Belgium: Monthly Stock Market Performance Insight - October 2025

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Monthly Gainers

Monthly Losers

Average Return

0.30%

Total Stocks

153

View Detailed Market Cap Breakdown

Market Cap	Monthly Gainers	Monthly Losers	Average Return	Total Stocks
Large Cap	27	12	1.05%	40
Mid Cap	14	18	0.18%	35

Monthly Streak Leaders for October 2025

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

Stock	Streak	Streak Return
K KBC Group NV \| KBC Financial Services \| Large Cap	6 months ↑	23.85%
KBC Group NV maintains strong momentum with a 6-month winning streak (82.52 → 102.20), delivering 23.8% gains. With 2.9B revenue generating only 546.0M profit (18.8% margin) in Qtr ending Mar 2025, the market prices in future margin expansion potential.
M Montea N.V \| MONT Real Estate \| Large Cap	6 months ↑	8.24%
Montea N.V shows consistent strength with a 6-month winning streak (64.21 → 69.50), delivering 8.2% gains. The financials tell a compelling story: 34.2M revenue generating 37.2M net profit (108.7% margin) demonstrates exceptional profit margins as of Qtr ending Mar 2025.
S Sofina SA \| SOF Financial Services \| Large Cap	4 months ↓	-10.07%
SOF under pressure with 4 straight negative months, declining 10.07%.
F Fluxys Belgium NV \| FLUX Energy \| Large Cap	4 months ↓	-8.41%
FLUX under pressure with 4 straight negative months, declining 8.41%.
T Tinc Comm. VA \| TINC Financial Services \| Mid Cap	3 months ↑	4.98%
TINC maintains strong performance with 3 straight positive months, gaining 4.98%.
V Vastned Retail N.V \| VASTB Real Estate \| Mid Cap	2 months ↑	5.92%
Vastned Retail N.V gains traction with a 2-month winning streak (28.70 → 30.40), delivering 5.9% 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.
E Econocom Group S.E \| ECONB Technology \| Mid Cap	5 months ↓	-14.07%
ECONB under pressure with 5 straight negative months, declining 14.07%.
R Recticel S.A \| RECT Industrials \| Mid Cap	3 months ↓	-19.37%
RECT under pressure with 3 straight negative months, declining 19.37%.
C CMB Tech N.V \| CMBT Energy \| Small Cap	2 months ↑	10.72%
CMB Tech N.V gains traction with a 2-month winning streak (8.49 → 9.40), delivering 10.7% gains. The financials tell a compelling story: 235.0M revenue generating 40.4M net profit (17.2% margin) demonstrates exceptional profit margins as of Qtr ending Mar 2025.

Belgium Market Monthly Gainers & Losers: October 2025

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

Top Belgium Stock Gainers (October 2025)

Stock	Month Open	Month Close	Monthly Change	Avg Daily Volume	Month Volume
A Argenx SE \| ARGX Healthcare \| Large Cap	€625.00	€678.40	9.92%	17.25K	379.42K
C Cenergy Holdings \| CENER Industrials \| Large Cap	€12.20	€13.14	9.14%	1.26K	27.64K
U UCB S.A \| UCB Healthcare \| Large Cap	€244.30	€252.00	7.23%	38.04K	836.89K
T Titan Cement \| TITC Basic Materials \| Large Cap	€34.75	€36.40	4.60%	1.33K	29.19K
S Shurgard Self \| SHUR Real Estate \| Large Cap	€32.30	€33.70	4.50%	17.99K	395.71K
N Nyxoah S.A \| NYXH Healthcare \| Mid Cap	€3.95	€4.40	11.39%	11.09K	243.88K
B Biotalys N.V \| BTLS Basic Materials \| Mid Cap	€4.54	€4.94	8.57%	4.38K	96.37K
C Campine S.A \| CAMB Industrials \| Mid Cap	€232.00	€232.00	5.45%	128	2.82K
D Deceuninck NV \| DECB Industrials \| Mid Cap	€2.04	€2.15	4.37%	41.51K	913.19K
T Tinc Comm. VA \| TINC Financial Services \| Mid Cap	€10.26	€10.54	2.93%	3.18K	70.03K

Biggest Belgium Stock Losers (October 2025)

Stock	Month Open	Month Close	Monthly Change	Avg Daily Volume	Month Volume
C Colruyt Group N.V \| COLR Consumer Defensive \| Large Cap	€33.38	€32.36	-3.46%	8.90K	195.83K
F Fluxys Belgium NV \| FLUX Energy \| Large Cap	€19.50	€19.05	-2.81%	739	16.26K
E Euronav NV \| EURN Energy \| Large Cap	€8.11	€7.95	-2.81%	33.92K	746.31K
C CMB Tech N.V \| CMBT Energy \| Large Cap	€8.11	€7.95	-2.81%	33.92K	746.31K
C Cofinimmo SA \| COFB Real Estate \| Large Cap	€73.90	€71.90	-2.57%	8.23K	180.96K
F Floridienne S.A \| FLOB Industrials \| Mid Cap	€600.00	€570.00	-8.80%	36	792
E Econocom Group S.E \| ECONB Technology \| Mid Cap	€1.77	€1.71	-3.39%	3.29K	72.44K
R Recticel S.A \| RECT Industrials \| Mid Cap	€8.93	€8.66	-3.13%	13.27K	291.96K
H Home Invest Belgium \| HOMI Real Estate \| Mid Cap	€19.66	€19.04	-2.96%	1.75K	38.58K
I Immobel S.A \| IMMO Real Estate \| Mid Cap	€25.85	€25.25	-2.32%	367	8.07K

Most Active Belgium Stocks During October 2025

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

Stock	Month Open	Month Close	Monthly Change	Avg Daily Volume	Monthly Volume
A Anheuser-Busch InBev \| ABI Consumer Defensive \| Large Cap	€50.74	€50.60	-0.39%	194.54K	4.28M
U Umicore \| UMI Industrials \| Large Cap	€15.02	€15.13	0.13%	73.39K	1.61M
W Warehouses De Pauw \| WDP Real Estate \| Large Cap	€21.22	€21.68	1.88%	54.56K	1.20M
K KBC Group NV \| KBC Financial Services \| Large Cap	€101.40	€102.20	0.74%	50.76K	1.12M
A Azelis Group NV \| AZE Basic Materials \| Large Cap	€11.50	€11.87	2.86%	46.41K	1.02M
D Deceuninck NV \| DECB Industrials \| Mid Cap	€2.04	€2.15	4.37%	41.51K	913.19K
B Bpost SA \| BPOST Industrials \| Mid Cap	€2.31	€2.29	-1.29%	21.38K	470.40K
R Recticel S.A \| RECT Industrials \| Mid Cap	€8.93	€8.66	-3.13%	13.27K	291.96K
O Ontex Group N.V \| ONTEX Consumer Defensive \| Mid Cap	€6.18	€6.26	-0.95%	12.40K	272.82K
N Nyxoah S.A \| NYXH Healthcare \| Mid Cap	€3.95	€4.40	11.39%	11.09K	243.88K