VBLLX vs. FIWDX
VBLLX (Vanguard Long-Term Bond Index Fund Institutional Shares) and FIWDX (Fidelity Advisor Strategic Income Fund Class Z) are both Total Bond Market funds. Over the past 5 years, VBLLX returned -5.26%/yr vs 2.67%/yr for FIWDX. Their 0.61 correlation means they have sometimes moved together and sometimes differently. VBLLX charges 0.05%/yr vs 0.61%/yr for FIWDX.
Performance
VBLLX vs. FIWDX - Performance Comparison
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Returns By Period
In the year-to-date period, VBLLX achieves a -3.40% return, which is significantly lower than FIWDX's 1.87% return.
VBLLX
- 1D
- -0.50%
- 1M
- -3.76%
- 6M
- -3.24%
- YTD
- -3.40%
- 1Y
- -1.14%
- 3Y*
- 1.12%
- 5Y*
- -5.26%
- 10Y*
- 0.08%
- ALL TIME*
- 3.79%
FIWDX
- 1D
- 0.08%
- 1M
- -1.23%
- 6M
- 1.12%
- YTD
- 1.87%
- 1Y
- 5.56%
- 3Y*
- 7.15%
- 5Y*
- 2.67%
- 10Y*
- —
- ALL TIME*
- 4.24%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
VBLLX vs. FIWDX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
VBLLX Vanguard Long-Term Bond Index Fund Institutional Shares | -3.40% | 6.60% | -4.12% | 7.13% | -27.20% | -3.08% | 16.27% | 19.15% | 3.14% |
FIWDX Fidelity Advisor Strategic Income Fund Class Z | 1.87% | 8.98% | 6.07% | 9.20% | -11.76% | 3.51% | 7.60% | 11.20% | -1.63% |
Correlation
The correlation between VBLLX and FIWDX is 0.66, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.66 |
Correlation (3Y) Balances recent behavior with more history. | 0.76 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.76 |
Correlation (All Time) Calculated using the full available price history since Oct 17, 2018 | 0.61 |
The correlation between VBLLX and FIWDX shifts across timeframes, from 0.61 (all time) to 0.76 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
VBLLX vs. FIWDX — Risk / Return Rank
VBLLX
FIWDX
VBLLX vs. FIWDX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard Long-Term Bond Index Fund Institutional Shares (VBLLX) and Fidelity Advisor Strategic Income Fund Class Z (FIWDX). 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.
| VBLLX | FIWDX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.52 | ||
| Sortino ratioReturn per unit of downside risk | -2.18 | ||
| Omega ratioGain probability vs. loss probability | 1.00 | 1.29 | -0.29 |
| Calmar ratioReturn relative to maximum drawdown | -0.02 | 2.17 | -2.18 |
| Martin ratioReturn relative to average drawdown | -0.04 | 8.07 | -8.10 |
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Drawdowns
VBLLX vs. FIWDX - Drawdown Comparison
The maximum VBLLX drawdown since its inception was -38.42%, which is greater than FIWDX's maximum drawdown of -15.96%. Use the drawdown chart below to compare losses from any high point for VBLLX and FIWDX.
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Drawdown Indicators
| VBLLX | FIWDX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.42% | -15.96% | -22.46% |
Max Drawdown (1Y)Largest decline over 1 year | -6.35% | -2.61% | -3.74% |
Max Drawdown (3Y)Largest decline over 3 years | -11.55% | -3.63% | -7.92% |
Max Drawdown (5Y)Largest decline over 5 years | -36.29% | -15.96% | -20.33% |
Max Drawdown (10Y)Largest decline over 10 years | -38.42% | — | — |
Current DrawdownCurrent decline from peak | -27.42% | -1.71% | -25.71% |
Average DrawdownAverage peak-to-trough decline | -9.33% | -3.15% | -6.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.71% | 0.70% | +2.01% |
Volatility
VBLLX vs. FIWDX - Volatility Comparison
Vanguard Long-Term Bond Index Fund Institutional Shares (VBLLX) has a higher volatility of 2.07% compared to Fidelity Advisor Strategic Income Fund Class Z (FIWDX) at 0.97%. This indicates that VBLLX's price experiences larger fluctuations and is considered to be riskier than FIWDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VBLLX | FIWDX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.07% | 0.97% | +1.10% |
Volatility (6M)Calculated over the trailing 6-month period | 6.06% | 3.29% | +2.77% |
Volatility (1Y)Calculated over the trailing 1-year period | 7.89% | 3.78% | +4.11% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 12.82% | 4.59% | +8.23% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 11.55% | 4.87% | +6.68% |
VBLLX vs. FIWDX - Expense Ratio Comparison
VBLLX has a 0.05% expense ratio, which is lower than FIWDX's 0.61% expense ratio.
Dividends
VBLLX vs. FIWDX - Dividend Comparison
VBLLX's dividend yield for the trailing twelve months is around 4.57%, more than FIWDX's 4.09% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FIWDX Fidelity Advisor Strategic Income Fund Class Z | 4.09% | 4.39% | 4.21% | 4.02% | 2.99% | 4.28% | 4.62% | 4.39% | 1.13% | 0.00% | 0.00% | 0.00% |
VBLLX Vanguard Long-Term Bond Index Fund Institutional Shares | 4.57% | 4.66% | 4.64% | 3.75% | 4.16% | 2.89% | 5.84% | 3.62% | 3.82% | 3.69% | 4.19% | 4.98% |
Frequently Asked Questions
VBLLX and FIWDX have a correlation of 0.66, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VBLLX has higher volatility (2.07%) compared to FIWDX (0.97%). In terms of maximum drawdown, VBLLX dropped -38.42% vs FIWDX's -15.96%.
FIWDX currently has the higher Sharpe Ratio (1.51 vs -0.01), 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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