Netherlands: Monthly Stock Market Performance Insight

Market Cap	Monthly Gainers	Monthly Losers	Average Return	Total Stocks
Large Cap	33	17	1.72%	53
Mid Cap	13	13	0.95%	29

Monthly Streak Leaders for October 2025

All (10) Large Cap (4) Mid Cap (4) Small Cap (2)

Stock	Streak	Streak Return
P Prosus N.V \| PRX Communication Services \| Large Cap	6 months ↑	48.56%
Prosus N.V maintains strong momentum with a 6-month winning streak (41.60 → 61.80), delivering 48.6% gains. With 740.0M revenue generating only 1.1B profit (147.6% margin) in Qtr ending Sep 2019, the market prices in future margin expansion potential.
A Argenx SE \| ARGX Healthcare \| Large Cap	4 months ↑	44.65%
Argenx SE shows promise with a 4-month winning streak (469.00 → 678.40), delivering 44.6% gains. With 808.1M revenue generating only 209.2M profit (25.9% margin) in Qtr ending Jun 2025, the market prices in future margin expansion potential.
H Heineken N.V \| HEIA Consumer Defensive \| Large Cap	6 months ↓	-16.69%
HEIA faces significant headwinds with 6 consecutive negative months, down 16.69%.
E Euronext N.V \| ENX Financial Services \| Large Cap	4 months ↓	-14.39%
Euronext N.V consolidates with a 4-month decline (145.20 → 124.30), down 14.4%. However, fundamentals remain robust: 465.4M revenue generating 196.5M profit (42.2% margin) as of Qtr ending Jun 2025 suggests this could be a temporary setback. Value hunters take note.
A AMG Critical \| AMG Basic Materials \| Mid Cap	7 months ↑	108.65%
AMG Critical shows consistent strength with a 7-month winning streak (14.34 → 29.92), delivering 108.6% gains. With 374.2M revenue generating only 10.6M profit (2.8% margin) in Qtr ending Jun 2025, the market prices in future margin expansion potential.
N NewAmsterdam Pharma \| NAMS Healthcare \| Mid Cap	4 months ↑	70.29%
NewAmsterdam Pharma starts to shine with a 4-month winning streak (18.01 → 30.67), delivering 70.3% gains. Despite 3.0M in revenue and - 39.5M loss (-1327.3% margin) as of Qtr ending Mar 2025, the market sees potential beyond current profitability. This momentum suggests confidence in future execution.
A AFC Ajax N.V \| AJAX Communication Services \| Mid Cap	6 months ↓	-5.40%
AJAX faces significant headwinds with 6 consecutive negative months, down 5.40%.
O OCI N.V \| OCI Basic Materials \| Mid Cap	4 months ↓	-49.22%
OCI N.V takes a breather following a 4-month decline (7.68 → 3.90), down 49.2%. Weak margins on 421.9M revenue with only 50.4M profit (11.9% margin) in Qtr ending Jun 2024 validate market skepticism. Structural improvements needed before sentiment shifts.
P Playa Hotels \| PLYA Consumer Cyclical \| Small Cap	3 months ↑	1.13%
Playa Hotels shows promise with a 3-month winning streak (13.33 → 13.48), delivering 1.1% gains. The financials tell a compelling story: 267.3M revenue generating 43.1M net profit (16.1% margin) demonstrates exceptional profit margins as of Qtr ending Mar 2025.
P Pharming Group N.V \| PHAR Healthcare \| Small Cap	1 months ↑	5.56%
Pharming Group N.V gains traction with a 1-month winning streak (15.29 → 16.14), delivering 5.6% gains. With 93.2M revenue generating only 4.6M profit (4.9% margin) in Qtr ending Jun 2025, the market prices in future margin expansion potential.

