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EnerSys vs Protagonist Therapeutics, Inc — Side-by-side quantitative comparison
Based on our 6-factor quantitative model, EnerSys (ENS) is the stronger stock with a composite score of 65.8/100 and a Buy rating, compared to Protagonist Therapeutics, Inc (PTGX) at 51.4/100 (Hold). ENS ranks #251 in our universe versus #1797 for PTGX, giving it an edge of 14.4 points across quality, value, momentum, investment, stability, and short interest factors.
For the Quality factor — which measures profitability and business quality through metrics like ROE, gross margins, and capital efficiency — ENS leads at 61/100, while PTGX trails at 38/100 (ENS: 61/100, PTGX: 38/100). The 23-point gap indicates a meaningful difference in quality characteristics between these stocks.
For the Value factor — which evaluates whether a stock is cheap or expensive relative to its earnings, book value, and cash flows — ENS leads at 76/100, while PTGX trails at 47/100 (ENS: 76/100, PTGX: 47/100). The 29-point gap indicates a meaningful difference in value characteristics between these stocks.
On the Momentum factor, which captures price trends and institutional sentiment over the trailing 3-12 months, these stocks are closely matched (ENS: 79/100, PTGX: 75/100). The narrow 5-point spread suggests similar momentum profiles, so this factor alone is unlikely to be a decisive differentiator.
On the Investment factor, which assesses capital allocation quality including reinvestment rates and asset growth, these stocks are closely matched (PTGX: 49/100, ENS: 44/100). The narrow 5-point spread suggests similar investment profiles, so this factor alone is unlikely to be a decisive differentiator.
For the Stability factor — which measures financial health through leverage ratios and price volatility — PTGX leads at 71/100, while ENS trails at 66/100 (PTGX: 71/100, ENS: 66/100). The 6-point gap indicates a meaningful difference in stability characteristics between these stocks.
For the Short Interest factor — which tracks institutional bearish positioning and potential risk from elevated short selling — ENS leads at 77/100, while PTGX trails at 29/100 (ENS: 77/100, PTGX: 29/100). The 48-point gap indicates a meaningful difference in short interest characteristics between these stocks.
Based on our 6-factor model, EnerSys (ENS) is utilizing a stronger overall profile than PTGX, with a Composite Score of 66 vs 51. ENS holds a moderate edge, particularly in Short Interest and Value, though both stocks have merits.
| Overall Rating | ||
| Composite Score | 66 | 51 |
| Rank | #251 | #1,797 |
| Stars | 4 / 5 | 3 / 5 |
| Action | Buy | Hold |
| Factor Scores | ||
| Quality | 61 | 38 |
| Value | 76 | 47 |
| Momentum | 79 | 75 |
| Stability | 66 | 71 |
| Investment | 44 | 49 |
| Short Interest | 77 | 29 |
| Valuation | ||
| P/E Ratio | 15.28 | — |
| P/B Ratio | 2.24 | 6.40 |
| P/S Ratio | 1.10 | 219.26 |
| EV/EBITDA | 8.91 | — |
| Dividend Yield | 0.9% | 0.0% |
| Profitability | ||
| ROE | 16.6% | 7.8% |
| ROA | 6.7% | -267.6% |
| Gross Margin | 29.1% | 100.0% |
| Operating Margin | 9.7% | -985.2% |
| Net Margin | 7.2% | -834.9% |
| Growth & Risk | ||
| Revenue Growth | 7.6% | 0.8% |
| Debt/Equity | 65.00 | 0.00 |
| Beta | 1.23 | -0.10 |
| Market | ||
| Market Cap | $4.18B | $4.13B |
Based on our 6-factor quantitative model, ENS currently has the higher composite score (65.8/100, Buy) and ranks #251 in our universe. However, the "better" stock depends on your investment goals, risk tolerance, and time horizon. We recommend reviewing the full factor breakdown above before making a decision.
Our comparison analyzes six quantitative factors: Quality (profitability and business strength, 30% weight), Momentum (price trends, 25%), Value (valuation attractiveness, 15%), Investment (capital allocation, 10%), Stability (financial health, 10%), and Short Interest (institutional positioning, 10%). Each factor is scored 0-100 and combined into a composite score.
ENS has the higher value score at 76/100 compared to PTGX at 47/100. A higher value score indicates the stock trades at a more attractive valuation relative to its earnings, book value, and cash flows.
Our stock rankings and comparisons are updated daily using the latest available market data, financial statements, and price information. Factor scores reflect the most recent quarterly filings and trailing price data.