Belgian short selling: week 15, 2026

From 6 Apr 2026 to 10 Apr 2026, 15 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

Company	Start	End	Change (pp)
ONTEX	0.50%	1.03%	+0.53
SYENSQO	1.20%	1.23%	+0.03

Biggest falls

Company	Start	End	Change (pp)
UMICORE	0.59%	0.53%	−0.06
SOLVAY	6.00%	5.98%	−0.02

New disclosures

No companies entered the dataset this week.

Most shorted at week end

SOLVAY, 5.98%
AZELIS, 1.89%
SYENSQO, 1.23%
BIOCARTIS, 1.21%
AEDIFICA, 1.13%

Full table: most shorted Belgian stocks.