TBIRX vs. FSTAX
TBIRX (Nuveen Bond Index Fund Retirement Class) and FSTAX (Fidelity Advisor Strategic Income Fund Class A) are both Total Bond Market funds. Over the past 10 years, TBIRX returned 1.17%/yr vs 4.02%/yr for FSTAX. A 0.52 correlation means they provide meaningful diversification when combined. TBIRX charges 0.32%/yr vs 0.97%/yr for FSTAX.
Performance
TBIRX vs. FSTAX - Performance Comparison
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Returns By Period
In the year-to-date period, TBIRX achieves a 0.41% return, which is significantly lower than FSTAX's 3.36% return. Over the past 10 years, TBIRX has underperformed FSTAX with an annualized return of 1.17%, while FSTAX has yielded a comparatively higher 4.02% annualized return.
TBIRX
- 1D
- 0.21%
- 1M
- 0.84%
- YTD
- 0.41%
- 6M
- 0.71%
- 1Y
- 4.55%
- 3Y*
- 3.64%
- 5Y*
- -0.48%
- 10Y*
- 1.17%
FSTAX
- 1D
- 0.33%
- 1M
- 1.41%
- YTD
- 3.36%
- 6M
- 3.74%
- 1Y
- 9.30%
- 3Y*
- 7.45%
- 5Y*
- 2.78%
- 10Y*
- 4.02%
TBIRX vs. FSTAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TBIRX Nuveen Bond Index Fund Retirement Class | 0.41% | 6.85% | 0.81% | 5.01% | -13.87% | -2.05% | 7.50% | 8.28% | -0.57% | 3.17% |
FSTAX Fidelity Advisor Strategic Income Fund Class A | 3.36% | 8.68% | 4.93% | 8.82% | -11.98% | 3.22% | 7.21% | 10.74% | -2.94% | 7.63% |
Correlation
The correlation between TBIRX and FSTAX is 0.74, 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 | 0.74 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.79 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.79 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.63 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 2010 | 0.52 |
Over the past year, TBIRX and FSTAX have become more correlated (0.74) than their long-term average of 0.52, meaning their price movements have been converging.
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Return for Risk
TBIRX vs. FSTAX — Risk / Return Rank
TBIRX
FSTAX
TBIRX vs. FSTAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Nuveen Bond Index Fund Retirement Class (TBIRX) and Fidelity Advisor Strategic Income Fund Class A (FSTAX). 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.
| TBIRX | FSTAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.37 | ||
| Sortino ratioReturn per unit of downside risk | -2.05 | ||
| Omega ratioGain probability vs. loss probability | 1.21 | 1.54 | -0.33 |
| Calmar ratioReturn relative to maximum drawdown | 1.52 | 3.52 | -2.00 |
| Martin ratioReturn relative to average drawdown | 4.30 | 15.12 | -10.82 |
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Drawdowns
TBIRX vs. FSTAX - Drawdown Comparison
The maximum TBIRX drawdown since its inception was -19.64%, smaller than the maximum FSTAX drawdown of -23.29%. Use the drawdown chart below to compare losses from any high point for TBIRX and FSTAX.
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Drawdown Indicators
| TBIRX | FSTAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.64% | -23.29% | +3.65% |
Max Drawdown (1Y)Largest decline over 1 year | -3.03% | -2.65% | -0.38% |
Max Drawdown (3Y)Largest decline over 3 years | -6.22% | -4.04% | -2.18% |
Max Drawdown (5Y)Largest decline over 5 years | -18.79% | -16.18% | -2.61% |
Max Drawdown (10Y)Largest decline over 10 years | -19.64% | -16.18% | -3.46% |
Current DrawdownCurrent decline from peak | -4.69% | 0.00% | -4.69% |
Average DrawdownAverage peak-to-trough decline | -3.93% | -4.82% | +0.89% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.06% | 0.62% | +0.44% |
Volatility
TBIRX vs. FSTAX - Volatility Comparison
The current volatility for Nuveen Bond Index Fund Retirement Class (TBIRX) is 1.14%, while Fidelity Advisor Strategic Income Fund Class A (FSTAX) has a volatility of 1.38%. This indicates that TBIRX experiences smaller price fluctuations and is considered to be less risky than FSTAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TBIRX | FSTAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.14% | 1.38% | -0.24% |
Volatility (6M)Calculated over the trailing 6-month period | 2.92% | 3.08% | -0.16% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.86% | 3.66% | +0.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.05% | 4.52% | +1.53% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.00% | 4.44% | +0.56% |
TBIRX vs. FSTAX - Expense Ratio Comparison
TBIRX has a 0.32% expense ratio, which is lower than FSTAX's 0.97% expense ratio.
Dividends
TBIRX vs. FSTAX - Dividend Comparison
TBIRX's dividend yield for the trailing twelve months is around 3.65%, less than FSTAX's 4.00% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FSTAX Fidelity Advisor Strategic Income Fund Class A | 4.00% | 4.05% | 3.21% | 3.70% | 2.70% | 4.01% | 4.32% | 4.06% | 3.50% | 3.70% | 3.49% | 2.89% |
TBIRX Nuveen Bond Index Fund Retirement Class | 3.65% | 3.48% | 2.91% | 2.23% | 1.89% | 1.81% | 2.90% | 2.56% | 2.23% | 2.19% | 2.06% | 1.95% |
Frequently Asked Questions
TBIRX and FSTAX have a correlation of 0.74, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FSTAX has higher volatility (1.38%) compared to TBIRX (1.14%). In terms of maximum drawdown, TBIRX dropped -19.64% vs FSTAX's -23.29%.
FSTAX currently has the higher Sharpe Ratio (2.55 vs 1.19), 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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