FIFZX vs. FSTAX
FIFZX (Fidelity Series Bond Index Fund) and FSTAX (Fidelity Advisor Strategic Income Fund Class A) are both Total Bond Market funds from Fidelity. Over the past 5 years, FIFZX returned -0.53%/yr vs 2.17%/yr for FSTAX. Their 0.69 correlation means they have sometimes moved together and sometimes differently. FIFZX charges 0.00%/yr vs 0.97%/yr for FSTAX.
Performance
FIFZX vs. FSTAX - Performance Comparison
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Returns By Period
In the year-to-date period, FIFZX achieves a -0.66% return, which is significantly lower than FSTAX's 1.61% return.
FIFZX
- 1D
- 0.00%
- 1M
- -1.22%
- 6M
- -0.88%
- YTD
- -0.66%
- 1Y
- 1.78%
- 3Y*
- 3.68%
- 5Y*
- -0.53%
- 10Y*
- —
- ALL TIME*
- 1.24%
FSTAX
- 1D
- 0.25%
- 1M
- -1.25%
- 6M
- 0.88%
- YTD
- 1.61%
- 1Y
- 5.16%
- 3Y*
- 6.42%
- 5Y*
- 2.17%
- 10Y*
- 3.60%
- ALL TIME*
- 1.95%
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 |
FIFZX vs. FSTAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
FIFZX Fidelity Series Bond Index Fund | -0.66% | 7.15% | 1.41% | 5.54% | -13.46% | -1.96% | 7.65% | 5.12% |
FSTAX Fidelity Advisor Strategic Income Fund Class A | 1.61% | 8.68% | 4.93% | 8.82% | -11.98% | 3.22% | 7.21% | 4.92% |
Correlation
The correlation between FIFZX and FSTAX is 0.70, 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. | 0.70 |
Correlation (3Y) Balances recent behavior with more history. | 0.78 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.79 |
Correlation (All Time) Calculated using the full available price history since Apr 26, 2019 | 0.69 |
The correlation between FIFZX and FSTAX shifts across timeframes, from 0.69 (all time) to 0.79 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
FIFZX vs. FSTAX — Risk / Return Rank
FIFZX
FSTAX
FIFZX vs. FSTAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Series Bond Index Fund (FIFZX) 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.
| FIFZX | FSTAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.70 | ||
| Sortino ratioReturn per unit of downside risk | -0.98 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.28 | -0.15 |
| Calmar ratioReturn relative to maximum drawdown | 1.04 | 2.11 | -1.07 |
| Martin ratioReturn relative to average drawdown | 2.59 | 8.07 | -5.48 |
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Drawdowns
FIFZX vs. FSTAX - Drawdown Comparison
The maximum FIFZX drawdown since its inception was -19.27%, smaller than the maximum FSTAX drawdown of -23.29%. Use the drawdown chart below to compare losses from any high point for FIFZX and FSTAX.
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Drawdown Indicators
| FIFZX | FSTAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.27% | -23.29% | +4.02% |
Max Drawdown (1Y)Largest decline over 1 year | -2.91% | -2.65% | -0.26% |
Max Drawdown (3Y)Largest decline over 3 years | -5.11% | -3.63% | -1.48% |
Max Drawdown (5Y)Largest decline over 5 years | -18.47% | -16.18% | -2.29% |
Max Drawdown (10Y)Largest decline over 10 years | — | -16.18% | — |
Current DrawdownCurrent decline from peak | -3.83% | -1.74% | -2.09% |
Average DrawdownAverage peak-to-trough decline | -6.62% | -4.81% | -1.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.17% | 0.69% | +0.48% |
Volatility
FIFZX vs. FSTAX - Volatility Comparison
Fidelity Series Bond Index Fund (FIFZX) and Fidelity Advisor Strategic Income Fund Class A (FSTAX) have volatilities of 0.96% and 1.01%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FIFZX | FSTAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.96% | 1.01% | -0.05% |
Volatility (6M)Calculated over the trailing 6-month period | 3.00% | 3.22% | -0.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.85% | 3.76% | +0.09% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.08% | 4.55% | +1.53% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.59% | 4.44% | +1.15% |
FIFZX vs. FSTAX - Expense Ratio Comparison
FIFZX has a 0.00% expense ratio, which is lower than FSTAX's 0.97% expense ratio.
Dividends
FIFZX vs. FSTAX - Dividend Comparison
FIFZX's dividend yield for the trailing twelve months is around 3.74%, less than FSTAX's 3.78% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FIFZX Fidelity Series Bond Index Fund | 3.74% | 3.87% | 3.66% | 3.09% | 1.74% | 1.42% | 3.20% | 1.64% | 0.00% | 0.00% | 0.00% | 0.00% |
FSTAX Fidelity Advisor Strategic Income Fund Class A | 3.78% | 4.05% | 3.21% | 3.70% | 2.70% | 4.01% | 4.32% | 4.06% | 3.50% | 3.70% | 3.49% | 2.89% |
Frequently Asked Questions
FIFZX and FSTAX have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FSTAX has higher volatility (1.01%) compared to FIFZX (0.96%). In terms of maximum drawdown, FIFZX dropped -19.27% vs FSTAX's -23.29%.
FSTAX currently has the higher Sharpe Ratio (1.49 vs 0.79), 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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