US · USD
PTGX
Protagonist Therapeutics Inc
- Day's range
- $136.09 – $141.00
- Day's volume
- $87.2M
- 52-week range
- $65.30 – $158.62
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Create a free accountPTGX in numbers
- Market cap
- $9B
- P/E
- 108.24
- P/B
- 10.66
- Dividend yield (12m)
- 0.00%
PTGX trades at 108.24 times its earnings of the last 12 months.
PTGX price history
PTGX risk and return
Monthly closes adjusted for splits and distributions.
| Metric | 12 months | 36 months | 60 months |
|---|---|---|---|
| Return | +54.10% | +661.61% | +312.52% |
| Volatility (annualized) | 33.23% | 38.18% | 57.74% |
| Largest drawdown | -9.11% | -18.00% | -76.87% |
| Positive months | 6/12 | 22/36 | 32/60 |
How much did investing in PTGX return?
$1,000.00 invested on 11/01/2021 would be worth $4,125.22 today.
- Value today in PTGX
- $4,125.22
- Return over the period
- +312.52%
- Return per year
- +33.32%
- In the S&P 500
- $1,712.05
With dividends reinvested, before taxes and costs, at month-end closes. Past returns do not guarantee future ones.
PTGX fundamentals
Valuation
- P/E108.24
- P/B10.66
- EV/EBITDA149.87
- EV/EBIT153.82
- EV/Revenue31.82
- P/EBIT153.82
- P/S31.82
- P/OCF68.40
- P/FCF68.73
- Earnings yield0.65%
- PEG ratio—
- Earnings per share$1.28
- Book value per share$13.01
Debt
- Net debt—
- Net debt/EBITDA—
- Net debt/Equity—
- Debt/Equity—
- Current ratio21.71
- Quick ratio—
- Cash ratio21.05
Efficiency
- Gross margin—
- EBITDA margin21.24%
- Operating margin20.69%
- Net margin29.40%
- Asset turnover0.32
Profitability
- ROE9.85%
- ROA9.36%
- ROIC6.82%
- Payout0.00%
Growth
- Revenue CAGR (5 years)59.62%
- Earnings CAGR (5 years)—
- Revenue growth (year)—
- Earnings growth (year)—
- Revenue growth (quarter)—
- Earnings growth (quarter)—
What is PTGX's fair price?
Two classic value formulas, with today's numbers. The current price is $138.69.
- Graham's fair price
- $19.36
- 86.04% below the price
√(22.50 × $1.28 × $13.01)
Benjamin Graham paid no more than a P/E of 15 and a P/B of 1.5. Their product, 22.5, times earnings (EPS) and book value per share gives the fair price.
- Bazin's ceiling price
- —
- Does not apply to PTGX: it paid no distributions in the last five years.
Décio Bazin only bought stocks yielding at least 6% a year in distributions. The ceiling price is the average dividend per share of recent years over 6%.
Graham ignores growth and debt; Bazin assumes past distributions repeat. They are references to compare, not a buy recommendation.
PTGX's indicators by year
Multiples at each year's closing price; margins and returns from that year's statements.
| Indicator | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|---|---|---|---|
| P/E | -42.82 | 8.61 | -16.92 | -4.39 | -13.19 | -13.35 | -2.49 | -4.04 |
| P/B | 9.07 | 3.51 | 3.97 | 2.59 | 5.52 | 3.16 | 2.41 | 1.40 |
| EV/EBITDA | — | 9.34 | — | — | — | — | — | — |
| Earnings per share | -$2.04 | $4.48 | -$1.35 | -$2.48 | -$2.59 | -$1.51 | -$2.83 | -$1.67 |
| Book value per share | $9.63 | $11.00 | $5.78 | $4.20 | $6.20 | $6.38 | $2.93 | $4.82 |
| ROE | -21.17% | 40.75% | -23.45% | -59.09% | -41.85% | -23.66% | -96.53% | -34.59% |
| ROIC | -25.72% | 36.88% | -27.82% | -60.93% | -41.95% | -23.07% | — | -36.81% |
| EBITDA margin | -340.85% | 58.39% | -154.46% | -490.35% | -457.04% | -222.05% | -34,540.69% | -134.98% |
| Net margin | -282.83% | 63.34% | -131.59% | -479.26% | -458.93% | -231.07% | -33,414.29% | -125.87% |
PTGX's financial statements
| Line | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 |
|---|---|---|---|---|---|---|
| Net revenue | $46M | $434.4M | $60M | $26.6M | $27.4M | $28.6M |
| Cost of revenue | — | — | — | — | — | — |
| Gross profit | — | — | — | — | — | — |
| EBITDA | -$156.8M | $253.7M | -$92.7M | -$130.3M | -$125M | -$63.6M |
| EBIT | -$158.1M | $252.8M | -$93.7M | -$131.4M | -$125.8M | -$64.5M |
| Financial result | — | — | — | — | — | — |
| Income before tax | -$129.3M | $279.4M | -$79M | -$127.4M | -$125.6M | -$64.8M |
| Income tax | -$838K | -$4.2M | -$0 | -$0 | -$0 | -$1.3M |
| Net income | -$130.1M | $275.2M | -$79M | -$127.4M | -$125.6M | -$66.2M |
Figures the company filed with the CVM. Debt excludes leases; each quarter is that quarter alone.
Does PTGX pay dividends?
PTGX has no distributions on record.
About Protagonist Therapeutics
- Sector
- Manufacturing
Questions about PTGX
How much is PTGX today?
PTGX is at $138.69 (-1.38% on the day), last traded on 10/06/2026.
What are the P/E and P/B of PTGX?
PTGX trades at a P/E of 108.24 and a P/B of 10.66.
How much did PTGX return in 12 months?
PTGX returned 54.10% in 12 months, with annualized volatility of 33.23% and a largest drawdown of -9.11%.