FTKFX vs. AGG
FTKFX (Fidelity Total Bond K6 Fund) and AGG (iShares Core U.S. Aggregate Bond ETF) are both Total Bond Market funds. Over the past 5 years, FTKFX returned 0.45%/yr vs -0.21%/yr for AGG. Their correlation of 0.90 suggests significant overlap in exposure. FTKFX charges 0.30%/yr vs 0.03%/yr for AGG.
Performance
FTKFX vs. AGG - Performance Comparison
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Returns By Period
In the year-to-date period, FTKFX achieves a 0.38% return, which is significantly higher than AGG's -0.22% return.
FTKFX
- 1D
- 0.00%
- 1M
- -0.20%
- 6M
- 0.26%
- YTD
- 0.38%
- 1Y
- 4.55%
- 3Y*
- 4.87%
- 5Y*
- 0.45%
- 10Y*
- —
AGG
- 1D
- -0.38%
- 1M
- -0.73%
- 6M
- -0.45%
- YTD
- -0.22%
- 1Y
- 3.67%
- 3Y*
- 3.75%
- 5Y*
- -0.21%
- 10Y*
- 1.42%
FTKFX vs. AGG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FTKFX Fidelity Total Bond K6 Fund | 0.38% | 7.53% | 2.36% | 6.65% | -13.23% | -0.46% | 8.75% | 10.03% | -0.75% | 1.14% |
AGG iShares Core U.S. Aggregate Bond ETF | -0.22% | 7.19% | 1.31% | 5.65% | -13.02% | -1.77% | 7.48% | 8.46% | 0.09% | 0.82% |
Correlation
The correlation between FTKFX and AGG is 0.89, 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 | 0.89 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.92 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.94 |
Correlation (All Time) Calculated using the full available price history since Jun 5, 2017 | 0.90 |
The correlation between FTKFX and AGG has been stable across timeframes, ranging from 0.89 to 0.94 - a consistent structural relationship.
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Return for Risk
FTKFX vs. AGG — Risk / Return Rank
FTKFX
AGG
FTKFX vs. AGG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Total Bond K6 Fund (FTKFX) and iShares Core U.S. Aggregate Bond ETF (AGG). 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.
| FTKFX | AGG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.08 | ||
| Sortino ratioReturn per unit of downside risk | +0.12 | ||
| Omega ratioGain probability vs. loss probability | 1.18 | 1.17 | +0.01 |
| Calmar ratioReturn relative to maximum drawdown | 1.46 | 1.33 | +0.12 |
| Martin ratioReturn relative to average drawdown | 4.02 | 3.74 | +0.28 |
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Drawdowns
FTKFX vs. AGG - Drawdown Comparison
The maximum FTKFX drawdown since its inception was -17.81%, roughly equal to the maximum AGG drawdown of -18.43%. Use the drawdown chart below to compare losses from any high point for FTKFX and AGG.
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Drawdown Indicators
| FTKFX | AGG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -17.81% | -18.43% | +0.62% |
Max Drawdown (1Y)Largest decline over 1 year | -2.82% | -2.76% | -0.06% |
Max Drawdown (3Y)Largest decline over 3 years | -5.77% | -6.11% | +0.34% |
Max Drawdown (5Y)Largest decline over 5 years | -17.81% | -17.82% | +0.01% |
Max Drawdown (10Y)Largest decline over 10 years | — | -18.43% | — |
Current DrawdownCurrent decline from peak | -1.53% | -2.60% | +1.07% |
Average DrawdownAverage peak-to-trough decline | -4.16% | -2.70% | -1.46% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.02% | 0.98% | +0.04% |
Volatility
FTKFX vs. AGG - Volatility Comparison
The current volatility for Fidelity Total Bond K6 Fund (FTKFX) is 1.12%, while iShares Core U.S. Aggregate Bond ETF (AGG) has a volatility of 1.26%. This indicates that FTKFX experiences smaller price fluctuations and is considered to be less risky than AGG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FTKFX | AGG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.12% | 1.26% | -0.14% |
Volatility (6M)Calculated over the trailing 6-month period | 3.02% | 2.94% | +0.08% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.89% | 3.79% | +0.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.67% | 6.10% | -0.43% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.91% | 5.41% | -0.50% |
FTKFX vs. AGG - Expense Ratio Comparison
FTKFX has a 0.30% expense ratio, which is higher than AGG's 0.03% expense ratio.
Dividends
FTKFX vs. AGG - Dividend Comparison
FTKFX's dividend yield for the trailing twelve months is around 4.62%, more than AGG's 4.03% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AGG iShares Core U.S. Aggregate Bond ETF | 4.03% | 3.89% | 3.74% | 3.13% | 2.39% | 1.77% | 2.14% | 2.70% | 2.72% | 2.32% | 2.39% | 2.45% |
FTKFX Fidelity Total Bond K6 Fund | 4.62% | 4.61% | 4.76% | 3.86% | 2.53% | 2.24% | 5.51% | 3.26% | 2.94% | 1.63% | 0.00% | 0.00% |
Frequently Asked Questions
FTKFX and AGG have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AGG has higher volatility (1.26%) compared to FTKFX (1.12%). In terms of maximum drawdown, FTKFX dropped -17.81% vs AGG's -18.43%.
FTKFX currently has the higher Sharpe Ratio (1.05 vs 0.97), 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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