IDTP.L vs. SPIP
IDTP.L (iShares $ TIPS UCITS ETF USD (Acc)) and SPIP (SPDR Portfolio TIPS ETF) are both Inflation-Protected Bonds funds - IDTP.L tracks the Bloomberg Gbl Infl Linked US TIPS TR USD while SPIP tracks the Bloomberg Barclays US Government Inflation-linked Bond Index. Both are passively managed. Over the past 10 years, IDTP.L returned 2.62%/yr vs 2.62%/yr for SPIP. At a 0.50 correlation, their price movements are largely independent. Both charge a 0.12% expense ratio.
Performance
IDTP.L vs. SPIP - Performance Comparison
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Returns By Period
In the year-to-date period, IDTP.L achieves a 1.09% return, which is significantly lower than SPIP's 1.49% return. Over a longer period, both investments have demonstrated similar performance, with their 10-year annualized returns being quite close: IDTP.L at 2.62% and SPIP at 2.62%.
IDTP.L
- 1D
- 0.04%
- 1M
- 0.02%
- YTD
- 1.09%
- 6M
- 1.17%
- 1Y
- 4.80%
- 3Y*
- 3.82%
- 5Y*
- 0.96%
- 10Y*
- 2.62%
SPIP
- 1D
- 0.00%
- 1M
- 0.05%
- YTD
- 1.49%
- 6M
- 1.18%
- 1Y
- 4.64%
- 3Y*
- 3.80%
- 5Y*
- 0.87%
- 10Y*
- 2.62%
IDTP.L vs. SPIP - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IDTP.L iShares $ TIPS UCITS ETF USD (Acc) | 1.09% | 6.94% | 2.15% | 3.71% | -12.76% | 6.17% | 10.98% | 8.68% | -1.43% | 3.28% |
SPIP SPDR Portfolio TIPS ETF | 1.49% | 6.78% | 2.35% | 2.98% | -12.84% | 5.80% | 11.41% | 9.14% | -1.53% | 3.16% |
Correlation
The correlation between IDTP.L and SPIP is 0.58, 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 | 0.58 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.61 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.59 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.58 |
Correlation (All Time) Calculated using the full available price history since May 31, 2007 | 0.50 |
The correlation between IDTP.L and SPIP shifts across timeframes, from 0.50 (all time) to 0.61 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
IDTP.L vs. SPIP — Risk / Return Rank
IDTP.L
SPIP
IDTP.L vs. SPIP - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares $ TIPS UCITS ETF USD (Acc) (IDTP.L) and SPDR Portfolio TIPS ETF (SPIP). 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.
| IDTP.L | SPIP | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.04 | ||
| Sortino ratioReturn per unit of downside risk | -0.06 | ||
| Omega ratioGain probability vs. loss probability | 1.22 | 1.24 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 2.48 | 2.28 | +0.20 |
| Martin ratioReturn relative to average drawdown | 6.88 | 6.70 | +0.18 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| IDTP.L | SPIP | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.26 | 1.31 | -0.04 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.16 | 0.13 | +0.02 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.41 | 0.44 | -0.03 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.51 | 0.53 | -0.02 |
Drawdowns
IDTP.L vs. SPIP - Drawdown Comparison
The maximum IDTP.L drawdown since its inception was -15.12%, roughly equal to the maximum SPIP drawdown of -15.39%. Use the drawdown chart below to compare losses from any high point for IDTP.L and SPIP.
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Drawdown Indicators
| IDTP.L | SPIP | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.12% | -15.39% | +0.27% |
Max Drawdown (1Y)Largest decline over 1 year | -1.92% | -2.04% | +0.12% |
Max Drawdown (3Y)Largest decline over 3 years | -4.51% | -4.76% | +0.25% |
Max Drawdown (5Y)Largest decline over 5 years | -15.12% | -15.39% | +0.27% |
Max Drawdown (10Y)Largest decline over 10 years | -15.12% | -15.39% | +0.27% |
Current DrawdownCurrent decline from peak | -0.61% | -1.02% | +0.41% |
Average DrawdownAverage peak-to-trough decline | -4.22% | -4.10% | -0.12% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.69% | 0.70% | -0.01% |
Volatility
IDTP.L vs. SPIP - Volatility Comparison
iShares $ TIPS UCITS ETF USD (Acc) (IDTP.L) has a higher volatility of 1.30% compared to SPDR Portfolio TIPS ETF (SPIP) at 0.95%. This indicates that IDTP.L's price experiences larger fluctuations and is considered to be riskier than SPIP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IDTP.L | SPIP | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.30% | 0.95% | +0.35% |
Volatility (6M)Calculated over the trailing 6-month period | 2.66% | 2.54% | +0.12% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.78% | 3.57% | +0.21% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.13% | 6.57% | -0.44% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 6.37% | 6.01% | +0.36% |
IDTP.L vs. SPIP - Expense Ratio Comparison
Both IDTP.L and SPIP have an expense ratio of 0.12%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
IDTP.L vs. SPIP - Dividend Comparison
IDTP.L has not paid dividends to shareholders, while SPIP's dividend yield for the trailing twelve months is around 4.75%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IDTP.L iShares $ TIPS UCITS ETF USD (Acc) | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SPIP SPDR Portfolio TIPS ETF | 4.75% | 4.09% | 3.36% | 3.70% | 7.05% | 4.53% | 1.97% | 2.91% | 2.80% | 3.02% | 1.88% | 0.14% |
Frequently Asked Questions
IDTP.L and SPIP have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
Both ETFs have the same 0.12% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.
IDTP.L and SPIP have the same expense ratio: 0.12% per year.
IDTP.L tracks Bloomberg Gbl Infl Linked US TIPS TR USD, while SPIP tracks Bloomberg Barclays US Government Inflation-linked Bond Index. They also come from different issuers: iShares and State Street.
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