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Side-by-side financial comparison of RING ENERGY, INC. (REI) and STEM, INC. (STEM). Click either name above to swap in a different company.
RING ENERGY, INC. is the larger business by last-quarter revenue ($66.9M vs $47.1M, roughly 1.4× STEM, INC.). On growth, STEM, INC. posted the faster year-over-year revenue change (-15.6% vs -19.8%). Over the past eight quarters, STEM, INC.'s revenue compounded faster (36.1% CAGR vs -15.9%).
Siemens Energy AG is a German publicly traded energy corporation formed through the spin-off of the former Gas and Power division of Siemens, and it includes full ownership of Siemens Gamesa.
StemCells, Inc. is a public biopharmaceutical company headquartered in Newark, California, that is developing purified human neural stem cells (HuCNS-SCs) in the hopes of treating central nervous system disorders and paralysis. StemCells' HuCNS-SCs have the ability to differentiate into the three main types of cells found in the central nervous system: neurons, astrocytes and oligodendrocytes.
REI vs STEM — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $66.9M | $47.1M |
| Net Profit | — | $-16.0M |
| Gross Margin | — | 48.9% |
| Operating Margin | -37.6% | -17.7% |
| Net Margin | — | -33.9% |
| Revenue YoY | -19.8% | -15.6% |
| Net Profit YoY | — | 68.8% |
| EPS (diluted) | $-0.07 | $-4.40 |
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.
| Q4 25 | $66.9M | $47.1M | ||
| Q3 25 | $78.6M | $38.2M | ||
| Q2 25 | $82.6M | $38.4M | ||
| Q1 25 | $79.1M | $32.5M | ||
| Q4 24 | $83.4M | $55.8M | ||
| Q3 24 | $89.2M | $29.3M | ||
| Q2 24 | $99.1M | $34.0M | ||
| Q1 24 | $94.5M | $25.5M |
| Q4 25 | — | $-16.0M | ||
| Q3 25 | $-51.6M | $-23.8M | ||
| Q2 25 | $20.6M | $202.5M | ||
| Q1 25 | $9.1M | $-25.0M | ||
| Q4 24 | — | $-51.1M | ||
| Q3 24 | $33.9M | $-148.3M | ||
| Q2 24 | $22.4M | $-582.3M | ||
| Q1 24 | $5.5M | $-72.3M |
| Q4 25 | — | 48.9% | ||
| Q3 25 | — | 35.5% | ||
| Q2 25 | — | 33.4% | ||
| Q1 25 | — | 32.4% | ||
| Q4 24 | — | -4.4% | ||
| Q3 24 | — | 21.2% | ||
| Q2 24 | — | 27.6% | ||
| Q1 24 | — | -95.0% |
| Q4 25 | -37.6% | -17.7% | ||
| Q3 25 | -70.0% | -33.6% | ||
| Q2 25 | 28.4% | -34.8% | ||
| Q1 25 | 28.3% | -65.0% | ||
| Q4 24 | 28.3% | -84.4% | ||
| Q3 24 | 33.4% | -493.2% | ||
| Q2 24 | 42.2% | -1705.5% | ||
| Q1 24 | 39.8% | -267.0% |
| Q4 25 | — | -33.9% | ||
| Q3 25 | -65.7% | -62.2% | ||
| Q2 25 | 25.0% | 527.8% | ||
| Q1 25 | 11.5% | -76.9% | ||
| Q4 24 | — | -91.6% | ||
| Q3 24 | 38.0% | -506.3% | ||
| Q2 24 | 22.6% | -1712.6% | ||
| Q1 24 | 5.8% | -283.9% |
| Q4 25 | $-0.07 | $-4.40 | ||
| Q3 25 | $-0.25 | $-2.84 | ||
| Q2 25 | $0.10 | $-1.79 | ||
| Q1 25 | $0.05 | $-0.15 | ||
| Q4 24 | $0.03 | $-15.29 | ||
| Q3 24 | $0.17 | $-18.24 | ||
| Q2 24 | $0.11 | $-71.81 | ||
| Q1 24 | $0.03 | $-0.46 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $902.9K | $48.9M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $836.3M | $-249.4M |
| Total Assets | $1.4B | $308.9M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $902.9K | $48.9M | ||
| Q3 25 | $286.9K | $43.1M | ||
| Q2 25 | — | $40.8M | ||
| Q1 25 | $1.1M | $58.6M | ||
| Q4 24 | $1.9M | $56.3M | ||
| Q3 24 | — | $75.4M | ||
| Q2 24 | $1.2M | $89.6M | ||
| Q1 24 | $1.4M | $112.8M |
| Q4 25 | $836.3M | $-249.4M | ||
| Q3 25 | $847.7M | $-235.7M | ||
| Q2 25 | $897.9M | $-214.1M | ||
| Q1 25 | $876.0M | $-417.5M | ||
| Q4 24 | $858.6M | $-398.4M | ||
| Q3 24 | $851.3M | $-344.1M | ||
| Q2 24 | $817.4M | $-203.2M | ||
| Q1 24 | $793.0M | $371.6M |
| Q4 25 | $1.4B | $308.9M | ||
| Q3 25 | $1.4B | $362.6M | ||
| Q2 25 | $1.5B | $379.2M | ||
| Q1 25 | $1.5B | $405.1M | ||
| Q4 24 | $1.4B | $437.4M | ||
| Q3 24 | $1.4B | $537.8M | ||
| Q2 24 | $1.4B | $691.5M | ||
| Q1 24 | $1.4B | $1.3B |
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 | $44.7M | $8.2M |
| Free Cash FlowOCF − Capex | — | — |
| FCF MarginFCF / Revenue | — | — |
| Capex IntensityCapex / Revenue | — | — |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $44.7M | $8.2M | ||
| Q3 25 | $44.5M | $11.4M | ||
| Q2 25 | $33.3M | $-21.3M | ||
| Q1 25 | $28.4M | $8.5M | ||
| Q4 24 | $47.3M | $-14.7M | ||
| Q3 24 | $51.3M | $-9.4M | ||
| Q2 24 | $50.6M | $-11.9M | ||
| Q1 24 | $45.2M | $-621.0K |
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | 1.61× | -0.11× | ||
| Q1 25 | 3.11× | — | ||
| Q4 24 | — | — | ||
| Q3 24 | 1.52× | — | ||
| Q2 24 | 2.26× | — | ||
| Q1 24 | 8.19× | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
