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Side-by-side financial comparison of AmpliTech Group, Inc. (AMPG) and CarMax (KMX). Click either name above to swap in a different company.
CarMax is the larger business by last-quarter revenue ($5.8B vs $4.5M, roughly 1294.1× AmpliTech Group, Inc.). CarMax runs the higher net margin — 1.1% vs -71.6%, a 72.7% gap on every dollar of revenue. On growth, AmpliTech Group, Inc. posted the faster year-over-year revenue change (141.6% vs -6.9%). CarMax produced more free cash flow last quarter ($1.1B vs $-3.5M). Over the past eight quarters, AmpliTech Group, Inc.'s revenue compounded faster (39.7% CAGR vs 1.5%).
Ampli Energy is a South African company providing a renewable energy trading platform that uses a wheeling process to deliver green energy to consumers.
CarMax, Inc. is a used vehicle retailer based in the United States. It operates two business segments: CarMax Sales Operations and CarMax Auto Finance. The company began as a side business of Circuit City Corporation, Inc., opening its first location in September 1993 in Richmond, Virginia. As of January 2025, CarMax operates 253 locations.
AMPG vs KMX — Head-to-Head
Income Statement — Q4 2025 vs Q3 2026
| Metric | ||
|---|---|---|
| Revenue | $4.5M | $5.8B |
| Net Profit | $-3.2M | $62.2M |
| Gross Margin | 22.8% | 10.2% |
| Operating Margin | -73.3% | — |
| Net Margin | -71.6% | 1.1% |
| Revenue YoY | 141.6% | -6.9% |
| Net Profit YoY | 16.1% | -50.4% |
| EPS (diluted) | $-0.14 | $0.43 |
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 | $4.5M | $5.8B | ||
| Q3 25 | $6.1M | $6.6B | ||
| Q2 25 | $11.0M | $7.5B | ||
| Q1 25 | $3.6M | $6.0B | ||
| Q4 24 | $1.9M | $6.2B | ||
| Q3 24 | $2.8M | $7.0B | ||
| Q2 24 | $2.5M | $7.1B | ||
| Q1 24 | $2.3M | $5.6B |
| Q4 25 | $-3.2M | $62.2M | ||
| Q3 25 | $-188.4K | $95.4M | ||
| Q2 25 | $-1.8M | $210.4M | ||
| Q1 25 | $-1.8M | $89.9M | ||
| Q4 24 | $-3.8M | $125.4M | ||
| Q3 24 | $-1.2M | $132.8M | ||
| Q2 24 | $-1.6M | $152.4M | ||
| Q1 24 | $-4.7M | $50.3M |
| Q4 25 | 22.8% | 10.2% | ||
| Q3 25 | 48.6% | 10.9% | ||
| Q2 25 | 7.8% | 11.8% | ||
| Q1 25 | 33.0% | 11.1% | ||
| Q4 24 | 10.7% | 10.9% | ||
| Q3 24 | 47.6% | 10.8% | ||
| Q2 24 | 41.8% | 11.1% | ||
| Q1 24 | 38.5% | 10.4% |
| Q4 25 | -73.3% | — | ||
| Q3 25 | -3.6% | — | ||
| Q2 25 | -17.5% | — | ||
| Q1 25 | -52.5% | 2.0% | ||
| Q4 24 | -234.5% | 2.7% | ||
| Q3 24 | -38.4% | 2.5% | ||
| Q2 24 | -62.0% | 2.9% | ||
| Q1 24 | -62.3% | 1.2% |
| Q4 25 | -71.6% | 1.1% | ||
| Q3 25 | -3.1% | 1.4% | ||
| Q2 25 | -16.1% | 2.8% | ||
| Q1 25 | -51.1% | 1.5% | ||
| Q4 24 | -206.2% | 2.0% | ||
| Q3 24 | -42.0% | 1.9% | ||
| Q2 24 | -62.4% | 2.1% | ||
| Q1 24 | -203.0% | 0.9% |
| Q4 25 | $-0.14 | $0.43 | ||
| Q3 25 | $-0.01 | $0.64 | ||
| Q2 25 | $-0.09 | $1.38 | ||
| Q1 25 | $-0.09 | $0.58 | ||
| Q4 24 | $-0.28 | $0.81 | ||
| Q3 24 | $-0.12 | $0.85 | ||
| Q2 24 | $-0.16 | $0.97 | ||
| Q1 24 | $-0.48 | $0.31 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | ||
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $5.0M | $204.9M |
| Total DebtLower is stronger | — | $16.6B |
| Stockholders' EquityBook value | $32.9M | $6.1B |
