AOSL vs. ARM
AOSL (Alpha and Omega Semiconductor Limited) and ARM (Arm Holdings plc American Depositary Shares) are both stocks. Both operate in the Semiconductors industry within the Technology sector. Over the past year, AOSL returned 84.79% vs 145.36% for ARM. At a 0.48 correlation, their price movements are largely independent.
Performance
AOSL vs. ARM - Performance Comparison
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Returns By Period
In the year-to-date period, AOSL achieves a 127.51% return, which is significantly lower than ARM's 235.18% return.
AOSL
- 1D
- -8.69%
- 1M
- 8.03%
- YTD
- 127.51%
- 6M
- 123.89%
- 1Y
- 84.79%
- 3Y*
- 14.65%
- 5Y*
- 8.55%
- 10Y*
- 12.12%
ARM
- 1D
- -10.14%
- 1M
- 19.54%
- YTD
- 235.18%
- 6M
- 227.08%
- 1Y
- 145.36%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
AOSL vs. ARM - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
AOSL Alpha and Omega Semiconductor Limited | 127.51% | -46.50% | 42.10% | -10.51% |
ARM Arm Holdings plc American Depositary Shares | 235.18% | -11.39% | 64.16% | 33.95% |
Correlation
The correlation between AOSL and ARM is 0.49, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.49 |
Correlation (All Time) Calculated using the full available price history since Sep 14, 2023 | 0.48 |
Fundamentals
AOSL:
$1.35B
ARM:
$391.30B
AOSL:
-$2.58
ARM:
$0.85
AOSL:
1.97
ARM:
79.51
AOSL:
1.68
ARM:
47.22
AOSL:
$685.04M
ARM:
$4.92B
AOSL:
$153.49M
ARM:
$4.66B
AOSL:
-$23.38M
ARM:
$1.37B
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Return for Risk
AOSL vs. ARM — Risk / Return Rank
AOSL
ARM
AOSL vs. ARM - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Alpha and Omega Semiconductor Limited (AOSL) and Arm Holdings plc American Depositary Shares (ARM). 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.
| AOSL | ARM | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.00 | ||
| Sortino ratioReturn per unit of downside risk | -1.02 | ||
| Omega ratioGain probability vs. loss probability | 1.25 | 1.35 | -0.10 |
| Calmar ratioReturn relative to maximum drawdown | 1.88 | 3.53 | -1.65 |
| Martin ratioReturn relative to average drawdown | 3.68 | 6.92 | -3.24 |
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Drawdowns
AOSL vs. ARM - Drawdown Comparison
The maximum AOSL drawdown since its inception was -75.27%, which is greater than ARM's maximum drawdown of -53.97%. Use the drawdown chart below to compare losses from any high point for AOSL and ARM.
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Drawdown Indicators
| AOSL | ARM | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -75.27% | -53.97% | -21.30% |
Max Drawdown (1Y)Largest decline over 1 year | -45.32% | -41.47% | -3.85% |
Max Drawdown (3Y)Largest decline over 3 years | -66.94% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -75.27% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -75.27% | — | — |
Current DrawdownCurrent decline from peak | -31.42% | -16.63% | -14.79% |
Average DrawdownAverage peak-to-trough decline | -43.43% | -21.19% | -22.24% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 23.12% | 21.10% | +2.02% |
Volatility
AOSL vs. ARM - Volatility Comparison
Alpha and Omega Semiconductor Limited (AOSL) has a higher volatility of 40.64% compared to Arm Holdings plc American Depositary Shares (ARM) at 35.68%. This indicates that AOSL's price experiences larger fluctuations and is considered to be riskier than ARM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AOSL | ARM | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 40.64% | 35.68% | +4.96% |
Volatility (6M)Calculated over the trailing 6-month period | 63.98% | 59.56% | +4.42% |
Volatility (1Y)Calculated over the trailing 1-year period | 79.83% | 70.84% | +8.99% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 70.82% | 76.95% | -6.13% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 64.06% | 76.95% | -12.89% |
Dividends
AOSL vs. ARM - Dividend Comparison
Neither AOSL nor ARM has paid dividends to shareholders.
Financials
AOSL vs. ARM - Financials Comparison
This section allows you to compare key financial metrics between Alpha and Omega Semiconductor Limited and Arm Holdings plc American Depositary Shares. 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
AOSL vs. ARM - Profitability Comparison
AOSL - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Alpha and Omega Semiconductor Limited reported a gross profit of 34.53M and revenue of 163.79M. Therefore, the gross margin over that period was 21.1%.
ARM - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Arm Holdings plc American Depositary Shares reported a gross profit of 1.39B and revenue of 1.49B. Therefore, the gross margin over that period was 93.1%.
AOSL - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Alpha and Omega Semiconductor Limited reported an operating income of -14.06M and revenue of 163.79M, resulting in an operating margin of -8.6%.
ARM - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Arm Holdings plc American Depositary Shares reported an operating income of 440.00M and revenue of 1.49B, resulting in an operating margin of 29.5%.
AOSL - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Alpha and Omega Semiconductor Limited reported a net income of 15.42M and revenue of 163.79M, resulting in a net margin of 9.4%.
ARM - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Arm Holdings plc American Depositary Shares reported a net income of 313.00M and revenue of 1.49B, resulting in a net margin of 21.0%.
Frequently Asked Questions
AOSL and ARM have a correlation of 0.49, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AOSL has higher volatility (40.64%) compared to ARM (35.68%). In terms of maximum drawdown, AOSL dropped -75.27% vs ARM's -53.97%.
ARM currently has the higher Sharpe Ratio (2.07 vs 1.07), 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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