MMK vs. XLE
MMK (State Street Prime Money Market ETF) and XLE (State Street Energy Select Sector SPDR ETF) are both exchange-traded funds - MMK is a Money Market fund actively managed by State Street, while XLE is a Energy Equities fund tracking the Energy Select Sector Index. MMK is actively managed, while XLE is passively managed. At a correlation of -0.13, they often move in opposite directions. MMK charges 0.18%/yr vs 0.08%/yr for XLE.
Performance
MMK vs. XLE - Performance Comparison
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Returns By Period
MMK
- 1D
- 0.00%
- 1M
- 0.31%
- 6M
- —
- YTD
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- —
XLE
- 1D
- 0.30%
- 1M
- 9.03%
- 6M
- 23.08%
- YTD
- 34.64%
- 1Y
- 41.07%
- 3Y*
- 15.14%
- 5Y*
- 24.04%
- 10Y*
- 10.29%
- ALL TIME*
- 8.86%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $153.90K | $186.00K | $185.90K | |
| $1.74B | $1.68B | $2.01B |
MMK vs. XLE - Yearly Performance Comparison
| 2026 (YTD) | |
|---|---|
MMK State Street Prime Money Market ETF | 1.59% |
XLE State Street Energy Select Sector SPDR ETF | 9.49% |
Correlation
The correlation between MMK and XLE is -0.13, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Feb 12, 2026 | -0.13 |
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Return for Risk
MMK vs. XLE — Risk / Return Rank
MMK
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
XLE
MMK vs. XLE - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for State Street Prime Money Market ETF (MMK) and State Street Energy Select Sector SPDR ETF (XLE). 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.
| MMK | XLE | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.32 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 2.76 | — |
| Martin ratioReturn relative to average drawdown | — | 7.32 | — |
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Drawdowns
MMK vs. XLE - Drawdown Comparison
The maximum MMK drawdown since its inception was -0.01%, smaller than the maximum XLE drawdown of -71.26%. Use the drawdown chart below to compare losses from any high point for MMK and XLE.
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Drawdown Indicators
| MMK | XLE | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.01% | -71.26% | +71.25% |
Max Drawdown (1Y)Largest decline over 1 year | — | -14.98% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -20.14% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -26.04% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -66.81% | — |
Current DrawdownCurrent decline from peak | 0.00% | -4.40% | +4.40% |
Average DrawdownAverage peak-to-trough decline | -0.00% | -17.94% | +17.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 5.63% | — |
Volatility
MMK vs. XLE - Volatility Comparison
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Volatility by Period
| MMK | XLE | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 5.59% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 16.42% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 0.17% | 20.94% | -20.77% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.17% | 25.78% | -25.61% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.17% | 29.58% | -29.41% |
MMK vs. XLE - Expense Ratio Comparison
MMK has a 0.18% expense ratio, which is higher than XLE's 0.08% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
MMK vs. XLE - Dividend Comparison
MMK's dividend yield for the trailing twelve months is around 1.37%, less than XLE's 2.56% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MMK State Street Prime Money Market ETF | 1.37% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
XLE State Street Energy Select Sector SPDR ETF | 2.56% | 3.28% | 3.36% | 3.55% | 3.68% | 4.21% | 5.62% | 6.72% | 3.54% | 3.03% | 2.26% | 3.39% |
Frequently Asked Questions
MMK and XLE have a correlation of -0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, XLE is cheaper at 0.08% per year. The better choice depends on whether you care most about return, fees, risk, or income.
XLE is cheaper with a 0.08% expense ratio, compared with 0.18% for MMK.
XLE has the higher dividend yield at 2.56%, compared with 1.37% for MMK.
MMK is categorized as Money Market, while XLE is Energy Equities. Their fees differ too: 0.18% for MMK and 0.08% for XLE.
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