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Spanish short selling: week 36, 2025

From 1 Sep 2025 to 5 Sep 2025, 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

CompanyStartEndChange (pp)
SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A.9.24%9.38%+0.14
ORYZON GENOMICS, S.A.1.81%1.90%+0.09

Biggest falls

CompanyStartEndChange (pp)
ENAGAS, S.A.8.88%8.79%−0.09

New disclosures

No companies entered the dataset this week.

Most shorted at week end

  1. SOLARIA ENERGIA Y MEDIOAMBIENTE, S.A., 9.38%
  2. ENAGAS, S.A., 8.79%
  3. REPSOL, S.A., 2.79%
  4. ACCIONA, S.A., 2.30%
  5. GRIFOLS, S.A., 2.25%

Full table: most shorted Spanish stocks.