FTHRX vs. WFBIX
FTHRX (Fidelity Intermediate Bond Fund) and WFBIX (iShares U.S. Aggregate Bond Index Fund) are both Intermediate Core Bond funds. Over the past 10 years, FTHRX returned 2.00%/yr vs 1.91%/yr for WFBIX. Their correlation of 0.86 suggests significant overlap in exposure. FTHRX charges 0.45%/yr vs 0.05%/yr for WFBIX.
Performance
FTHRX vs. WFBIX - Performance Comparison
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Returns By Period
In the year-to-date period, FTHRX achieves a 0.15% return, which is significantly lower than WFBIX's 0.43% return. Both investments have delivered pretty close results over the past 10 years, with FTHRX having a 2.00% annualized return and WFBIX not far behind at 1.91%.
FTHRX
- 1D
- 0.29%
- 1M
- 0.32%
- YTD
- 0.15%
- 6M
- 0.60%
- 1Y
- 3.93%
- 3Y*
- 4.57%
- 5Y*
- 1.01%
- 10Y*
- 2.00%
WFBIX
- 1D
- 0.55%
- 1M
- 0.56%
- YTD
- 0.43%
- 6M
- 0.98%
- 1Y
- 4.88%
- 3Y*
- 5.33%
- 5Y*
- 0.82%
- 10Y*
- 1.91%
FTHRX vs. WFBIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FTHRX Fidelity Intermediate Bond Fund | 0.15% | 6.89% | 3.25% | 5.55% | -9.17% | -1.60% | 7.06% | 7.20% | 0.52% | 2.31% |
WFBIX iShares U.S. Aggregate Bond Index Fund | 0.43% | 7.16% | 1.43% | 9.65% | -13.03% | -1.79% | 7.40% | 8.72% | -0.08% | 3.39% |
Correlation
The correlation between FTHRX and WFBIX is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.90 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.91 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.92 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.88 |
Correlation (All Time) Calculated using the full available price history since Jul 2, 1993 | 0.86 |
The correlation between FTHRX and WFBIX has been stable across timeframes, ranging from 0.86 to 0.92 - a consistent structural relationship.
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Return for Risk
FTHRX vs. WFBIX — Risk / Return Rank
FTHRX
WFBIX
FTHRX vs. WFBIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Intermediate Bond Fund (FTHRX) and iShares U.S. Aggregate Bond Index Fund (WFBIX). 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.
| FTHRX | WFBIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.18 | ||
| Sortino ratioReturn per unit of downside risk | +0.34 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.22 | +0.04 |
| Calmar ratioReturn relative to maximum drawdown | 1.88 | 1.62 | +0.25 |
| Martin ratioReturn relative to average drawdown | 5.37 | 4.66 | +0.71 |
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Drawdowns
FTHRX vs. WFBIX - Drawdown Comparison
The maximum FTHRX drawdown since its inception was -19.01%, roughly equal to the maximum WFBIX drawdown of -18.68%. Use the drawdown chart below to compare losses from any high point for FTHRX and WFBIX.
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Drawdown Indicators
| FTHRX | WFBIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.01% | -18.68% | -0.33% |
Max Drawdown (1Y)Largest decline over 1 year | -2.11% | -3.02% | +0.91% |
Max Drawdown (3Y)Largest decline over 3 years | -2.68% | -6.09% | +3.41% |
Max Drawdown (5Y)Largest decline over 5 years | -13.18% | -17.84% | +4.66% |
Max Drawdown (10Y)Largest decline over 10 years | -13.25% | -18.68% | +5.43% |
Current DrawdownCurrent decline from peak | -1.09% | -1.50% | +0.41% |
Average DrawdownAverage peak-to-trough decline | -3.07% | -2.26% | -0.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.73% | 1.05% | -0.32% |
Volatility
FTHRX vs. WFBIX - Volatility Comparison
The current volatility for Fidelity Intermediate Bond Fund (FTHRX) is 0.91%, while iShares U.S. Aggregate Bond Index Fund (WFBIX) has a volatility of 1.36%. This indicates that FTHRX experiences smaller price fluctuations and is considered to be less risky than WFBIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FTHRX | WFBIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.91% | 1.36% | -0.45% |
Volatility (6M)Calculated over the trailing 6-month period | 2.05% | 2.88% | -0.83% |
Volatility (1Y)Calculated over the trailing 1-year period | 2.79% | 3.95% | -1.16% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.03% | 6.41% | -2.38% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.40% | 5.17% | -1.77% |
FTHRX vs. WFBIX - Expense Ratio Comparison
FTHRX has a 0.45% expense ratio, which is higher than WFBIX's 0.05% expense ratio.
Dividends
FTHRX vs. WFBIX - Dividend Comparison
FTHRX's dividend yield for the trailing twelve months is around 3.69%, less than WFBIX's 3.91% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FTHRX Fidelity Intermediate Bond Fund | 3.69% | 3.59% | 3.49% | 2.94% | 1.55% | 1.53% | 4.16% | 2.49% | 2.48% | 2.20% | 2.63% | 2.13% |
WFBIX iShares U.S. Aggregate Bond Index Fund | 3.91% | 3.78% | 3.68% | 6.82% | 2.60% | 2.04% | 2.43% | 2.88% | 2.71% | 2.24% | 2.25% | 2.20% |
Frequently Asked Questions
With a correlation of 0.90, FTHRX and WFBIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
WFBIX has higher volatility (1.36%) compared to FTHRX (0.91%). In terms of maximum drawdown, FTHRX dropped -19.01% vs WFBIX's -18.68%.
FTHRX currently has the higher Sharpe Ratio (1.42 vs 1.25), 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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