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Side-by-side financial comparison of AMBARELLA INC (AMBA) and CALIFORNIA WATER SERVICE GROUP (CWT). Click either name above to swap in a different company.
CALIFORNIA WATER SERVICE GROUP is the larger business by last-quarter revenue ($210.7M vs $108.5M, roughly 1.9× AMBARELLA INC). CALIFORNIA WATER SERVICE GROUP runs the higher net margin — 5.4% vs -13.9%, a 19.4% gap on every dollar of revenue. On growth, AMBARELLA INC posted the faster year-over-year revenue change (31.2% vs -3.3%). Over the past eight quarters, AMBARELLA INC's revenue compounded faster (45.0% CAGR vs 16.6%).
Ambarella, Inc. is an American fabless semiconductor design company, focusing on low-power, high-definition (HD) and Ultra HD video compression, image processing, and computer vision processors. Ambarella's products are used in a wide variety of human and computer vision applications, including video security, advanced driver assistance systems (ADAS), electronic mirror, drive recorder, driver and in-cabin monitoring, autonomous driving, and robotics applications. Ambarella's system on chips ...
California Water Service Group (CWSG) is an American public utility company providing drinking water and wastewater services. It is the third-largest investor-owned publicly traded water utility in the United States, serving roughly two million people through its subsidiary companies in California, Hawaii, New Mexico and Washington. CWSG was formed in 1997 as a new holding company for California Water Service to expand into other states regulated by their own public utilities commissions, and...
AMBA vs CWT — Head-to-Head
Income Statement — Q3 FY2026 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $108.5M | $210.7M |
| Net Profit | $-15.1M | $11.5M |
| Gross Margin | 59.6% | — |
| Operating Margin | -15.0% | 12.2% |
| Net Margin | -13.9% | 5.4% |
| Revenue YoY | 31.2% | -3.3% |
| Net Profit YoY | 37.2% | -41.0% |
| EPS (diluted) | $-0.35 | $0.19 |
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 | $108.5M | $210.7M | ||
| Q3 25 | $95.5M | $314.1M | ||
| Q2 25 | $85.9M | $256.2M | ||
| Q1 25 | $84.0M | $182.7M | ||
| Q4 24 | $82.7M | $217.8M | ||
| Q3 24 | $63.7M | $306.2M | ||
| Q2 24 | $54.5M | $226.7M | ||
| Q1 24 | $51.6M | $154.9M |
| Q4 25 | $-15.1M | $11.5M | ||
| Q3 25 | $-20.0M | $61.2M | ||
| Q2 25 | $-24.3M | $42.2M | ||
| Q1 25 | $-20.2M | $13.3M | ||
| Q4 24 | $-24.1M | $19.5M | ||
| Q3 24 | $-34.9M | $60.7M | ||
| Q2 24 | $-37.9M | $40.6M | ||
| Q1 24 | $-60.6M | $69.9M |
| Q4 25 | 59.6% | — | ||
| Q3 25 | 58.9% | — | ||
| Q2 25 | 60.0% | — | ||
| Q1 25 | 60.0% | — | ||
| Q4 24 | 60.6% | — | ||
| Q3 24 | 60.8% | — | ||
| Q2 24 | 60.9% | — | ||
| Q1 24 | 59.8% | — |
| Q4 25 | -15.0% | 12.2% | ||
| Q3 25 | -23.0% | 22.5% | ||
| Q2 25 | -30.1% | 20.2% | ||
| Q1 25 | -30.2% | 12.2% | ||
| Q4 24 | -30.9% | 14.8% | ||
| Q3 24 | -56.9% | 21.8% | ||
| Q2 24 | -72.4% | 21.2% | ||
| Q1 24 | -80.8% | 50.3% |
| Q4 25 | -13.9% | 5.4% | ||
| Q3 25 | -20.9% | 19.5% | ||
| Q2 25 | -28.3% | 16.5% | ||
| Q1 25 | -24.1% | 7.3% | ||
| Q4 24 | -29.1% | 8.9% | ||
| Q3 24 | -54.8% | 19.8% | ||
| Q2 24 | -69.6% | 17.9% | ||
| Q1 24 | -117.4% | 45.1% |
| Q4 25 | $-0.35 | $0.19 | ||
| Q3 25 | $-0.47 | $1.03 | ||
