SIRI vs. PLUG
SIRI (Sirius XM Holdings Inc.) and PLUG (Plug Power Inc.) are both stocks. SIRI operates in Broadcasting (Communication Services), while PLUG operates in Electrical Equipment & Parts (Industrials). Over the past 10 years, SIRI returned -1.29%/yr vs 4.78%/yr for PLUG. At a 0.22 correlation, their price movements are largely independent.
Performance
SIRI vs. PLUG - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with SIRI having a 40.80% return and PLUG slightly lower at 40.10%. Over the past 10 years, SIRI has underperformed PLUG with an annualized return of -1.29%, while PLUG has yielded a comparatively higher 4.78% annualized return.
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
- 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 vs. PLUG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
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% |
PLUG Plug Power Inc. | 40.10% | -7.51% | -52.67% | -63.62% | -56.18% | -16.75% | 973.10% | 154.84% | -47.46% | 96.67% |
Correlation
The correlation between SIRI and PLUG 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
SIRI:
$9.30B
PLUG:
$3.84B
SIRI:
$2.41
PLUG:
-$1.39
SIRI:
1.13
PLUG:
4.51
SIRI:
0.79
PLUG:
5.12
SIRI:
$8.58B
PLUG:
$739.76M
SIRI:
$4.10B
PLUG:
-$189.79M
SIRI:
$1.77B
PLUG:
-$745.89M
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Return for Risk
SIRI vs. PLUG — Risk / Return Rank
SIRI
PLUG
SIRI vs. PLUG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Sirius XM Holdings Inc. (SIRI) and Plug Power Inc. (PLUG). 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.
| SIRI | PLUG | 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 | 1.18 | 1.25 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | 1.83 | 1.99 | -0.16 |
| Martin ratioReturn relative to average drawdown | 3.60 | 3.38 | +0.23 |
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Drawdowns
SIRI vs. PLUG - Drawdown Comparison
The maximum SIRI drawdown since its inception was -99.92%, roughly equal to the maximum PLUG drawdown of -99.99%. Use the drawdown chart below to compare losses from any high point for SIRI and PLUG.
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Drawdown Indicators
| SIRI | PLUG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.92% | -99.99% | +0.07% |
Max Drawdown (1Y)Largest decline over 1 year | -17.44% | -56.66% | +39.22% |
Max Drawdown (3Y)Largest decline over 3 years | -73.87% | -94.69% | +20.82% |
Max Drawdown (5Y)Largest decline over 5 years | -73.87% | -98.43% | +24.56% |
Max Drawdown (10Y)Largest decline over 10 years | -73.87% | -99.04% | +25.17% |
Current DrawdownCurrent decline from peak | -94.74% | -99.82% | +5.08% |
Average DrawdownAverage peak-to-trough decline | -80.54% | -96.21% | +15.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 8.85% | 33.39% | -24.54% |
Volatility
SIRI vs. PLUG - Volatility Comparison
The current volatility for Sirius XM Holdings Inc. (SIRI) is 9.98%, while Plug Power Inc. (PLUG) has a volatility of 26.34%. This indicates that SIRI experiences smaller price fluctuations and is considered to be less risky than PLUG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SIRI | PLUG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.98% | 26.34% | -16.36% |
Volatility (6M)Calculated over the trailing 6-month period | 23.81% | 64.10% | -40.29% |
Volatility (1Y)Calculated over the trailing 1-year period | 35.40% | 108.06% | -72.66% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 44.90% | 94.54% | -49.64% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 37.67% | 89.47% | -51.80% |
Dividends
SIRI vs. PLUG - Dividend Comparison
SIRI's dividend yield for the trailing twelve months is around 3.92%, while PLUG has not paid dividends to shareholders.
| 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
SIRI vs. PLUG - Financials Comparison
This section allows you to compare key financial metrics between Sirius XM Holdings Inc. and Plug Power 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
SIRI and PLUG 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, SIRI dropped -99.92% vs PLUG's -99.99%.
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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