TLDTX vs. BIIPX
TLDTX (T. Rowe Price U.S. Limited Duration TIPS Index Fund) and BIIPX (iShares Short-Term TIPS Bond Index Fund) are both Inflation-Protected Bonds funds. Over the past 5 years, TLDTX returned 1.88%/yr vs 2.80%/yr for BIIPX. Their correlation of 0.82 suggests significant overlap in exposure. TLDTX charges 0.21%/yr vs 0.08%/yr for BIIPX.
Performance
TLDTX vs. BIIPX - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with TLDTX having a 1.81% return and BIIPX slightly higher at 1.87%.
TLDTX
- 1D
- 0.00%
- 1M
- 0.12%
- YTD
- 1.81%
- 6M
- 1.84%
- 1Y
- 4.33%
- 3Y*
- 3.87%
- 5Y*
- 1.88%
- 10Y*
- —
BIIPX
- 1D
- -0.10%
- 1M
- 0.22%
- YTD
- 1.87%
- 6M
- 1.93%
- 1Y
- 4.47%
- 3Y*
- 4.97%
- 5Y*
- 2.80%
- 10Y*
- —
TLDTX vs. BIIPX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
TLDTX T. Rowe Price U.S. Limited Duration TIPS Index Fund | 1.81% | 6.32% | 1.16% | 3.23% | -4.84% | 5.08% | 1.50% |
BIIPX iShares Short-Term TIPS Bond Index Fund | 1.87% | 6.05% | 4.75% | 3.25% | -4.12% | 5.19% | 1.30% |
Correlation
The correlation between TLDTX and BIIPX is 0.68, 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 | 0.68 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.78 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.83 |
Correlation (All Time) Calculated using the full available price history since Nov 18, 2020 | 0.82 |
The correlation between TLDTX and BIIPX shifts across timeframes, from 0.68 (1 year) to 0.83 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
TLDTX vs. BIIPX — Risk / Return Rank
TLDTX
BIIPX
TLDTX vs. BIIPX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price U.S. Limited Duration TIPS Index Fund (TLDTX) and iShares Short-Term TIPS Bond Index Fund (BIIPX). 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.
| TLDTX | BIIPX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.09 | ||
| Sortino ratioReturn per unit of downside risk | -2.55 | ||
| Omega ratioGain probability vs. loss probability | 1.40 | 1.50 | -0.10 |
| Calmar ratioReturn relative to maximum drawdown | 1.36 | 3.76 | -2.40 |
| Martin ratioReturn relative to average drawdown | 2.65 | 16.23 | -13.58 |
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
| TLDTX | BIIPX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.94 | 2.03 | -1.09 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.41 | 0.90 | -0.50 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.56 | 1.12 | -0.55 |
Drawdowns
TLDTX vs. BIIPX - Drawdown Comparison
The maximum TLDTX drawdown since its inception was -7.24%, which is greater than BIIPX's maximum drawdown of -6.46%. Use the drawdown chart below to compare losses from any high point for TLDTX and BIIPX.
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Drawdown Indicators
| TLDTX | BIIPX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -7.24% | -6.46% | -0.78% |
Max Drawdown (1Y)Largest decline over 1 year | -3.28% | -1.22% | -2.06% |
Max Drawdown (3Y)Largest decline over 3 years | -4.50% | -1.22% | -3.28% |
Max Drawdown (5Y)Largest decline over 5 years | -7.24% | -6.46% | -0.78% |
Current DrawdownCurrent decline from peak | -1.18% | -0.10% | -1.08% |
Average DrawdownAverage peak-to-trough decline | -2.27% | -1.08% | -1.19% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.68% | 0.28% | +1.40% |
Volatility
TLDTX vs. BIIPX - Volatility Comparison
The current volatility for T. Rowe Price U.S. Limited Duration TIPS Index Fund (TLDTX) is 0.69%, while iShares Short-Term TIPS Bond Index Fund (BIIPX) has a volatility of 1.21%. This indicates that TLDTX experiences smaller price fluctuations and is considered to be less risky than BIIPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TLDTX | BIIPX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.69% | 1.21% | -0.52% |
Volatility (6M)Calculated over the trailing 6-month period | 1.37% | 1.67% | -0.30% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.75% | 2.27% | +2.48% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.66% | 3.11% | +1.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.48% | 2.64% | +1.84% |
TLDTX vs. BIIPX - Expense Ratio Comparison
TLDTX has a 0.21% expense ratio, which is higher than BIIPX'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
TLDTX vs. BIIPX - Dividend Comparison
TLDTX's dividend yield for the trailing twelve months is around 4.47%, less than BIIPX's 4.59% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
BIIPX iShares Short-Term TIPS Bond Index Fund | 4.59% | 4.64% | 4.30% | 2.65% | 4.56% | 4.39% | 1.58% | 2.27% | 2.74% | 1.89% |
TLDTX T. Rowe Price U.S. Limited Duration TIPS Index Fund | 4.47% | 4.66% | 1.63% | 4.09% | 6.45% | 4.11% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
TLDTX and BIIPX have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BIIPX has higher volatility (1.21%) compared to TLDTX (0.69%). In terms of maximum drawdown, TLDTX dropped -7.24% vs BIIPX's -6.46%.
BIIPX currently has the higher Sharpe Ratio (2.03 vs 0.94), 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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