STEM vs. RYLD
STEM (Stem, Inc.) is a stock, while RYLD (Global X Russell 2000 Covered Call ETF) is Derivative Income fund tracking the CBOE Russell 2000 BuyWrite Index. Over the past 5 years, STEM returned -58.60%/yr vs 3.49%/yr for RYLD. At a 0.49 correlation, their price movements are largely independent.
Performance
STEM vs. RYLD - Performance Comparison
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Returns By Period
In the year-to-date period, STEM achieves a -58.01% return, which is significantly lower than RYLD's 12.08% return.
STEM
- 1D
- -4.68%
- 1M
- -18.77%
- 6M
- -67.92%
- YTD
- -58.01%
- 1Y
- -26.77%
- 3Y*
- -64.39%
- 5Y*
- -58.60%
- 10Y*
- —
RYLD
- 1D
- 0.19%
- 1M
- 2.67%
- 6M
- 9.29%
- YTD
- 12.08%
- 1Y
- 21.02%
- 3Y*
- 8.13%
- 5Y*
- 3.49%
- 10Y*
- —
STEM vs. RYLD - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
STEM Stem, Inc. | -58.01% | 24.79% | -84.46% | -56.60% | -52.87% | -7.28% | 104.60% |
RYLD Global X Russell 2000 Covered Call ETF | 12.08% | 5.65% | 10.13% | 0.27% | -13.03% | 22.13% | 9.24% |
Correlation
The correlation between STEM and RYLD is 0.51, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.51 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.45 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.50 |
Correlation (All Time) Calculated using the full available price history since Oct 8, 2020 | 0.49 |
The correlation between STEM and RYLD has been stable across timeframes, ranging from 0.45 to 0.51 - a consistent structural relationship.
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Return for Risk
STEM vs. RYLD — Risk / Return Rank
STEM
RYLD
STEM vs. RYLD - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Stem, Inc. (STEM) and Global X Russell 2000 Covered Call ETF (RYLD). 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.
| STEM | RYLD | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.21 | ||
| Sortino ratioReturn per unit of downside risk | -2.32 | ||
| Omega ratioGain probability vs. loss probability | 1.05 | 1.41 | -0.36 |
| Calmar ratioReturn relative to maximum drawdown | -0.34 | 3.36 | -3.70 |
| Martin ratioReturn relative to average drawdown | -0.52 | 13.55 | -14.07 |
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Drawdowns
STEM vs. RYLD - Drawdown Comparison
The maximum STEM drawdown since its inception was -99.41%, which is greater than RYLD's maximum drawdown of -41.53%. Use the drawdown chart below to compare losses from any high point for STEM and RYLD.
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Drawdown Indicators
| STEM | RYLD | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.41% | -41.53% | -57.88% |
Max Drawdown (1Y)Largest decline over 1 year | -78.78% | -6.29% | -72.49% |
Max Drawdown (3Y)Largest decline over 3 years | -95.98% | -19.05% | -76.93% |
Max Drawdown (5Y)Largest decline over 5 years | -98.96% | -21.33% | -77.63% |
Current DrawdownCurrent decline from peak | -99.37% | 0.00% | -99.37% |
Average DrawdownAverage peak-to-trough decline | -79.51% | -8.70% | -70.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 51.15% | 1.56% | +49.59% |
Volatility
STEM vs. RYLD - Volatility Comparison
Stem, Inc. (STEM) has a higher volatility of 16.52% compared to Global X Russell 2000 Covered Call ETF (RYLD) at 1.58%. This indicates that STEM's price experiences larger fluctuations and is considered to be riskier than RYLD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| STEM | RYLD | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 16.52% | 1.58% | +14.94% |
Volatility (6M)Calculated over the trailing 6-month period | 59.88% | 7.69% | +52.19% |
Volatility (1Y)Calculated over the trailing 1-year period | 116.42% | 10.66% | +105.76% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 114.03% | 14.02% | +100.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 116.64% | 17.08% | +99.56% |
Dividends
STEM vs. RYLD - Dividend Comparison
STEM has not paid dividends to shareholders, while RYLD's dividend yield for the trailing twelve months is around 11.46%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
RYLD Global X Russell 2000 Covered Call ETF | 11.46% | 12.00% | 12.03% | 12.64% | 13.49% | 12.35% | 10.76% | 6.43% |
STEM Stem, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
STEM and RYLD have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
STEM has higher volatility (16.52%) compared to RYLD (1.58%). In terms of maximum drawdown, STEM dropped -99.41% vs RYLD's -41.53%.
RYLD currently has the higher Sharpe Ratio (1.98 vs -0.23), 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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