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Side-by-side financial comparison of SHOULDER INNOVATIONS, INC. (SI) and STAK Inc. (STAK). Click either name above to swap in a different company.
STAK Inc. is the larger business by last-quarter revenue ($13.6M vs $11.8M, roughly 1.2× SHOULDER INNOVATIONS, INC.). STAK Inc. runs the higher net margin — 11.9% vs -74.3%, a 86.1% gap on every dollar of revenue. STAK Inc. produced more free cash flow last quarter ($-1.0M vs $-11.4M).
Shoulder Innovations, Inc. is a medical technology firm specializing in design, development, and commercialization of innovative orthopedic devices for shoulder replacement surgery. Its products reduce surgical complications, improve patient outcomes, and are sold to orthopedic surgeons and healthcare providers across North America and Western Europe.
SI vs STAK — Head-to-Head
Income Statement — Q3 FY2025 vs Q4 FY2024
| Metric | | |
|---|---|---|
| Revenue | $11.8M | $13.6M |
| Net Profit | $-8.7M | $1.6M |
| Gross Margin | 76.2% | 28.5% |
| Operating Margin | -65.0% | 13.6% |
| Net Margin | -74.3% | 11.9% |
| Revenue YoY | — | — |
| Net Profit YoY | — | — |
| EPS (diluted) | $-0.64 | — |
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.
| Q3 25 | $11.8M | — | ||
| Q2 25 | $11.0M | — | ||
| Q4 24 | — | $13.6M |
| Q3 25 | $-8.7M | — | ||
| Q2 25 | $-19.2M | — | ||
| Q4 24 | — | $1.6M |
| Q3 25 | 76.2% | — | ||
| Q2 25 | 76.2% | — | ||
| Q4 24 | — | 28.5% |
| Q3 25 | -65.0% | — | ||
| Q2 25 | -53.2% | — | ||
| Q4 24 | — | 13.6% |
| Q3 25 | -74.3% | — | ||
| Q2 25 | -174.3% | — | ||
| Q4 24 | — | 11.9% |
| Q3 25 | $-0.64 | — | ||
| Q2 25 | $-165.53 | — | ||
| Q4 24 | — | — |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $54.9M | $658.2K |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $147.8M | $10.6M |
| Total Assets | $177.8M | $18.8M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q3 25 | $54.9M | — | ||
| Q2 25 | $27.1M | — | ||
| Q4 24 | — | $658.2K |
| Q3 25 | $147.8M | — | ||
| Q2 25 | $-78.2M | — | ||
| Q4 24 | — | $10.6M |
| Q3 25 | $177.8M | — | ||
| Q2 25 | $77.8M | — | ||
| Q4 24 | — | $18.8M |
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 | $-8.6M | $-998.6K |
| Free Cash FlowOCF − Capex | $-11.4M | $-1.0M |
| FCF MarginFCF / Revenue | -96.7% | -7.4% |
| Capex IntensityCapex / Revenue | 23.9% | 0.0% |
| Cash ConversionOCF / Net Profit | — | -0.62× |
| TTM Free Cash FlowTrailing 4 quarters | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q3 25 | $-8.6M | — | ||
| Q2 25 | $-11.3M | — | ||
| Q4 24 | — | $-998.6K |
| Q3 25 | $-11.4M | — | ||
| Q2 25 | $-13.6M | — | ||
| Q4 24 | — | $-1.0M |
| Q3 25 | -96.7% | — | ||
| Q2 25 | -123.4% | — | ||
| Q4 24 | — | -7.4% |
| Q3 25 | 23.9% | — | ||
| Q2 25 | 21.0% | — | ||
| Q4 24 | — | 0.0% |
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q4 24 | — | -0.62× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
SI
Segment breakdown not available.
STAK
| Other | $4.2M | 31% |
| Sales of specialized oilfield equipment | $4.0M | 30% |
| Total | $3.3M | 24% |
| Sales of specialized oilfield vehicle | $2.1M | 15% |
| Service income from automation solutions | $26.4K | 0% |
