Portugal: Monthly Stock Market Performance Insight - May 2026
View Detailed Market Cap Breakdown
| Market Cap | Monthly Gainers | Monthly Losers | Average Return | Total Stocks |
|---|---|---|---|---|
| Large Cap | 4 | 9 | -1.97% | 13 |
| Mid Cap | 3 | 7 | -1.97% | 12 |
Monthly Streak Leaders for May 2026
| Stock | Streak | Streak Return |
|---|---|---|
|
A
Altri SGPS S.A | ALTR
Basic Materials
|
Large Cap
|
4 months ↑ | 21.30% |
|
Altri SGPS S.A starts to shine with a 4-month winning streak (4.32 → 5.24), delivering 21.3% gains. Despite 163.6M in revenue and - 1.8M loss (-1.1% margin) as of Qtr ending Sep 2025, the market sees potential beyond current profitability. This momentum suggests confidence in future execution. |
||
|
J
Jerónimo Martins | JMT
Consumer Defensive
|
Large Cap
|
3 months ↓ | -17.38% |
|
Jerónimo Martins pulls back after a 3-month decline (21.98 → 18.16), down 17.4%. Weak margins on 9.5B revenue with only 166.0M profit (1.8% margin) in Qtr ending Dec 2025 validate market skepticism. Structural improvements needed before sentiment shifts. |
||
|
S
Sporting Clube de | SCP
Communication Services
|
Mid Cap
|
1 months ↑ | 0.00% |
|
Sporting Clube de shows promise with a 1-month winning streak (1.00 → 1.00), delivering 0.0% gains. With 17.1M revenue generating only 16.5M profit (96.7% margin) in Qtr ending Jun 2022, the market prices in future margin expansion potential. |
||
|
C
Corticeira Amorim | COR
Basic Materials
|
Mid Cap
|
1 months ↑ | 1.40% |
|
Corticeira Amorim gains traction with a 1-month winning streak (6.45 → 6.54), delivering 1.4% gains. With 203.4M revenue generating only 11.3M profit (5.6% margin) in Qtr ending Sep 2025, the market prices in future margin expansion potential. |
||
|
R
Ramada Investimentos | RAM
Basic Materials
|
Mid Cap
|
2 months ↓ | -7.77% |
|
Ramada Investimentos pulls back after a 2-month decline (7.46 → 6.88), down 7.8%. However, fundamentals remain robust: 2.5M revenue generating 1.8M profit (73.6% margin) as of Qtr ending Dec 2025 suggests this could be a temporary setback. Value hunters take note. |
||
|
S
Sonaecom SGPS S.A | SNC
Communication Services
|
Mid Cap
|
2 months ↓ | 0.69% |
|
SNC has posted 2 consecutive negative months with 0.69% losses. |
||
Portugal Market Monthly Gainers & Losers: May 2026
Top Portugal Stock Gainers (May 2026)
| Stock | Month Open | Month Close | Monthly Change | Avg Daily Volume | Month Volume |
|---|---|---|---|---|---|
|
B
Banco Comercial | BCP
Financial Services
|
Large Cap
|
€0.91 | €0.97 | 6.59% | 51.2M | 1.1B |
|
A
Altri SGPS S.A | ALTR
Basic Materials
|
Large Cap
|
€4.99 | €5.24 | 5.01% | 242.5K | 5.3M |
|
S
Semapa - Sociedade | SEM
Basic Materials
|
Large Cap
|
€23.10 | €23.75 | 2.37% | 27.4K | 602.8K |
|
N
Navigator Company | NVG