| Q2 25 | $-0.58 | $0.71 | ||
| Q1 25 | $-0.48 | $0.22 | ||
| Q4 24 | $-0.58 | $0.31 | ||
| Q3 24 | $-0.85 | $1.03 | ||
| Q2 24 | $-0.93 | $0.70 | ||
| Q1 24 | $-1.51 | $1.21 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $174.1M | $51.8M |
| Total DebtLower is stronger | — | $1.5B |
| Stockholders' EquityBook value | $590.1M | $1.7B |
| Total Assets | $751.9M | $5.7B |
| Debt / EquityLower = less leverage | — | 0.87× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $174.1M | $51.8M | ||
| Q3 25 | $142.7M | $76.0M | ||
| Q2 25 | $141.3M | $50.5M | ||
| Q1 25 | $144.6M | $44.5M | ||
| Q4 24 | $127.1M | $50.1M | ||
| Q3 24 | $153.9M | $59.6M | ||
| Q2 24 | $131.8M | $37.3M | ||
| Q1 24 | $144.9M | $42.8M |
| Q4 25 | — | $1.5B | ||
| Q3 25 | — | $1.1B | ||
| Q2 25 | — | $1.1B | ||
| Q1 25 | — | $1.1B | ||
| Q4 24 | — | $1.1B | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | $590.1M | $1.7B | ||
| Q3 25 | $576.5M | $1.7B | ||
| Q2 25 | $572.7M | $1.7B | ||
| Q1 25 | $561.4M | $1.6B | ||
| Q4 24 | $554.3M | $1.6B | ||
| Q3 24 | $547.6M | $1.6B | ||
| Q2 24 | $555.4M | $1.5B | ||
| Q1 24 | $559.9M | $1.5B |
| Q4 25 | $751.9M | $5.7B | ||
| Q3 25 | $706.4M | $5.5B | ||
| Q2 25 | $701.9M | $5.4B | ||
| Q1 25 | $689.0M | $5.3B | ||
| Q4 24 | $670.8M | $5.2B | ||
| Q3 24 | $650.3M | $5.0B | ||
| Q2 24 | $638.7M | $4.9B | ||
| Q1 24 | $657.7M | $4.8B |
| Q4 25 | — | 0.87× | ||
| Q3 25 | — | 0.65× | ||
| Q2 25 | — | 0.67× | ||
| Q1 25 | — | 0.68× | ||
| Q4 24 | — | 0.67× | ||
| 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 | $47.9M |
| Free Cash FlowOCF − Capex | $31.4M | — |
| FCF MarginFCF / Revenue | 29.0% | — |
| Capex IntensityCapex / Revenue | 2.7% | — |
| Cash ConversionOCF / Net Profit | — | 4.17× |
| TTM Free Cash FlowTrailing 4 quarters | $64.3M | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $34.3M | $47.9M | ||
| Q3 25 | $5.5M | $167.3M | ||
| Q2 25 | $14.8M | $48.9M | ||
| Q1 25 | $25.4M | $38.4M | ||
| Q4 24 | $6.6M | $68.1M | ||
| Q3 24 | $16.7M | $101.8M | ||
| Q2 24 | $-15.0M | $94.4M | ||
| Q1 24 | $-4.0M | $26.5M |
| Q4 25 | $31.4M | — | ||
| Q3 25 | $1.4M | — | ||
| Q2 25 | $10.2M | — | ||
| Q1 25 | $21.2M | — | ||
| Q4 24 | $4.1M | — | ||
| Q3 24 | $14.2M | — | ||
| Q2 24 | $-16.1M | — | ||
| Q1 24 | $-6.0M | — |
| Q4 25 | 29.0% | — | ||
| Q3 25 | 1.4% | — | ||
| Q2 25 | 11.9% | — | ||
| Q1 25 | 25.3% | — | ||
| Q4 24 | 5.0% | — | ||
| Q3 24 | 22.2% | — | ||
| Q2 24 | -29.5% | — | ||
| Q1 24 | -11.6% | — |
| Q4 25 | 2.7% | — | ||
| Q3 25 | 4.3% | — | ||
| Q2 25 | 5.3% | — | ||
| Q1 25 | 5.0% | — | ||
| Q4 24 | 3.0% | — | ||
| Q3 24 | 4.0% | — | ||
| Q2 24 | 2.1% | — | ||
| Q1 24 | 3.7% | — |
| Q4 25 | — | 4.17× | ||
| Q3 25 | — | 2.73× | ||
| Q2 25 | — | 1.16× | ||
| Q1 25 | — | 2.88× | ||
| Q4 24 | — | 3.50× | ||
| Q3 24 | — | 1.68× | ||
| Q2 24 | — | 2.33× | ||
| Q1 24 | — | 0.38× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
AMBA
| TW | $76.0M | 70% |
| Asia Pacific Other Than Taiwan | $20.2M | 19% |
| North America Other Than United States | $7.4M | 7% |
| Other | $5.0M | 5% |
CWT
| Residential | $133.2M | 63% |
| Business | $47.7M | 23% |
| Public Authorities | $13.4M | 6% |
| Industrial | $6.9M | 3% |
| Non Regulated Services | $4.8M | 2% |
| Other Non Regulated Service | $1.2M | 1% |
