ATLASATLAS fair value
R$4.54
Below fair value · 40% discount
Range: R$4.08–R$4.99Fair valuePrice
Light (LIGT3.SA)
Light stock price today, ATLAS forecast and fair value
Utilities · Utilities - Renewable · B3 (Brasil Bolsa Balcão) · Brazil
R$2.72▼ -25.89%
Prices as of Oct 26, 2026 · BRL
Chance of rising in 1 month
47%
that it ends higher than today in 21 sessions
0%coin flip 50%100%
This is just the summary. See everything on Light in ATLAS
ATLAS's own quantitative analysis, all in one place.
- Simulation and expected rangeThousands of simulated scenarios: how far the price could rise or fall.
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- Customer and supplier mapWho it does business with, from its own filings.
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On Light
- Simulation and expected rangeThousands of simulated scenarios: how far the price could rise or fall.
- Officers and shareholdersWho runs the company and which funds hold its shares.
- Customer and supplier mapWho it does business with, from its own filings.
- Valuation and financialsFair value step by step, quarterly accounts and upcoming events.
- NewsThe latest on the company, in one place.
And for you
- ATLAS builds your portfolioAnswer a short test and get portfolios that fit you.
- AlertsWe let you know when something changes in your stocks.
- Crisis simulatorHow your portfolio would do in a crash like 2008.
- Practice risk-free$10,000 in virtual money to invest at real prices.
- Global screenerSearch US stocks and stocks from 47 countries with filters.
Plans from €3.99 a month.
ATLAS estimates Light's fair value at about R$4.54 per share (reasonable range: R$4.08 to R$4.99). At R$2.72, the stock trades 40% below it.
It is calculated with valuation multiples of comparable companies. Confidence in the estimate is low. It is an estimate, not a promise: if the company's results change, so does its fair value.
ATLAS's model gives Light a 47% chance of finishing higher a month from now (21 trading sessions) than today: close to a coin flip.
In half of the simulated outcomes the price ends between R$2.37 and R$3.03; in 9 out of 10, between R$1.92 and R$3.75. Estimated annual volatility is 72%.
Price, last 12 months (weekly close)
Key numbers
- Market cap
- R$6.7B
- Market cap (USD)
- $1.3B
- P/E ratio
- 2.6
- 52-week high
- R$6.49
- 52-week low
- R$2.41
- Revenue (12 months)
- R$15.6B
- Gross margin
- 10.7%
- Operating margin
- 0.0%
- Net margin
- 15.4%
- Beta
- 0.61
What this means
These are two different questions: fair value looks at the business (what it is worth given what it earns) and the odds look at the price over the next month. Light sits below fair value and its odds of rising over a month are close to a coin flip. An expensive stock can keep climbing and a cheap one can keep falling, which is why ATLAS shows the two readings separately.
Over the last 52 weeks LIGT3.SA has traded between R$2.41 and R$6.49. Today it is 58.1% below that high and 13% above its low.
On the business: net margin is 15.4%; it trades at 2.6 times earnings.
Its beta is 0.61: it tends to move less than the market.
About the company
Light S.A., together with its subsidiaries, engages in the generation, transmission, distribution, and sale of electric power in Brazil. The company distributes electricity in the state of Rio de Janeiro.
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Comparable companies
Other companies in the same line of business:
Frequently asked questions
What is Light (LIGT3.SA) fair value?
About R$4.54 per share according to ATLAS (reasonable range: R$4.08 to R$4.99). With the stock at R$2.72, it is 40% below it.
What is the chance LIGT3.SA goes up next month?
47%: close to a coin flip. In half of the simulated outcomes, LIGT3.SA ends the month between R$2.37 and R$3.03.
How big is Light and what is its P/E ratio?
Light's market capitalization is R$6.7B. Its price-to-earnings (P/E) ratio is 2.6: you pay R$2.55 for each R$1.00 of yearly earnings.
How volatile is LIGT3.SA?
ATLAS estimates annual volatility at 72%. In a typical month, half of the outcomes end between R$2.37 and R$3.03.
Not investment advice. ATLAS estimates are produced by statistical models from public data; they can be wrong and past performance does not predict future results. Consider your own situation before investing. Disclaimer