PLUG vs. SIRI
PLUG (Plug Power Inc.) and SIRI (Sirius XM Holdings Inc.) are both stocks. PLUG operates in Electrical Equipment & Parts (Industrials), while SIRI operates in Broadcasting (Communication Services). Over the past 10 years, PLUG returned 4.78%/yr vs -1.29%/yr for SIRI. At a 0.22 correlation, their price movements are largely independent.
Performance
PLUG vs. SIRI - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with PLUG having a 40.10% return and SIRI slightly higher at 40.80%. Over the past 10 years, PLUG has outperformed SIRI with an annualized return of 4.78%, while SIRI has yielded a comparatively lower -1.29% annualized return.
PLUG
- 1D
- -2.47%
- 1M
- -30.30%
- YTD
- 40.10%
- 6M
- 18.97%
- 1Y
- 112.31%
- 3Y*
- -36.75%
- 5Y*
- -38.69%
- 10Y*
- 4.78%
SIRI
- 1D
- -0.25%
- 1M
- 4.40%
- YTD
- 40.80%
- 6M
- 29.44%
- 1Y
- 31.77%
- 3Y*
- -6.96%
- 5Y*
- -13.30%
- 10Y*
- -1.29%
PLUG vs. SIRI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PLUG Plug Power Inc. | 40.10% | -7.51% | -52.67% | -63.62% | -56.18% | -16.75% | 973.10% | 154.84% | -47.46% | 96.67% |
SIRI Sirius XM Holdings Inc. | 40.80% | -7.97% | -56.93% | -4.27% | -3.21% | 0.74% | -10.11% | 26.24% | 7.28% | 21.42% |
Correlation
The correlation between PLUG and SIRI is 0.21, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.21 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.26 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.31 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.29 |
Correlation (All Time) Calculated using the full available price history since Oct 29, 1999 | 0.22 |
Fundamentals
PLUG:
$3.84B
SIRI:
$9.30B
PLUG:
-$1.39
SIRI:
$2.41
PLUG:
4.51
SIRI:
1.13
PLUG:
5.12
SIRI:
0.79
PLUG:
$739.76M
SIRI:
$8.58B
PLUG:
-$189.79M
SIRI:
$4.10B
PLUG:
-$745.89M
SIRI:
$1.77B
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Return for Risk
PLUG vs. SIRI — Risk / Return Rank
PLUG
SIRI
PLUG vs. SIRI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Plug Power Inc. (PLUG) and Sirius XM Holdings Inc. (SIRI). 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.
| PLUG | SIRI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.14 | ||
| Sortino ratioReturn per unit of downside risk | +0.75 | ||
| Omega ratioGain probability vs. loss probability | 1.25 | 1.18 | +0.06 |
| Calmar ratioReturn relative to maximum drawdown | 1.99 | 1.83 | +0.16 |
| Martin ratioReturn relative to average drawdown | 3.38 | 3.60 | -0.23 |
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Drawdowns
PLUG vs. SIRI - Drawdown Comparison
The maximum PLUG drawdown since its inception was -99.99%, roughly equal to the maximum SIRI drawdown of -99.92%. Use the drawdown chart below to compare losses from any high point for PLUG and SIRI.
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Drawdown Indicators
| PLUG | SIRI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.99% | -99.92% | -0.07% |
Max Drawdown (1Y)Largest decline over 1 year | -56.66% | -17.44% | -39.22% |
Max Drawdown (3Y)Largest decline over 3 years | -94.69% | -73.87% | -20.82% |
Max Drawdown (5Y)Largest decline over 5 years | -98.43% | -73.87% | -24.56% |
Max Drawdown (10Y)Largest decline over 10 years | -99.04% | -73.87% | -25.17% |
Current DrawdownCurrent decline from peak | -99.82% | -94.74% | -5.08% |
Average DrawdownAverage peak-to-trough decline | -96.21% | -80.54% | -15.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 33.39% | 8.85% | +24.54% |
Volatility
PLUG vs. SIRI - Volatility Comparison
Plug Power Inc. (PLUG) has a higher volatility of 26.34% compared to Sirius XM Holdings Inc. (SIRI) at 9.98%. This indicates that PLUG's price experiences larger fluctuations and is considered to be riskier than SIRI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PLUG | SIRI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 26.34% | 9.98% | +16.36% |
Volatility (6M)Calculated over the trailing 6-month period | 64.10% | 23.81% | +40.29% |
Volatility (1Y)Calculated over the trailing 1-year period | 108.06% | 35.40% | +72.66% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 94.54% | 44.90% | +49.64% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 89.47% | 37.67% | +51.80% |
Dividends
PLUG vs. SIRI - Dividend Comparison
PLUG has not paid dividends to shareholders, while SIRI's dividend yield for the trailing twelve months is around 3.92%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
PLUG Plug Power Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SIRI Sirius XM Holdings Inc. | 3.92% | 5.40% | 4.68% | 1.81% | 5.82% | 1.04% | 0.86% | 0.69% | 0.79% | 0.76% | 0.22% |
Financials
PLUG vs. SIRI - Financials Comparison
This section allows you to compare key financial metrics between Plug Power Inc. and Sirius XM Holdings 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
Frequently Asked Questions
PLUG and SIRI have a correlation of 0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PLUG has higher volatility (26.34%) compared to SIRI (9.98%). In terms of maximum drawdown, PLUG dropped -99.99% vs SIRI's -99.92%.
PLUG currently has the higher Sharpe Ratio (1.05 vs 0.91), 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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