Latest P/E ratio for Companhia Siderurgica Nacional: -3.61 — see history and peer comparisons.
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The P/E ratio compares a company's stock price to its earnings per share. A lower P/E ratio may indicate that the stock is undervalued.
Companhia Siderurgica Nacional posts a P/E ratio of -3.61. That is below the Materials sector average of 27.32. Comparing that reading with peers and prior periods is usually more useful than looking at the number in isolation.
For Materials stocks, a P/E ratio near 27.32 is typical. Companhia Siderurgica Nacional's -3.61 is lower that level. That is roughly 113.2% below the sector mean. Whether that is a warning or an opportunity depends on growth outlook and other fundamentals shown elsewhere on Stockcircle.
Companhia Siderurgica Nacional's P/E ratio of -3.61 comes from dividing a price-based measure by a related financial statistic. Changes can come from the stock price moving, the underlying fundamental shifting, or both. Track both the level and the trend — a rising multiple on falling fundamentals is a different story than a rising multiple on rising earnings.
Context for SID's P/E ratio usually means three checks: (1) trend versus prior periods, (2) level versus peers (average 27.32), and (3) consistency with growth and profitability. This page covers the first two; Companhia Siderurgica Nacional's other metric pages and overview cover the third.
Judging Companhia Siderurgica Nacional against Materials peers is usually better than using a market-wide rule of thumb. Business models inside Materials are more comparable, which makes gaps in P/E ratio easier to interpret. Start with -3.61 here, then scan peer and history charts to see if the gap is persistent.