| Industry Range | | Price / Earnings | N/A | |
| Book Value | 5.26 | |
| Earnings Per Share | -$2.60 | |
| Price To Sales Ratio | 16.28 | |
| Price To Book Ratio | 2.36 | |
| Price To Tangible Book Ratio | 2.36 | |
| Price/Cash Flow Ratio | N/A | |
| Price/Free Cash Flow Ratio | N/A | |
| Industry Range | | Market Capitalization | 1.1B | |
| Float (MRQ) | 88.60% | |
| Shares Outstanding (MRQ) | 49.3M | |
| Short Interest as a % of Float (MRQ) | 5.67% | |
| Shares Held By Institutions (MRQ) | 44.5M | |
| Industry Range | | Sales | $26.6M | |
| Gross Margin | 89.52% | |
| Net Profit Margin | -479.26% | |
| EBIT Margin | -494.24% | |
| EBITDA Margin | -483.76% | |
| Operating Margins | -494.24% | |
All fundamentals are Trailing Twelve Months (TTM) unless noted. Preliminary data is based on the company's 8-K
statement or press releases. MRQ = Most Recent Quarter
| Industry Range | | Current Ratio (MRQ) | 7.80 | |
| Quick Ratio (MRQ) | 7.80 | |
| Total Debt/Equity Ratio (MRQ) | 1.70 | |
| Debt/Common Equity Ratio (MRQ) | 1.70 | |
| Industry Range | | Return on Equity | -49.52% | |
| Return on Assets | -43.72% | |
| Asset Turnover | 0.09 | |
| Receivables Turnover | 4.20 | |
| Inventory Turnover | N/A | |
| Industry Range | | EPS Growth Annual | -3.70% | |
| Dividend Yield 5 Year Average | 0.00% | |
| Current Dividend Yield | 0.00% | |
| Current Payout Ratio | N/A | |
*PTGX does not pay a dividend. The average dividend yield for companies in the Biotechnology industry is 1.63%