Basic Materials
|
Large Cap
|
€3.35 | €3.40 | 1.49% | 718.2K | 15.8M |
|
S
Sporting Clube de | SCP
Communication Services
|
Mid Cap
|
€1.00 | €1.00 | 2.04% | 1.6K | 35.4K |
|
C
Corticeira Amorim | COR
Basic Materials
|
Mid Cap
|
€6.45 | €6.54 | 1.87% | 307.0K | 6.8M |
|
N
Novabase S.G.P.S | NBA
Technology
|
Mid Cap
|
€8.98 | €8.96 | 0.22% | 2.3K | 50.0K |
Biggest Portugal Stock Losers (May 2026)
| Stock | Month Open | Month Close | Monthly Change | Avg Daily Volume | Month Volume |
|---|---|---|---|---|---|
|
J
Jerónimo Martins | JMT
Consumer Defensive
|
Large Cap
|
€20.60 | €18.16 | -11.24% | 1.2M | 25.9M |
|
G
Galp Energia SGPS | GALP
Energy
|
Large Cap
|
€19.92 | €18.64 | -6.61% | 2.0M | 44.4M |
|
N
NOS SGPS S.A | NOS
Communication Services
|
Large Cap
|
€5.64 | €5.26 | -6.41% | 859.2K | 18.9M |
|
R
Redes Energéticas | RENE
Utilities
|
Large Cap
|
€3.77 | €3.54 | -6.35% | 639.4K | 14.1M |
|
E
EDP - Energias de | EDP
Utilities
|
Large Cap
|
€4.66 | €4.37 | -5.82% | 8.3M | 182.7M |
|
M
Martifer SGPS S.A | MAR
Industrials
|
Mid Cap
|
€2.53 | €2.30 | -8.73% | 40.5K | 891.3K |
|
C
Ctt-Correios De | CTT
Industrials
|
Mid Cap
|
€6.40 | €6.07 | -5.30% | 371.2K | 8.2M |
|
T
Teixeira Duarte S.A | TDSA
Industrials
|
Mid Cap
|
€0.45 | €0.43 | -4.44% | 3.5M | 77.7M |
|
R
Ramada Investimentos | RAM
Basic Materials
|
Mid Cap
|
€7.20 | €6.88 | -4.18% | 2.1K | 45.9K |
|
V
Vista Alegre | VAF
Consumer Cyclical
|
Mid Cap
|
€1.10 | €1.07 | -2.73% | 5.3K | 117.2K |
Most Active Portugal Stocks During May 2026
| Stock | Month Open | Month Close | Monthly Change | Avg Daily Volume | Monthly Volume |
|---|---|---|---|---|---|
|
B
Banco Comercial | BCP
Financial Services
|
Large Cap
|
€0.91 | €0.97 | 6.59% | 51.2M | 1.1B |
|
E
EDP - Energias de | EDP
Utilities
|
Large Cap
|
€4.66 | €4.37 | -5.82% | 8.3M | 182.7M |
|
T
Teixeira Duarte S.A | TDSA
Industrials
|
Mid Cap
|
€0.45 | €0.43 | -4.44% | 3.5M | 77.7M |
|
S
Sonae, SGPS, S.A | SON
Consumer Defensive
|
Large Cap
|
€1.94 | €1.91 | -2.05% | 2.1M | 46.1M |
|
G
Galp Energia SGPS | GALP
Energy
|
Large Cap
|
€19.92 | €18.64 | -6.61% | 2.0M | 44.4M |
|
E
Mota-Engil S.G.P.S | EGL
Industrials
|
Large Cap
|
€4.88 | €4.75 | -1.45% | 1.4M | 30.1M |
|
C
Ctt-Correios De | CTT
Industrials
|
Mid Cap
|
€6.40 | €6.07 | -5.30% | 371.2K | 8.2M |
|
C
Corticeira Amorim | COR
Basic Materials
|
Mid Cap
|
€6.45 | €6.54 | 1.87% | 307.0K | 6.8M |
|
I
Ibersol SGPS S.A | IBS
Consumer Cyclical
|
Mid Cap
|
€11.98 | €11.80 | -1.67% | 51.1K | 1.1M |
|
M
Martifer SGPS S.A | MAR
Industrials
|
Mid Cap
|
€2.53 | €2.30 | -8.73% | 40.5K | 891.3K |
Portugal Sector Performance During May 2026
Basic Materials
Communication Services
Industrials
Healthcare
Data is updated regularly. Monthly performance is calculated based on closing prices.