Companhia Siderúrgica Nacional (CSNA3.SA)

Companhia Siderúrgica Nacional stock price today, ATLAS forecast and fair value

Basic Materials · Steel · B3 (Brasil Bolsa Balcão) · Brazil

R$6.07▲ +5.20%

Prices as of Oct 23, 2026 · BRL

ATLAS fair value

R$6.01

Close to fair value · 1% premium

Chance of rising in 1 month

46%

that it ends higher than today in 21 sessions

0%coin flip 50%100%

This is just the summary. See everything on Companhia Siderúrgica Nacional 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.
  • Officers and shareholdersWho runs the company and which funds hold its shares.
  • Customer and supplier mapWho it does business with, from its own filings.
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  • Valuation and financialsFair value step by step, quarterly accounts and upcoming events.
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On Companhia Siderúrgica Nacional

  • 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.
Get started →

Plans from €3.99 a month.

ATLAS estimates Companhia Siderúrgica Nacional's fair value at about R$6.01 per share (reasonable range: R$5.40 to R$6.61). At R$6.07, the stock trades within 8% of that figure: close to fair value.

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 Companhia Siderúrgica Nacional a 46% 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$5.25 and R$6.78; in 9 out of 10, between R$4.19 and R$8.50. Estimated annual volatility is 80%.

Price, last 12 months (weekly close)

Companhia Siderúrgica Nacional (CSNA3.SA) — Price, last 12 months (weekly close)Oct 24, 2025: R$8.63. Oct 26, 2026: R$5.01. ▼Fair value R$6.01R$10.14R$4.49Oct 24, 2025Oct 26, 2026

Key numbers

Market cap
R$8.8B
Market cap (USD)
$1.6B
52-week high
R$11.32
52-week low
R$4.19
Revenue (12 months)
R$45.1B
Gross margin
25.8%
Operating margin
8.6%
Net margin
-5.8%
Beta
1.40

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. Companhia Siderúrgica Nacional sits close to 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 CSNA3.SA has traded between R$4.19 and R$11.32. Today it is 46.4% below that high and 45% above its low.

Its beta is 1.40: it tends to move more than the market, both up and down.

About the company

Companhia Siderúrgica Nacional, together with its subsidiaries, operates as an integrated steel producer in Brazil and internationally. It operates through five segments: Steel Industry, Mining, Logistics, Energy, and Cement. The Steel Segment offers produce and sells of flat and long steel.

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Comparable companies

Other companies in the same line of business:

Frequently asked questions

What is Companhia Siderúrgica Nacional (CSNA3.SA) fair value?

About R$6.01 per share according to ATLAS (reasonable range: R$5.40 to R$6.61). With the stock at R$6.07, it is close to that value.

What is the chance CSNA3.SA goes up next month?

46%: close to a coin flip. In half of the simulated outcomes, CSNA3.SA ends the month between R$5.25 and R$6.78.

How big is Companhia Siderúrgica Nacional and what is its P/E ratio?

Companhia Siderúrgica Nacional's market capitalization is R$8.8B. We do not show a P/E because it has no positive earnings to base one on.

How volatile is CSNA3.SA?

ATLAS estimates annual volatility at 80%. In a typical month, half of the outcomes end between R$5.25 and R$6.78.

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

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