Sigma Lithium Corporation Common Shares (SGML)

FairStock Score: 13/100 — RISKY

Key Financials

AI Analysis

AI-generated, general educational analysis — not personal investment advice.

As a value investor, I look first for a durable business, honest financials, and a margin of safety. Sigma Lithium is a Brazilian lithium developer and supplier to the battery chain. In the 2026 second quarter, the most recent reported period, revenue was $54.7 million and net income was -$2.6 million, a -4.83% net margin. That tells me the operation is generating sales but not yet earning a profit. The data provided show rapid top-line growth, but there is not enough filed history to judge a full cycle; FairStock notes no Lynch category because there are zero years of filed results and three are needed. Financial health is not comforting. Debt-to-equity is 3.37, return on equity is -31.64%, return on capital employed is 4.15%, and the Piotroski F-Score is 3/9. The Altman Z-Score of 2.33 sits in the gray zone. Free cash flow is positive at $29.5 million, but the FCF yield is only 1.3% against a $2.2 billion market cap. Valuation looks demanding. At the 2026-10-13 close of $8.70, the FairStock-calculated price-to-book is 11.92, the negative price-to-earnings is -36.25, and EV/EBITDA is 94.46. A FairStock Score of 13/100 confirms the numbers are weak. The stock is also volatile, with a 52-week range of $4.61 to $24.48. I see a commodity business without a clear moat from the data. Lithium prices, execution, and financing will drive results. The shares may be discounting a bright future, but I prefer paying a modest price for demonstrated earning power. Here, the burden of proof remains high.

In plain English: Sigma Lithium is a mining company working on lithium deposits in Brazil for electric-vehicle batteries. The business is not yet consistently profitable: in the 2026 second quarter it had sales but posted a small loss. Based on the numbers given, the shares look expensive compared with profits and assets, and the balance sheet carries a lot of debt.

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Data as of 2026-10-13 close · note generated 2026-10-15 · model deepseek-flash

Fundamentals from company filings and market-data providers; prices are end-of-day, not real-time. AI-generated analysis is general and educational — not personal investment advice. Scoring methodology · Score test · Disclaimer