PENG vs. AAOI
PENG (Penguin Solutions, Inc) and AAOI (Applied Optoelectronics, Inc.) are both stocks. Both are in the Technology sector — PENG in Information Technology Services, AAOI in Communication Equipment. Over the past 5 years, PENG returned 17.59%/yr vs 64.92%/yr for AAOI. Their 0.34 correlation means their historical movements had little consistent relationship.
Performance
PENG vs. AAOI - Performance Comparison
Loading charts...
Returns By Period
The year-to-date returns for both investments are quite close, with PENG having a 169.19% return and AAOI slightly higher at 170.57%.
PENG
- 1D
- 2.33%
- 1M
- -14.34%
- 6M
- 174.09%
- YTD
- 169.19%
- 1Y
- 130.84%
- 3Y*
- 25.09%
- 5Y*
- 17.59%
- 10Y*
- —
- ALL TIME*
- 26.68%
AAOI
- 1D
- 4.67%
- 1M
- -22.02%
- 6M
- 116.28%
- YTD
- 170.57%
- 1Y
- 338.09%
- 3Y*
- 137.62%
- 5Y*
- 64.92%
- 10Y*
- 23.27%
- ALL TIME*
- 19.09%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $850.42M | $964.89M | $1.83B | |
| $177.31M | $330.68M | $244.03M |
PENG vs. AAOI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PENG Penguin Solutions, Inc | 169.19% | 1.93% | 1.37% | 27.22% | -58.08% | 88.65% | -0.82% | 27.74% | -11.87% | 180.83% |
AAOI Applied Optoelectronics, Inc. | 170.57% | -5.43% | 90.79% | 922.22% | -63.23% | -39.60% | -28.37% | -23.01% | -59.20% | -45.31% |
Correlation
The correlation between PENG and AAOI is 0.43, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.43 |
Correlation (3Y) Balances recent behavior with more history. | 0.41 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.39 |
Correlation (All Time) Calculated using the full available price history since May 24, 2017 | 0.34 |
Fundamentals
PENG:
$2.70B
AAOI:
$7.57B
PENG:
$0.24
AAOI:
-$0.62
PENG:
1.42
AAOI:
13.00
PENG:
$1.50B
AAOI:
$507.00M
PENG:
$419.76M
AAOI:
$150.29M
PENG:
$125.18M
AAOI:
-$26.44M
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
PENG vs. AAOI — Risk / Return Rank
PENG
AAOI
PENG vs. AAOI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Penguin Solutions, Inc (PENG) and Applied Optoelectronics, Inc. (AAOI). 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.
| PENG | AAOI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.63 | ||
| Sortino ratioReturn per unit of downside risk | -0.68 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 1.33 | -0.03 |
| Calmar ratioReturn relative to maximum drawdown | 2.68 | 4.79 | -2.11 |
| Martin ratioReturn relative to average drawdown | 5.08 | 13.86 | -8.77 |
Loading charts...
Drawdowns
PENG vs. AAOI - Drawdown Comparison
The maximum PENG drawdown since its inception was -68.72%, smaller than the maximum AAOI drawdown of -98.49%. Use the drawdown chart below to compare losses from any high point for PENG and AAOI.
Loading charts...
Drawdown Indicators
| PENG | AAOI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -68.72% | -98.49% | +29.77% |
Max Drawdown (1Y)Largest decline over 1 year | -46.28% | -65.70% | +19.42% |
Max Drawdown (3Y)Largest decline over 3 years | -51.21% | -77.17% | +25.96% |
Max Drawdown (5Y)Largest decline over 5 years | -65.40% | -82.64% | +17.24% |
Max Drawdown (10Y)Largest decline over 10 years | — | -98.49% | — |
Current DrawdownCurrent decline from peak | -35.31% | -57.72% | +22.41% |
Average DrawdownAverage peak-to-trough decline | -37.06% | -65.45% | +28.39% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 24.36% | 22.67% | +1.69% |
Volatility
PENG vs. AAOI - Volatility Comparison
Penguin Solutions, Inc (PENG) and Applied Optoelectronics, Inc. (AAOI) have volatilities of 42.87% and 42.02%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| PENG | AAOI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 42.87% | 42.02% | +0.85% |
Volatility (6M)Calculated over the trailing 6-month period | 68.58% | 111.21% | -42.63% |
Volatility (1Y)Calculated over the trailing 1-year period | 79.59% | 143.64% | -64.05% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 62.70% | 121.27% | -58.57% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 64.39% | 99.35% | -34.96% |
Dividends
PENG vs. AAOI - Dividend Comparison
PENG's dividend yield for the trailing twelve months is around 0.06%, while AAOI has not paid dividends to shareholders.
| Position | TTM |
|---|---|
AAOI Applied Optoelectronics, Inc. | 0.00% |
PENG Penguin Solutions, Inc | 0.06% |
Financials
PENG vs. AAOI - Financials Comparison
This section allows you to compare key financial metrics between Penguin Solutions, Inc and Applied Optoelectronics, 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
PENG vs. AAOI - Profitability Comparison
PENG - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Penguin Solutions, Inc reported a gross profit of 133.70M and revenue of 478.71M. Therefore, the gross margin over that period was 27.9%.
AAOI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Applied Optoelectronics, Inc. reported a gross profit of 43.92M and revenue of 151.14M. Therefore, the gross margin over that period was 29.1%.
PENG - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Penguin Solutions, Inc reported an operating income of 50.86M and revenue of 478.71M, resulting in an operating margin of 10.6%.
AAOI - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Applied Optoelectronics, Inc. reported an operating income of -12.99M and revenue of 151.14M, resulting in an operating margin of -8.6%.
PENG - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Penguin Solutions, Inc reported a net income of -42.17M and revenue of 478.71M, resulting in a net margin of -8.8%.
AAOI - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Applied Optoelectronics, Inc. reported a net income of -14.28M and revenue of 151.14M, resulting in a net margin of -9.5%.
Frequently Asked Questions
PENG and AAOI have a correlation of 0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PENG has higher volatility (42.87%) compared to AAOI (42.02%). In terms of maximum drawdown, PENG dropped -68.72% vs AAOI's -98.49%.
AAOI currently has the higher Sharpe Ratio (2.19 vs 1.56), 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.
Find the right allocation for PENG and AAOI
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer