ATLASTop 10 Most Stable Stocks in Portugal (October 2026)
ATLAS looked at 23 listed companies in Portugal and kept the 11 that are large and liquid enough to rank (market value of at least $1 billion, with real trading volume). The table shows the 10 with the smallest expected price swings. "Stable" here means smaller typical moves up or down, not a forecast of gains. The steadiest, REN - Redes Energéticas Nacionais SGPS, has a typical monthly move of ±3.4%; the median of the whole group is ±5.6%. These are estimates.
Updated Oct 27, 2026. Volatility is recalculated from the latest stored prices; this page refreshes at least every 6 hours.
| # | Company | Price | Typical monthly move |
|---|---|---|---|
| 1 | RENE.LSREN - Redes Energéticas Nacionais SGPS | €3.55 | ±3.4% |
| 2 | NVG.LSThe Navigator Company | €2.98 | ±3.7% |
| 3 | ALTR.LSAltri SGPS | €4.31 | ±4.5% |
| 4 | SON.LSSonae SGPS | €2.14 | ±4.7% |
| 5 | SEM.LSSemapa | €19.50 | ±5.0% |
| 6 | EDP.LSEDP - Energias de Portugal | €4.76 | ±5.6% |
| 7 | NOS.LSNOS S.G.P.S. | €5.12 | ±5.6% |
| 8 | JMT.LSJeronimo Martins SGPS | €18.04 | ±6.4% |
| 9 | BCP.LSBanco Comercial Portugues | €1.07 | ±6.7% |
| 10 | EGL.LSMota-Engil SGPS | €4.62 | ±8.3% |
Fair value gap: a negative number means the price is below ATLAS fair value. "Chance up" is the probability of a higher close in 21 trading sessions (about a month) in ATLAS's calibrated model.
The top 10 in a sentence
- REN - Redes Energéticas Nacionais SGPS (RENE.LS) has a market value of $2.7B. ATLAS puts it 45% below its fair value. ATLAS gives it a 56% chance of closing higher in a month.
- The Navigator Company (NVG.LS) has a market value of $2.4B. ATLAS puts it close to its fair value. ATLAS gives it a 56% chance of closing higher in a month.
- Altri SGPS (ALTR.LS) has a market value of $1.0B. It trades 46% above ATLAS fair value. ATLAS gives it a 54% chance of closing higher in a month.
- Sonae SGPS (SON.LS) has a market value of $4.6B. ATLAS puts it 65% below its fair value. ATLAS gives it a 54% chance of closing higher in a month.
- Semapa (SEM.LS) has a market value of $1.7B. ATLAS gives it a 54% chance of closing higher in a month.
- EDP - Energias de Portugal (EDP.LS) has a market value of $22.8B. It trades 21% above ATLAS fair value. ATLAS gives it a 53% chance of closing higher in a month.
- NOS S.G.P.S. (NOS.LS) has a market value of $3.0B. ATLAS puts it 50% below its fair value. ATLAS gives it a 53% chance of closing higher in a month.
- Jeronimo Martins SGPS (JMT.LS) has a market value of $12.3B. ATLAS puts it 54% below its fair value. ATLAS gives it a 52% chance of closing higher in a month.
- Banco Comercial Portugues (BCP.LS) has a market value of $18.3B. It trades 41% above ATLAS fair value. ATLAS gives it a 52% chance of closing higher in a month.
- Mota-Engil SGPS (EGL.LS) has a market value of $1.6B. ATLAS puts it 56% below its fair value. ATLAS gives it a 51% chance of closing higher in a month.
How ATLAS ranks the most stable stocks in Portugal
For each stock, ATLAS measures how much its price has been moving day to day (its volatility, from the same signal used on each company page). The typical monthly move shown is that daily volatility scaled to 21 trading sessions (about a month): roughly, a swing of that size up or down in a month would not be unusual. Stocks are ranked from the smallest to the largest.
To keep small, thinly traded stocks and near-frozen prices (for example companies being acquired for cash) out, only companies with a market value of at least $1 billion, enough daily trading volume and a minimum level of movement are ranked; funds and trusts are excluded. Among the largest with data, we show the steadiest.
Limits: stable does not mean safe, and it does not mean the price will rise. A stable stock can still fall, and volatility changes over time, often when you least expect it. The chance of rising is shown as context; it comes from the same model as the company pages, which uses the same long-run drift for every stock. All figures are estimates, they can be wrong, and past results do not guarantee future ones. This is information, not investment advice.
Frequently asked questions
Which are the most stable stocks in Portugal?
In October 2026, the three with the smallest expected monthly swings among large, liquid companies are REN - Redes Energéticas Nacionais SGPS, The Navigator Company, and Altri SGPS. REN - Redes Energéticas Nacionais SGPS is the steadiest, with a typical monthly move of ±3.4%.
What does "stable" mean here?
That the price has recently moved less from day to day than other large, liquid stocks, so ATLAS expects smaller swings over the next month. It says nothing about whether the price will go up or down.
Does stable mean safe?
No. Stable stocks can still fall, sometimes sharply, and volatility can rise without warning. The figures are statistical estimates, not guarantees.
Which stocks are included?
Of 23 listed companies in Portugal, 11 pass the filters: market value of at least $1 billion, enough trading volume, not a fund or trust, a minimum level of movement and enough price history to estimate the model. The list shows the 10 steadiest.
How often is the list updated?
Prices and signals come from ATLAS's stored data, refreshed every day, and this page is rebuilt at least every 6 hours. The date at the top shows the latest data used.
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Information only, not investment advice. ATLAS estimates come from statistical models using public data; they can be wrong, and past results do not guarantee future ones. Disclaimer