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Belgian short selling: week 48, 2025

From 24 Nov 2025 to 28 Nov 2025, 13 Belgium 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 FSMA data.

Biggest rises

CompanyStartEndChange (pp)
SOLVAY3.53%4.14%+0.61
WERELDHAVE BELGIUM0.74%0.93%+0.19
AEDIFICA3.31%3.40%+0.09
SYENSQO1.29%1.30%+0.01

Biggest falls

No disclosed positions fell this week.

New disclosures

No companies entered the dataset this week.

Left the dataset

Last published by the FSMA 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.

Most shorted at week end

  1. SOLVAY, 4.14%
  2. AEDIFICA, 3.40%
  3. ONTEX, 1.40%
  4. SYENSQO, 1.30%
  5. BIOCARTIS, 1.21%

Full table: most shorted Belgian stocks.