vs
Side-by-side financial comparison of i-80 Gold Corp. (IAUX) and Spero Therapeutics, Inc. (SPRO). Click either name above to swap in a different company.
i-80 Gold Corp. is the larger business by last-quarter revenue ($21.3M vs $12.6M, roughly 1.7× Spero Therapeutics, Inc.). Spero Therapeutics, Inc. runs the higher net margin — 250.7% vs -401.9%, a 652.6% gap on every dollar of revenue.
i-80 Gold Corp is a mineral exploration and development firm focused on gold and silver asset operations in Nevada, US. It advances high-potential mining projects, using responsible extraction practices to deliver precious metals to global industrial and investment markets.
IAUX vs SPRO — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $21.3M | $12.6M |
| Net Profit | $-85.6M | $31.5M |
| Gross Margin | 22.0% | — |
| Operating Margin | -291.6% | — |
| Net Margin | -401.9% | 250.7% |
| Revenue YoY | — | 24080.8% |
| Net Profit YoY | — | 250.9% |
| EPS (diluted) | $-0.10 | $0.56 |
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 | $21.3M | $12.6M | ||
| Q3 25 | $32.0M | $0 | ||
| Q2 25 | $27.8M | $0 | ||
| Q1 25 | $14.0M | $12.0K | ||
| Q4 24 | — | $52.0K | ||
| Q3 24 | $11.5M | $65.0K | ||
| Q2 24 | $7.2M | $114.0K | ||
| Q1 24 | — | $140.0K |
| Q4 25 | $-85.6M | $31.5M | ||
| Q3 25 | $-41.9M | $-7.4M | ||
| Q2 25 | $-30.2M | $-1.7M | ||
| Q1 25 | $-41.2M | $-13.9M | ||
| Q4 24 | — | — | ||
| Q3 24 | $-43.1M | $-17.1M | ||
| Q2 24 | $-41.0M | $-17.9M | ||
| Q1 24 | — | $-12.7M |
| Q4 25 | 22.0% | — | ||
| Q3 25 | 9.7% | — | ||
| Q2 25 | 2.9% | — | ||
| Q1 25 | 20.7% | — | ||
| Q4 24 | — | — | ||
| Q3 24 | -42.7% | — | ||
| Q2 24 | -171.4% | — | ||
| Q1 24 | — | — |
| Q4 25 | -291.6% | — | ||
| Q3 25 | -86.7% | — | ||
| Q2 25 | -67.4% | — | ||
| Q1 25 | -112.3% | -122758.3% | ||
| Q4 24 | — | — | ||
| Q3 24 | -210.0% | -28604.6% | ||
| Q2 24 | -435.2% | -16720.2% | ||
| Q1 24 | — | -9987.1% |
| Q4 25 | -401.9% | 250.7% | ||
| Q3 25 | -130.8% | — | ||
| Q2 25 | -108.5% | — | ||
| Q1 25 | -293.3% | -115550.0% | ||
| Q4 24 | — | — | ||
| Q3 24 | -374.5% | -26380.0% | ||
| Q2 24 | -570.8% | -15668.4% | ||
| Q1 24 | — | -9049.3% |
| Q4 25 | $-0.10 | $0.56 | ||
| Q3 25 | $-0.05 | $-0.13 | ||
| Q2 25 | $-0.05 | $-0.03 | ||
| Q1 25 | $-0.10 | $-0.25 | ||
| Q4 24 | — | — | ||
| Q3 24 | $-0.11 | $-0.32 | ||
| Q2 24 | $-0.11 | $-0.33 | ||
| Q1 24 | — | $-0.24 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $63.2M | $40.3M |
| Total DebtLower is stronger | $174.7M | — |
| Stockholders' EquityBook value | $346.8M | $59.0M |
| Total Assets | $703.4M | $68.9M |
| Debt / EquityLower = less leverage | 0.50× | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $63.2M | $40.3M | ||
| Q3 25 | $102.9M | $48.6M | ||
| Q2 25 | $133.7M | $31.2M | ||
| Q1 25 | $13.5M | $48.9M | ||
| Q4 24 | — | $52.9M | ||
| Q3 24 | $21.8M | $76.3M | ||
| Q2 24 | $47.8M | $63.5M | ||
| Q1 24 | — | $82.3M |
| Q4 25 | $174.7M | — | ||
| Q3 25 | $175.9M | — | ||
| Q2 25 | $175.8M | — | ||
| Q1 25 | $197.5M | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | $346.8M | $59.0M | ||
| Q3 25 | $423.0M | $26.5M | ||
| Q2 25 | $463.5M | $32.8M | ||
| Q1 25 | $318.0M | $33.8M | ||
| Q4 24 | — | $46.1M | ||
| Q3 24 | $346.9M | $65.5M | ||
| Q2 24 | $377.2M | $80.5M | ||
| Q1 24 | — | $96.2M |
| Q4 25 | $703.4M | $68.9M | ||
| Q3 25 | $756.2M | $54.2M | ||
| Q2 25 | $782.9M | $62.1M | ||
| Q1 25 | $659.0M | $77.7M | ||
| Q4 24 | — | $110.5M | ||
| Q3 24 | — | $135.2M | ||
| Q2 24 | — | $149.9M | ||
| Q1 24 | — | $167.7M |
| Q4 25 | 0.50× | — | ||
| Q3 25 | 0.42× | — | ||
| Q2 25 | 0.38× | — | ||
| Q1 25 | 0.62× | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
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 | $-34.3M | $-8.4M |
| Free Cash FlowOCF − Capex | $-39.2M | — |
| FCF MarginFCF / Revenue | -184.3% | — |
| Capex IntensityCapex / Revenue | 23.1% | — |
| Cash ConversionOCF / Net Profit | — | -0.26× |
| TTM Free Cash FlowTrailing 4 quarters | $-93.2M | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-34.3M | $-8.4M | ||
| Q3 25 | $-15.2M | $17.4M | ||
| Q2 25 | $-11.3M | $-17.7M | ||
| Q1 25 | $-22.7M | $-4.0M | ||
| Q4 24 | — | $-23.4M | ||
| Q3 24 | $-23.5M | $12.8M | ||
| Q2 24 | $-24.6M | $-18.7M | ||
| Q1 24 | — | $5.9M |
| Q4 25 | $-39.2M | — | ||
| Q3 25 | $-18.5M | — | ||
| Q2 25 | $-12.4M | — | ||
| Q1 25 | $-23.1M | — | ||
| Q4 24 | — | — | ||
| Q3 24 | $-23.8M | — | ||
| Q2 24 | $-25.1M | — | ||
| Q1 24 | — | — |
| Q4 25 | -184.3% | — | ||
| Q3 25 | -57.8% | — | ||
| Q2 25 | -44.7% | — | ||
| Q1 25 | -164.1% | — | ||
| Q4 24 | — | — | ||
| Q3 24 | -206.7% | — | ||
| Q2 24 | -349.1% | — | ||
| Q1 24 | — | — |
| Q4 25 | 23.1% | — | ||
| Q3 25 | 10.2% | — | ||
| Q2 25 | 3.9% | — | ||
| Q1 25 | 2.5% | — | ||
| Q4 24 | — | — | ||
| Q3 24 | 2.5% | — | ||
| Q2 24 | 7.3% | — | ||
| Q1 24 | — | — |
| Q4 25 | — | -0.26× | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
IAUX
| Granite Creek Mining Company | $20.3M | 95% |
| Ruby Hill Mining Company LLC | $991.0K | 5% |
| Lone Tree Minning Company | $3.0K | 0% |
SPRO
Segment breakdown not available.