| Total Assets | $51.5M | $25.6B |
| Debt / EquityLower = less leverage | — | 2.74× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $5.0M | $204.9M | ||
| Q3 25 | $8.4M | $540.4M | ||
| Q2 25 | $11.1M | $262.8M | ||
| Q1 25 | $16.9M | $247.0M | ||
| Q4 24 | $19.3M | $271.9M | ||
| Q3 24 | $1.1M | $524.7M | ||
| Q2 24 | $1.0M | $218.9M | ||
| Q1 24 | $2.4M | $574.1M |
| Q4 25 | — | $16.6B | ||
| Q3 25 | — | $17.8B | ||
| Q2 25 | — | $18.0B | ||
| Q1 25 | — | $18.1B | ||
| Q4 24 | — | $18.1B | ||
| Q3 24 | $1.1M | $18.1B | ||
| Q2 24 | $36.4K | $18.2B | ||
| Q1 24 | $63.2K | $18.0B |
| Q4 25 | $32.9M | $6.1B | ||
| Q3 25 | $35.8M | $6.2B | ||
| Q2 25 | $35.8M | $6.3B | ||
| Q1 25 | $35.8M | $6.2B | ||
| Q4 24 | $37.5M | $6.2B | ||
| Q3 24 | $20.4M | $6.2B | ||
| Q2 24 | $20.7M | $6.2B | ||
| Q1 24 | $22.2M | $6.1B |
| Q4 25 | $51.5M | $25.6B | ||
| Q3 25 | $47.2M | $27.1B | ||
| Q2 25 | $48.6M | $27.4B | ||
| Q1 25 | $42.1M | $27.4B | ||
| Q4 24 | $43.2M | $27.3B | ||
| Q3 24 | $27.5M | $27.3B | ||
| Q2 24 | $25.4M | $27.2B | ||
| Q1 24 | $26.9M | $27.2B |
| Q4 25 | — | 2.74× | ||
| Q3 25 | — | 2.87× | ||
| Q2 25 | — | 2.86× | ||
| Q1 25 | — | 2.91× | ||
| Q4 24 | — | 2.92× | ||
| Q3 24 | 0.06× | 2.93× | ||
| Q2 24 | 0.00× | 2.95× | ||
| Q1 24 | 0.00× | 2.96× |
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 | $-3.4M | $1.3B |
| Free Cash FlowOCF − Capex | $-3.5M | $1.1B |
| FCF MarginFCF / Revenue | -78.4% | 19.2% |
| Capex IntensityCapex / Revenue | 1.9% | 2.4% |
| Cash ConversionOCF / Net Profit | — | 20.14× |
| TTM Free Cash FlowTrailing 4 quarters | $-9.7M | $1.9B |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $-3.4M | $1.3B | ||
| Q3 25 | $-999.4K | $785.5M | ||
| Q2 25 | $-2.3M | $299.5M | ||
| Q1 25 | $-2.0M | $146.4M | ||
| Q4 24 | $-1.2M | $-23.4M | ||
| Q3 24 | $-1.7M | $619.1M | ||
| Q2 24 | $-1.3M | $-117.7M | ||
| Q1 24 | $-1.1M | $309.6M |
| Q4 25 | $-3.5M | $1.1B | ||
| Q3 25 | $-1.4M | $654.0M | ||
| Q2 25 | $-2.4M | $162.8M | ||
| Q1 25 | $-2.4M | $18.8M | ||
| Q4 24 | $-1.2M | $-150.6M | ||
| Q3 24 | $-1.7M | $509.9M | ||
| Q2 24 | $-1.3M | $-221.6M | ||
| Q1 24 | $-1.1M | $199.8M |
| Q4 25 | -78.4% | 19.2% | ||
| Q3 25 | -23.7% | 9.9% | ||
| Q2 25 | -21.6% | 2.2% | ||
| Q1 25 | -65.8% | 0.3% | ||
| Q4 24 | -63.9% | -2.4% | ||
| Q3 24 | -61.6% | 7.3% | ||
| Q2 24 | -52.7% | -3.1% | ||
| Q1 24 | -47.0% | 3.6% |
| Q4 25 | 1.9% | 2.4% | ||
| Q3 25 | 7.3% | 2.0% | ||
| Q2 25 | 1.1% | 1.8% | ||
| Q1 25 | 10.0% | 2.1% | ||
| Q4 24 | 0.9% | 2.0% | ||
| Q3 24 | 0.4% | 1.6% | ||
| Q2 24 | 0.5% | 1.5% | ||
| Q1 24 | 0.1% | 2.0% |
| Q4 25 | — | 20.14× | ||
| Q3 25 | — | 8.24× | ||
| Q2 25 | — | 1.42× | ||
| Q1 25 | — | 1.63× | ||
| Q4 24 | — | -0.19× | ||
| Q3 24 | — | 4.66× | ||
| Q2 24 | — | -0.77× | ||
| Q1 24 | — | 6.16× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
AMPG
Segment breakdown not available.
KMX
| Used Vehicles | $4.5B | 78% |
| Wholesale Vehicles | $1.1B | 19% |
| Other | $150.6M | 3% |
| Extendedprotectionplan Domain | $96.6M | 2% |
| Advertising Subscription Revenues Domain | $35.1M | 1% |
| Service Domain | $18.5M | 0% |
| Thirdpartyfinancefees Domain | $3.0M | 0% |