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Side-by-side financial comparison of GLAUKOS Corp (GKOS) and PLUG POWER INC (PLUG). Click either name above to swap in a different company.
PLUG POWER INC is the larger business by last-quarter revenue ($225.2M vs $150.6M, roughly 1.5× GLAUKOS Corp). GLAUKOS Corp runs the higher net margin — 6.2% vs -375.6%, a 381.8% gap on every dollar of revenue. On growth, GLAUKOS Corp posted the faster year-over-year revenue change (41.2% vs 17.6%). Over the past eight quarters, PLUG POWER INC's revenue compounded faster (36.8% CAGR vs 25.4%).
Glaukos Corp is a medical technology company focused on ophthalmology, developing and commercializing minimally invasive surgical devices, prescription pharmaceuticals and consumer products for glaucoma, corneal diseases and other eye disorders. It operates primarily across North America, Europe and Asia Pacific, serving hospitals, ophthalmology clinics and patients worldwide.
Plug Power Inc. is an American company engaged in the development of hydrogen fuel cell and electrolyzer systems that replace conventional batteries in equipment and vehicles powered by electricity. The company is headquartered in Slingerlands, New York, and has facilities in Spokane, Washington, and Rochester, New York.
GKOS vs PLUG — Head-to-Head
Income Statement — Q1 FY2026 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $150.6M | $225.2M |
| Net Profit | $9.4M | $-846.0M |
| Gross Margin | 77.9% | 2.4% |
| Operating Margin | 9.0% | -338.9% |
| Net Margin | 6.2% | -375.6% |
| Revenue YoY | 41.2% | 17.6% |
| Net Profit YoY | — | 36.7% |
| EPS (diluted) | — | $-0.70 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q1 26 | $150.6M | — | ||
| Q4 25 | $143.1M | $225.2M | ||
| Q3 25 | $133.5M | $177.1M | ||
| Q2 25 | $124.1M | $174.0M | ||
| Q1 25 | $106.7M | $133.7M | ||
| Q4 24 | $105.5M | $191.5M | ||
| Q3 24 | $96.7M | $173.7M | ||
| Q2 24 | $95.7M | $143.3M |
| Q1 26 | $9.4M | — | ||
| Q4 25 | $-133.7M | $-846.0M | ||
| Q3 25 | $-16.2M | $-361.9M | ||
| Q2 25 | $-19.7M | $-227.1M | ||
| Q1 25 | $-18.1M | $-196.7M | ||
| Q4 24 | $-33.6M | $-1.3B | ||
| Q3 24 | $-21.4M | $-211.2M | ||
| Q2 24 | $-50.5M | $-262.3M |
| Q1 26 | 77.9% | — | ||
| Q4 25 | -1.1% | 2.4% | ||
| Q3 25 | 78.4% | -67.9% | ||
| Q2 25 | 78.3% | -30.7% | ||
| Q1 25 | 77.2% | -55.3% | ||
| Q4 24 | 72.9% | -122.5% | ||
| Q3 24 | 76.6% | -57.6% | ||
| Q2 24 | 76.4% | -91.6% |
| Q1 26 | 9.0% | — | ||
| Q4 25 | -97.7% | -338.9% | ||
| Q3 25 | -12.3% | -197.0% | ||
| Q2 25 | -18.3% | -101.7% | ||
| Q1 25 | -19.4% | -133.5% | ||
| Q4 24 | -27.2% | -678.7% | ||
| Q3 24 | -25.5% | -124.4% | ||
| Q2 24 | -31.3% | -170.7% |
| Q1 26 | 6.2% | — | ||
| Q4 25 | -93.4% | -375.6% | ||
| Q3 25 | -12.2% | -204.4% | ||
| Q2 25 | -15.8% | -130.5% | ||
| Q1 25 | -17.0% | -147.1% | ||
| Q4 24 | -31.8% | -697.5% | ||
| Q3 24 | -22.1% | -121.5% | ||
| Q2 24 | -52.8% | -183.0% |
| Q1 26 | — | — | ||
| Q4 25 | $-2.34 | $-0.70 | ||
