Belgium: Weekly Stock Market Performance Insight - September 15 - 21, 2025

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Weekly Gainers

Weekly Losers

Average Return

0.43%

Total Stocks

156

View Detailed Market Cap Breakdown

Market Cap	Weekly Gainers	Weekly Losers	Average Return	Total Stocks
Large Cap	18	23	-0.47%	41
Mid Cap	14	18	-0.72%	34

Weekly Streak Leaders for Week: September 15 - 21, 2025

All (9) Large Cap (4) Mid Cap (4) Small Cap (1)

Stock	Streak	Streak Return
V Viohalco S.A \| VIO Industrials \| Large Cap	2 weeks ↑	8.45%
C Cenergy Holdings \| CENER Industrials \| Large Cap	2 weeks ↑	10.69%
S Syneos Health \| SYENS Basic Materials \| Large Cap	4 weeks ↓	-11.74%
Syneos Health consolidates with a 4-week decline (78.22 → 69.04), down 11.7%. Weak margins on 1.7B revenue with only 2.0M profit (0.1% margin) in Qtr ending Mar 2025 validate market skepticism. Structural improvements needed before sentiment shifts.
S Solvay SA \| SOLB Basic Materials \| Large Cap	4 weeks ↓	-7.51%
Solvay SA pulls back after a 4-week decline (29.04 → 26.86), down 7.5%. Revenue of 1.2B provides a foundation, but 83.0M net income (6.7% margin) in Qtr ending Mar 2025 highlights operational challenges that need addressing.
E Exmar N.V \| EXM Energy \| Mid Cap	4 weeks ↑	14.93%
V Vastned Retail N.V \| VASTB Real Estate \| Mid Cap	3 weeks ↑	1.74%
Vastned Retail N.V starts to shine with a 3-week winning streak (28.70 → 29.20), delivering 1.7% gains. With 4.5M revenue generating only 443,000 profit (9.8% margin) in Qtr ending Dec 2024, the market prices in future margin expansion potential.
K Kinepolis Group NV \| KIN Communication Services \| Mid Cap	5 weeks ↓	-11.87%
E Econocom Group S.E \| ECONB Technology \| Mid Cap	5 weeks ↓	-6.04%
C CMB Tech N.V \| CMBT Energy \| Small Cap	1 weeks ↓	-2.16%
CMB Tech N.V pulls back after a 1-week decline (9.72 → 9.51), down 2.2%. However, fundamentals remain robust: 235.0M revenue generating 40.4M profit (17.2% margin) as of Qtr ending Mar 2025 suggests this could be a temporary setback. Value hunters take note.

Belgium Market Weekly Gainers & Losers: September 15 - 21, 2025

All (20) Large Cap (10) Mid Cap (10)

Top Belgium Stock Gainers (September 15 - 21, 2025)

Stock	Week Open	Week Close	Weekly Change	Avg Daily Volume	Week Volume
C Cenergy Holdings \| CENER Industrials \| Large Cap	€11.28	€11.80	3.33%	7.62K	38.11K
A Azelis Group NV \| AZE Basic Materials \| Large Cap	€11.94	€12.26	3.29%	505.82K	2.53M
D Deme Group N.V \| DEME Industrials \| Large Cap	€123.80	€127.20	2.75%	9.16K	45.78K
B Bekaert NV \| BEKB Industrials \| Large Cap	€38.00	€38.95	2.37%	23.68K	118.38K
V Viohalco S.A \| VIO Industrials \| Large Cap	€6.58	€6.93	2.21%	2.17K	10.84K
B Biotalys N.V \| BTLS Basic Materials \| Mid Cap	€4.39	€4.54	4.61%	23.88K	119.41K
O Ontex Group N.V \| ONTEX Consumer Defensive \| Mid Cap	€6.20	€6.59	4.60%	131.56K	657.81K
A Atenor SA \| ATEB Real Estate \| Mid Cap	€3.12	€3.14	3.63%	5.60K	28.01K
R Recticel S.A \| RECT Industrials \| Mid Cap	€8.85	€9.02	1.92%	65.79K	328.96K
E Exmar N.V \| EXM Energy \| Mid Cap	€9.70	€10.16	1.60%	1.97K	9.84K

Biggest Belgium Stock Losers (September 15 - 21, 2025)

Stock	Week Open	Week Close	Weekly Change	Avg Daily Volume	Week Volume
F Fagron NV \| FAGR Healthcare \| Large Cap	€20.80	€19.60	-5.77%	97.03K	485.16K
S Syneos Health \| SYENS Basic Materials \| Large Cap	€72.32	€69.04	-4.27%	181.12K	905.61K
A Argenx SE \| ARGX Healthcare \| Large Cap	€648.00	€618.40	-4.03%	71.74K	358.71K
E Euronav NV \| EURN Energy \| Large Cap	€8.30	€7.96	-3.63%	233.81K	1.17M
L Lotus Bakeries NV \| LOTB Consumer Defensive \| Large Cap	€8,370.00	€8,050.00	-3.59%	529	2.65K
N Nyxoah S.A \| NYXH Healthcare \| Mid Cap	€4.70	€4.05	-14.56%	104.64K	523.20K
I Ion Beam \| IBAB Healthcare \| Mid Cap	€11.52	€11.04	-4.66%	28.77K	143.83K
C Compagnie du Bois \| COMB Financial Services \| Mid Cap	€262.00	€251.00	-4.20%	253	1.26K
C Campine S.A \| CAMB Industrials \| Mid Cap	€248.00	€241.00	-3.98%	274	1.37K
H Hyloris \| HYL Healthcare \| Mid Cap	€6.32	€6.12	-3.47%	3.15K	15.75K

Most Active Belgium Stocks During Week: September 15 - 21, 2025

All (10) Large Cap (5) Mid Cap (5)

Stock	Week Open	Week Close	Weekly Change	Avg Daily Volume	Weekly Volume
A Anheuser-Busch InBev \| ABI Consumer Defensive \| Large Cap	€50.20	€50.04	0.08%	1.32M	6.58M
A Azelis Group NV \| AZE Basic Materials \| Large Cap	€11.94	€12.26	3.29%	505.82K	2.53M
K KBC Group NV \| KBC Financial Services \| Large Cap	€102.40	€99.76	-2.05%	328.36K	1.64M
W Warehouses De Pauw \| WDP Real Estate \| Large Cap	€21.22	€20.92	-0.95%	282.82K	1.41M
C CMB Tech N.V \| CMBT Energy \| Large Cap	€8.30	€8.13	-1.57%	268.83K	1.34M
B Bpost SA \| BPOST Industrials \| Mid Cap	€2.34	€2.33	-1.27%	200.45K	1.00M
O Ontex Group N.V \| ONTEX Consumer Defensive \| Mid Cap	€6.20	€6.59	4.60%	131.56K	657.81K
N Nyxoah S.A \| NYXH Healthcare \| Mid Cap	€4.70	€4.05	-14.56%	104.64K	523.20K
O Onward Medical N.V \| ONWD Healthcare \| Mid Cap	€5.18	€5.14	0.19%	75.91K	379.57K
R Recticel S.A \| RECT Industrials \| Mid Cap	€8.85	€9.02	1.92%	65.79K	328.96K