Netherlands Market Monthly Gainers & Losers: October 2025

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

Top Netherlands Stock Gainers (October 2025)

Stock	Month Open	Month Close	Monthly Change	Avg Daily Volume	Month Volume
A Arcadis N.V \| ARCAD Industrials \| Large Cap	€43.90	€47.50	10.72%	48.26K	1.06M
G Galapagos NV \| GLPGA Healthcare \| Large Cap	€29.16	€31.84	9.19%	27.21K	598.56K
T Theon International \| THEON Industrials \| Large Cap	€33.20	€35.25	8.46%	35.61K	783.49K
M ArcelorMittal \| MT Basic Materials \| Large Cap	€30.45	€33.05	8.08%	433.43K	9.54M
A ASM International \| ASM Technology \| Large Cap	€504.80	€547.60	7.20%	30.95K	680.94K
P Pharming Group N.V \| PHARM Healthcare \| Mid Cap	€1.27	€1.38	11.29%	4.36M	95.88M
A Alfen N.V \| ALFEN Industrials \| Mid Cap	€9.65	€10.34	7.15%	75.18K	1.65M
P PostNL N.V \| PNL Industrials \| Mid Cap	€1.04	€1.10	5.77%	574.30K	12.63M
Y Younited Financial \| YOUNI Financial Services \| Mid Cap	€7.25	€7.65	5.52%	1	15
A AMG Critical \| AMG Basic Materials \| Mid Cap	€28.56	€29.92	4.32%	27.89K	613.57K

Biggest Netherlands Stock Losers (October 2025)

Stock	Month Open	Month Close	Monthly Change	Avg Daily Volume	Month Volume
H Havas N.V \| HAVAS Communication Services \| Large Cap	€1.57	€1.47	-6.37%	191.34K	4.21M
W Wolters Kluwer N.V \| WKL Industrials \| Large Cap	€116.15	€112.25	-3.36%	119.51K	2.63M
N Nepi Rockcastle N.V \| NRP Real Estate \| Large Cap	€6.94	€6.78	-2.31%	101	2.22K
F Flow Traders \| FLOW Financial Services \| Large Cap	€25.52	€24.94	-2.27%	19.67K	432.70K
K Koninklijke KPN N.V \| KPN Communication Services \| Large Cap	€4.10	€4.02	-1.71%	1.08M	23.75M
M Motork plc \| MTRK Technology \| Mid Cap	€4.21	€4.24	-5.57%	372	8.18K
A Azerion Group N.V \| AZRN Communication Services \| Mid Cap	€1.29	€1.26	-2.33%	3.40K	74.80K
V Volta Finance \| VTA Financial Services \| Mid Cap	€6.94	€6.80	-1.73%	2.53K	55.63K
F Ferrari Group PLC \| FERGR Industrials \| Mid Cap	€8.60	€8.39	-1.53%	4.62K	101.65K
S Sif Holding N.V \| SIFG Industrials \| Mid Cap	€7.75	€7.62	-1.42%	7.56K	166.24K

Most Active Netherlands Stocks During October 2025

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

Stock	Month Open	Month Close	Monthly Change	Avg Daily Volume	Monthly Volume
P Pharming Group N.V \| PHARM Healthcare \| Mid Cap	€1.27	€1.38	11.29%	4.36M	95.88M
K Koninklijke KPN N.V \| KPN Communication Services \| Large Cap	€4.10	€4.02	-1.71%	1.08M	23.75M
I ING Groep N.V \| INGA Financial Services \| Large Cap	€22.09	€21.96	-0.54%	965.66K	21.24M
S Shell plc \| SHELL Energy \| Large Cap	€30.50	€31.10	2.07%	644.51K	14.18M
A Aegon \| AGN Financial Services \| Large Cap	€6.80	€6.76	-1.02%	638.36K	14.04M
P PostNL N.V \| PNL Industrials \| Mid Cap	€1.04	€1.10	5.77%	574.30K	12.63M
M ArcelorMittal \| MT Basic Materials \| Large Cap	€30.45	€33.05	8.08%	433.43K	9.54M
O OCI N.V \| OCI Basic Materials \| Mid Cap	€3.92	€3.90	-1.02%	107.43K	2.36M
A Alfen N.V \| ALFEN Industrials \| Mid Cap	€9.65	€10.34	7.15%	75.18K	1.65M
T TomTom N.V \| TOM2 Technology \| Mid Cap	€5.38	€5.45	1.68%	31.93K	702.34K