| Q3 25 | $-0.28 | $-0.31 | ||
| Q2 25 | $-0.34 | $-0.20 | ||
| Q1 25 | $-0.32 | $-0.21 | ||
| Q4 24 | $-0.56 | $-1.61 | ||
| Q3 24 | $-0.39 | $-0.25 | ||
| Q2 24 | $-1.00 | $-0.36 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $276.7M | $368.5M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $670.9M | $978.1M |
| Total Assets | $893.3M | $2.6B |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | $276.7M | — | ||
| Q4 25 | $90.8M | $368.5M | ||
| Q3 25 | $98.2M | $165.9M | ||
| Q2 25 | $100.8M | $140.7M | ||
| Q1 25 | $114.3M | $295.8M | ||
| Q4 24 | $169.6M | $205.7M | ||
| Q3 24 | $100.1M | $93.9M | ||
| Q2 24 | $68.1M | $62.4M |
| Q1 26 | — | — | ||
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | $3.9M | ||
| Q2 24 | — | $3.7M |
| Q1 26 | $670.9M | — | ||
| Q4 25 | $656.2M | $978.1M | ||
| Q3 25 | $769.5M | $1.4B | ||
| Q2 25 | $765.1M | $1.7B | ||
| Q1 25 | $764.0M | $1.9B | ||
| Q4 24 | $766.9M | $1.7B | ||
| Q3 24 | $668.5M | $3.0B | ||
| Q2 24 | $665.2M | $3.0B |
| Q1 26 | $893.3M | — | ||
| Q4 25 | $893.5M | $2.6B | ||
| Q3 25 | $999.4M | $3.1B | ||
| Q2 25 | $987.0M | $3.4B | ||
| Q1 25 | $966.2M | $3.6B | ||
| Q4 24 | $974.8M | $3.6B | ||
| Q3 24 | $926.5M | $4.7B | ||
| Q2 24 | $919.7M | $4.8B |
| Q1 26 | — | — | ||
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | 0.00× | ||
| Q2 24 | — | 0.00× |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | — | $-148.6M |
| Free Cash FlowOCF − Capex | — | $-153.0M |
| FCF MarginFCF / Revenue | — | -67.9% |
| Capex IntensityCapex / Revenue | — | 1.9% |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | — | $-647.0M |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $6.8M | $-148.6M | ||
| Q3 25 | $-10.1M | $-89.8M | ||
| Q2 25 | $7.0M | $-191.8M | ||
| Q1 25 | $-18.5M | $-105.6M | ||
| Q4 24 | $507.0K | $-131.2M | ||
| Q3 24 | $-9.6M | $-174.9M | ||
| Q2 24 | $-18.4M | $-254.7M |
| Q1 26 | — | — | ||
| Q4 25 | $3.9M | $-153.0M | ||
| Q3 25 | $-11.7M | $-117.5M | ||
| Q2 25 | $5.8M | $-230.4M | ||
| Q1 25 | $-20.5M | $-146.0M | ||
| Q4 24 | $-1.2M | $-165.2M | ||
| Q3 24 | $-11.0M | $-234.2M | ||
| Q2 24 | $-20.5M | $-356.0M |
| Q1 26 | — | — | ||
| Q4 25 | 2.7% | -67.9% | ||
| Q3 25 | -8.8% | -66.4% | ||
| Q2 25 | 4.7% | -132.5% | ||
| Q1 25 | -19.2% | -109.2% | ||
| Q4 24 | -1.2% | -86.3% | ||
| Q3 24 | -11.4% | -134.8% | ||
| Q2 24 | -21.4% | -248.4% |
| Q1 26 | — | — | ||
| Q4 25 | 2.0% | 1.9% | ||
| Q3 25 | 1.2% | 15.6% | ||
| Q2 25 | 0.9% | 22.2% | ||
| Q1 25 | 1.8% | 30.3% | ||
| Q4 24 | 1.6% | 17.7% | ||
| Q3 24 | 1.5% | 34.1% | ||
| Q2 24 | 2.2% | 70.7% |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
GKOS
Segment breakdown not available.
PLUG
| Sales Of Equipment And Related Infrastructure | $111.6M | 50% |
| Services Performed On Fuel Cell Systems And Related Infrastructure | $41.5M | 18% |
| Power Purchase Agreements | $36.1M | 16% |
| Sale Of Cryogenic Equipment | $20.0M | 9% |
| Sales Of Fuel Cell Systems | $11.2M | 5% |
| Other | $4.8M | 2% |
