3. TearLab ( TEAR) Company Profile: Formerly known as OccuLogix, TearLab is an ophthalmic-device company commercializing a proprietary in-vitro diagnostic-tear testing platform, the TearLab test for dry-eye disease. Altman Z-score: -88.82 Closing Price: $2.62 (Sept. 15) Financial Metrics: TearLab has a price-to-book ratio of 3.4, which suggests the stock may be overvalued based on book value. TearLab's quick ratio, which measures the ability to meet short-term obligations with its most liquid assets, is 1.5, indicating the ophthalmic device company should be able to meet its current liabilities. Analyst Consensus: No analyst covers TearLab.