2.30%2.40%+0.10
REPSOL, S.A.2.79%2.80%+0.01

Biggest falls

CompanyStartEndChange (pp)
GRIFOLS, S.A.2.25%2.23%−0.02
ORYZON GENOMICS, S.A.1.90%1.89%−0.01

New disclosures

No companies entered the dataset this week.

Most shorted at week end

  1. SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A., 10.14%
  2. ENAGAS, S.A., 9.33%
  3. REPSOL, S.A., 2.80%
  4. ACCIONA, S.A., 2.40%
  5. GRIFOLS, S.A., 2.23%

Full table: most shorted Spanish stocks.