SBS vs. ACMR
SBS (Companhia de Saneamento Básico do Estado de São Paulo - SABESP) and ACMR (ACM Research, Inc.) are both stocks. SBS operates in Utilities - Regulated Water (Utilities), while ACMR operates in Semiconductor Equipment & Materials (Technology). Over the past 5 years, SBS returned 32.68%/yr vs 25.99%/yr for ACMR. At a 0.14 correlation, their price movements are largely independent.
Performance
SBS vs. ACMR - Performance Comparison
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Returns By Period
In the year-to-date period, SBS achieves a 15.28% return, which is significantly lower than ACMR's 138.15% return.
SBS
- 1D
- -0.18%
- 1M
- -6.98%
- YTD
- 15.28%
- 6M
- 14.60%
- 1Y
- 38.40%
- 3Y*
- 40.12%
- 5Y*
- 32.68%
- 10Y*
- 16.43%
ACMR
- 1D
- 2.45%
- 1M
- 45.10%
- YTD
- 138.15%
- 6M
- 141.95%
- 1Y
- 265.21%
- 3Y*
- 104.60%
- 5Y*
- 25.99%
- 10Y*
- —
SBS vs. ACMR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SBS Companhia de Saneamento Básico do Estado de São Paulo - SABESP | 15.28% | 80.60% | -4.21% | 46.89% | 48.42% | -13.79% | -40.98% | 91.22% | -20.37% | 13.83% |
ACMR ACM Research, Inc. | 138.15% | 161.26% | -22.72% | 153.44% | -72.87% | 4.95% | 340.38% | 69.58% | 107.24% | -35.74% |
Correlation
The correlation between SBS and ACMR is 0.23, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.23 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.19 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.16 |
Correlation (All Time) Calculated using the full available price history since Nov 3, 2017 | 0.14 |
Fundamentals
SBS:
$19.24B
ACMR:
$6.55B
SBS:
R$2.48
ACMR:
$1.33
SBS:
11.24
ACMR:
70.83
SBS:
0.22
ACMR:
2.48
SBS:
2.48
ACMR:
6.71
SBS:
2.27
ACMR:
4.14
SBS:
R$38.70B
ACMR:
$960.23M
SBS:
R$13.96B
ACMR:
$424.76M
SBS:
R$14.87B
ACMR:
$162.91M
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Return for Risk
SBS vs. ACMR — Risk / Return Rank
SBS
ACMR
SBS vs. ACMR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Companhia de Saneamento Básico do Estado de São Paulo - SABESP (SBS) and ACM Research, Inc. (ACMR). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| SBS | ACMR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.30 | ||
| Sortino ratioReturn per unit of downside risk | -1.42 | ||
| Omega ratioGain probability vs. loss probability | 1.21 | 1.45 | -0.24 |
| Calmar ratioReturn relative to maximum drawdown | 1.55 | 5.76 | -4.21 |
| Martin ratioReturn relative to average drawdown | 4.65 | 14.73 | -10.08 |
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Drawdowns
SBS vs. ACMR - Drawdown Comparison
The maximum SBS drawdown since its inception was -76.49%, smaller than the maximum ACMR drawdown of -87.23%. Use the drawdown chart below to compare losses from any high point for SBS and ACMR.
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Drawdown Indicators
| SBS | ACMR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -76.49% | -87.23% | +10.74% |
Max Drawdown (1Y)Largest decline over 1 year | -24.88% | -46.34% | +21.46% |
Max Drawdown (3Y)Largest decline over 3 years | -24.88% | -58.42% | +33.54% |
Max Drawdown (5Y)Largest decline over 5 years | -30.35% | -84.81% | +54.46% |
Max Drawdown (10Y)Largest decline over 10 years | -61.91% | — | — |
Current DrawdownCurrent decline from peak | -22.90% | 0.00% | -22.90% |
Average DrawdownAverage peak-to-trough decline | -25.70% | -39.55% | +13.85% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 8.28% | 18.11% | -9.83% |
Volatility
SBS vs. ACMR - Volatility Comparison
The current volatility for Companhia de Saneamento Básico do Estado de São Paulo - SABESP (SBS) is 8.92%, while ACM Research, Inc. (ACMR) has a volatility of 33.26%. This indicates that SBS experiences smaller price fluctuations and is considered to be less risky than ACMR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SBS | ACMR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.92% | 33.26% | -24.34% |
Volatility (6M)Calculated over the trailing 6-month period | 24.61% | 59.35% | -34.74% |
Volatility (1Y)Calculated over the trailing 1-year period | 33.86% | 77.68% | -43.82% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 36.90% | 80.77% | -43.87% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 43.51% | 83.99% | -40.48% |
Dividends
SBS vs. ACMR - Dividend Comparison
SBS's dividend yield for the trailing twelve months is around 2.33%, while ACMR has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ACMR ACM Research, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SBS Companhia de Saneamento Básico do Estado de São Paulo - SABESP | 2.33% | 4.68% | 1.96% | 1.66% | 1.88% | 0.97% | 2.93% | 1.99% | 3.86% | 2.76% | 0.65% | 1.91% |
Financials
SBS vs. ACMR - Financials Comparison
This section allows you to compare key financial metrics between Companhia de Saneamento Básico do Estado de São Paulo - SABESP and ACM Research, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
SBS vs. ACMR - Profitability Comparison
SBS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Companhia de Saneamento Básico do Estado de São Paulo - SABESP reported a gross profit of 3.79B and revenue of 9.78B. Therefore, the gross margin over that period was 38.8%.
ACMR - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, ACM Research, Inc. reported a gross profit of 107.24M and revenue of 231.26M. Therefore, the gross margin over that period was 46.4%.
SBS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Companhia de Saneamento Básico do Estado de São Paulo - SABESP reported an operating income of 3.33B and revenue of 9.78B, resulting in an operating margin of 34.1%.
ACMR - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, ACM Research, Inc. reported an operating income of 36.18M and revenue of 231.26M, resulting in an operating margin of 15.6%.
SBS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Companhia de Saneamento Básico do Estado de São Paulo - SABESP reported a net income of 1.72B and revenue of 9.78B, resulting in a net margin of 17.6%.
ACMR - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, ACM Research, Inc. reported a net income of 17.31M and revenue of 231.26M, resulting in a net margin of 7.5%.
Frequently Asked Questions
SBS and ACMR have a correlation of 0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
ACMR has higher volatility (33.26%) compared to SBS (8.92%). In terms of maximum drawdown, SBS dropped -76.49% vs ACMR's -87.23%.
ACMR currently has the higher Sharpe Ratio (3.44 vs 1.14), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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