STOR.AS vs. CSPX.AS
STOR.AS (iShares Energy Storage & Hydrogen UCITS ETF USD (Acc)) and CSPX.AS (iShares Core S&P 500 UCITS ETF) are both exchange-traded funds - STOR.AS is a Alternative Energy Equities fund tracking the STOXX Global Energy Storage and Hydrogen Index, while CSPX.AS is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past year, STOR.AS returned 143.90% vs 21.36% for CSPX.AS. At a 0.49 correlation, their price movements are largely independent. STOR.AS charges 0.50%/yr vs 0.07%/yr for CSPX.AS.
Performance
STOR.AS vs. CSPX.AS - Performance Comparison
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Different Trading Currencies
STOR.AS is traded in USD, while CSPX.AS is traded in EUR. To make them comparable, the CSPX.AS values have been converted to USD using the latest available exchange rates.
Returns By Period
In the year-to-date period, STOR.AS achieves a 75.53% return, which is significantly higher than CSPX.AS's 7.38% return.
STOR.AS
- 1D
- -3.37%
- 1M
- -5.75%
- YTD
- 75.53%
- 6M
- 73.71%
- 1Y
- 143.90%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
CSPX.AS
- 1D
- -0.02%
- 1M
- -1.86%
- YTD
- 7.38%
- 6M
- 7.14%
- 1Y
- 21.36%
- 3Y*
- 20.43%
- 5Y*
- 12.81%
- 10Y*
- 15.38%
STOR.AS vs. CSPX.AS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
STOR.AS iShares Energy Storage & Hydrogen UCITS ETF USD (Acc) | 75.53% | 33.58% |
CSPX.AS iShares Core S&P 500 UCITS ETF | 7.38% | 15.20% |
Correlation
The correlation between STOR.AS and CSPX.AS is 0.57, 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 | 0.57 |
Correlation (All Time) Calculated using the full available price history since Feb 10, 2025 | 0.49 |
The correlation between STOR.AS and CSPX.AS has been stable across timeframes, ranging from 0.49 to 0.57 - a consistent structural relationship.
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Return for Risk
STOR.AS vs. CSPX.AS — Risk / Return Rank
STOR.AS
CSPX.AS
STOR.AS vs. CSPX.AS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Energy Storage & Hydrogen UCITS ETF USD (Acc) (STOR.AS) and iShares Core S&P 500 UCITS ETF (CSPX.AS). 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.
| STOR.AS | CSPX.AS | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.67 | ||
| Sortino ratioReturn per unit of downside risk | +2.26 | ||
| Omega ratioGain probability vs. loss probability | 1.66 | 1.32 | +0.34 |
| Calmar ratioReturn relative to maximum drawdown | 10.25 | 2.46 | +7.79 |
| Martin ratioReturn relative to average drawdown | 29.02 | 10.03 | +19.00 |
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Drawdowns
STOR.AS vs. CSPX.AS - Drawdown Comparison
The maximum STOR.AS drawdown since its inception was -20.12%, smaller than the maximum CSPX.AS drawdown of -34.12%. Use the drawdown chart below to compare losses from any high point for STOR.AS and CSPX.AS.
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Drawdown Indicators
| STOR.AS | CSPX.AS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -20.12% | -34.12% | +14.00% |
Max Drawdown (1Y)Largest decline over 1 year | -13.79% | -8.56% | -5.23% |
Max Drawdown (3Y)Largest decline over 3 years | — | -19.52% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -24.42% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -34.12% | — |
Current DrawdownCurrent decline from peak | -11.14% | -3.14% | -8.00% |
Average DrawdownAverage peak-to-trough decline | -4.18% | -3.70% | -0.48% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.90% | 2.12% | +2.78% |
Volatility
STOR.AS vs. CSPX.AS - Volatility Comparison
iShares Energy Storage & Hydrogen UCITS ETF USD (Acc) (STOR.AS) has a higher volatility of 13.61% compared to iShares Core S&P 500 UCITS ETF (CSPX.AS) at 3.71%. This indicates that STOR.AS's price experiences larger fluctuations and is considered to be riskier than CSPX.AS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| STOR.AS | CSPX.AS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 13.61% | 3.71% | +9.90% |
Volatility (6M)Calculated over the trailing 6-month period | 25.68% | 8.57% | +17.11% |
Volatility (1Y)Calculated over the trailing 1-year period | 31.64% | 11.71% | +19.93% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 32.57% | 15.89% | +16.68% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 32.57% | 16.28% | +16.29% |
STOR.AS vs. CSPX.AS - Expense Ratio Comparison
STOR.AS has a 0.50% expense ratio, which is higher than CSPX.AS's 0.07% expense ratio.
Dividends
STOR.AS vs. CSPX.AS - Dividend Comparison
Neither STOR.AS nor CSPX.AS has paid dividends to shareholders.
Frequently Asked Questions
STOR.AS and CSPX.AS have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, CSPX.AS is cheaper at 0.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.
CSPX.AS is cheaper with a 0.07% expense ratio, compared with 0.50% for STOR.AS.
STOR.AS is categorized as Alternative Energy Equities, while CSPX.AS is S&P 500. STOR.AS tracks STOXX Global Energy Storage and Hydrogen Index, while CSPX.AS tracks S&P 500 Index. Their fees differ too: 0.50% for STOR.AS and 0.07% for CSPX.AS.
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