VTP vs. IBIE
VTP (Vanguard Total Inflation-Protected Securities ETF) and IBIE (iShares iBonds Oct 2028 Term TIPS ETF) are both Inflation-Protected Bonds funds - VTP tracks the ICE U.S. Treasury Inflation Linked Bond Index while IBIE tracks the ICE 2028 Maturity US Inflation-Linked Treasury Index. Both are passively managed. Over the past year, VTP returned 3.27% vs 3.40% for IBIE. A 0.63 correlation means they provide meaningful diversification when combined. VTP charges 0.05%/yr vs 0.10%/yr for IBIE.
Performance
VTP vs. IBIE - Performance Comparison
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Returns By Period
In the year-to-date period, VTP achieves a 0.90% return, which is significantly lower than IBIE's 1.72% return.
VTP
- 1D
- 0.07%
- 1M
- -0.50%
- 6M
- 0.58%
- YTD
- 0.90%
- 1Y
- 3.27%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IBIE
- 1D
- -0.06%
- 1M
- -0.18%
- 6M
- 1.51%
- YTD
- 1.72%
- 1Y
- 3.40%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
VTP vs. IBIE - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
VTP Vanguard Total Inflation-Protected Securities ETF | 0.90% | 2.46% |
IBIE iShares iBonds Oct 2028 Term TIPS ETF | 1.72% | 1.92% |
Correlation
The correlation between VTP and IBIE is 0.64, 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 | 0.64 |
Correlation (All Time) Calculated using the full available price history since Jul 9, 2025 | 0.63 |
The correlation between VTP and IBIE has been stable across timeframes, ranging from 0.63 to 0.64 - a consistent structural relationship.
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Return for Risk
VTP vs. IBIE — Risk / Return Rank
VTP
IBIE
VTP vs. IBIE - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Total Inflation-Protected Securities ETF (VTP) and iShares iBonds Oct 2028 Term TIPS ETF (IBIE). 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.
| VTP | IBIE | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.17 | ||
| Sortino ratioReturn per unit of downside risk | -2.17 | ||
| Omega ratioGain probability vs. loss probability | 1.17 | 1.45 | -0.28 |
| Calmar ratioReturn relative to maximum drawdown | 1.71 | 4.76 | -3.05 |
| Martin ratioReturn relative to average drawdown | 4.86 | 14.89 | -10.03 |
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Drawdowns
VTP vs. IBIE - Drawdown Comparison
The maximum VTP drawdown since its inception was -1.92%, which is greater than IBIE's maximum drawdown of -1.70%. Use the drawdown chart below to compare losses from any high point for VTP and IBIE.
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Drawdown Indicators
| VTP | IBIE | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -1.92% | -1.70% | -0.22% |
Max Drawdown (1Y)Largest decline over 1 year | -1.92% | -0.72% | -1.20% |
Current DrawdownCurrent decline from peak | -0.94% | -0.37% | -0.57% |
Average DrawdownAverage peak-to-trough decline | -0.53% | -0.39% | -0.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.67% | 0.23% | +0.44% |
Volatility
VTP vs. IBIE - Volatility Comparison
Vanguard Total Inflation-Protected Securities ETF (VTP) has a higher volatility of 1.19% compared to iShares iBonds Oct 2028 Term TIPS ETF (IBIE) at 0.55%. This indicates that VTP's price experiences larger fluctuations and is considered to be riskier than IBIE based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VTP | IBIE | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.19% | 0.55% | +0.64% |
Volatility (6M)Calculated over the trailing 6-month period | 2.48% | 1.10% | +1.38% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.36% | 1.59% | +1.77% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.35% | 2.82% | +0.53% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.35% | 2.82% | +0.53% |
VTP vs. IBIE - Expense Ratio Comparison
VTP has a 0.05% expense ratio, which is lower than IBIE's 0.10% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
VTP vs. IBIE - Dividend Comparison
VTP's dividend yield for the trailing twelve months is around 2.98%, less than IBIE's 4.96% yield.
| Position | TTM | 2025 | 2024 | 2023 |
|---|---|---|---|---|
IBIE iShares iBonds Oct 2028 Term TIPS ETF | 4.96% | 4.09% | 4.23% | 0.75% |
VTP Vanguard Total Inflation-Protected Securities ETF | 2.98% | 1.56% | 0.00% | 0.00% |
Frequently Asked Questions
VTP and IBIE have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VTP has higher volatility (1.19%) compared to IBIE (0.55%). In terms of maximum drawdown, VTP dropped -1.92% vs IBIE's -1.70%.
On 1-year performance, IBIE leads with 3.40% vs 3.27% for VTP. On fees, VTP is cheaper at 0.05% per year. On volatility, IBIE has been the lower-risk option at 0.55%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, IBIE has performed better with a 3.40% return vs 3.27%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
VTP is cheaper with a 0.05% expense ratio, compared with 0.10% for IBIE.
IBIE has the higher dividend yield at 4.96%, compared with 2.98% for VTP.
VTP tracks ICE U.S. Treasury Inflation Linked Bond Index, while IBIE tracks ICE 2028 Maturity US Inflation-Linked Treasury Index. They also come from different issuers: Vanguard and iShares. Their fees differ too: 0.05% for VTP and 0.10% for IBIE.
IBIE currently has the higher Sharpe Ratio (2.15 vs 0.98), 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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