NORTEL NETWORKS CORP

Operating margin

−433.3%

Net margin

13670.4%

Return on equity

−110.2%

Return on assets

42.8%

Return on capital (ROCE)

−1.4%

Liabilities / assets

131.4%

Debt / equity

—

Book value / share

$-6.72

Revenue growth (YoY)

−95.6%

Net income growth (YoY)

—

Computed from the company's own SEC figures — no market price, so these are facts, not a valuation. Book value per share is reported equity ÷ shares; it is not the stock price.

Altman Z″ (distress)

-15.87distress

Accruals / assets

46.2%high accruals

Piotroski F-Score

5/9mixed

Altman Z″is a textbook bankruptcy-distress score from book values only (>2.6 safe · 1.1–2.6 grey · <1.1 distress). Accruals = (net income − operating cash flow) ÷ assets; persistently high accruals are an earnings-quality red flag. Beneish M-Scoreis an eight-ratio screen comparing this year with last (M > −1.78 = elevated manipulation-risk screen, not proof). Piotroski F-Scorecounts how many of nine fundamental-health checks pass (shown as passed / applicable; we use operating margin and total liabilities as documented proxies where the exact input isn't XBRL-tagged). Computed from SEC filings — descriptive factors, not advice or a forecast.

• Director / officer changeOct 3, 2012
• Director / officer changeSep 24, 2012
• Results of operations · Director / officer change · Other material eventAug 10, 2012
• Entered a material agreement · Other material eventJun 25, 2012
• Results of operationsMay 10, 2012
• Director / officer change · Other material eventDec 15, 2011
• Results of operationsNov 15, 2011
• Other material eventNov 3, 2011

Events the company reported on Form 8-K, labelled by the SEC item code it filed under — its own classification, not our interpretation.