AGG vs. FLDR
AGG (iShares Core U.S. Aggregate Bond ETF) and FLDR (Fidelity Low Duration Bond Factor ETF) are both exchange-traded funds - AGG is a Total Bond Market fund tracking the Bloomberg U.S. Aggregate Bond Index, while FLDR is a Corporate Bonds fund tracking the Fidelity Low Duration Investment Grade Factor Index. Both are passively managed. Over the past 5 years, AGG returned 0.18%/yr vs 3.72%/yr for FLDR. A 0.53 correlation means they provide meaningful diversification when combined. AGG charges 0.03%/yr vs 0.15%/yr for FLDR.
Performance
AGG vs. FLDR - Performance Comparison
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Returns By Period
In the year-to-date period, AGG achieves a 0.61% return, which is significantly lower than FLDR's 1.58% return.
AGG
- 1D
- 0.09%
- 1M
- 1.18%
- YTD
- 0.61%
- 6M
- 0.92%
- 1Y
- 4.96%
- 3Y*
- 4.06%
- 5Y*
- 0.18%
- 10Y*
- 1.56%
FLDR
- 1D
- 0.00%
- 1M
- 0.47%
- YTD
- 1.58%
- 6M
- 1.88%
- 1Y
- 4.76%
- 3Y*
- 5.30%
- 5Y*
- 3.72%
- 10Y*
- —
AGG vs. FLDR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
AGG iShares Core U.S. Aggregate Bond ETF | 0.61% | 7.19% | 1.31% | 5.65% | -13.02% | -1.77% | 7.48% | 8.46% | 2.49% |
FLDR Fidelity Low Duration Bond Factor ETF | 1.58% | 5.41% | 5.71% | 6.32% | -0.33% | -0.18% | 2.01% | 4.52% | 0.84% |
Correlation
The correlation between AGG and FLDR is 0.67, 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 | 0.67 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.73 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.64 |
Correlation (All Time) Calculated using the full available price history since Jun 14, 2018 | 0.53 |
The correlation between AGG and FLDR shifts across timeframes, from 0.53 (all time) to 0.73 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
AGG vs. FLDR — Risk / Return Rank
AGG
FLDR
AGG vs. FLDR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core U.S. Aggregate Bond ETF (AGG) and Fidelity Low Duration Bond Factor ETF (FLDR). 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.
| AGG | FLDR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -4.62 | ||
| Sortino ratioReturn per unit of downside risk | -8.08 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 2.75 | -1.51 |
| Calmar ratioReturn relative to maximum drawdown | 1.80 | 10.24 | -8.43 |
| Martin ratioReturn relative to average drawdown | 5.30 | 69.94 | -64.63 |
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Drawdowns
AGG vs. FLDR - Drawdown Comparison
The maximum AGG drawdown since its inception was -18.43%, which is greater than FLDR's maximum drawdown of -12.23%. Use the drawdown chart below to compare losses from any high point for AGG and FLDR.
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Drawdown Indicators
| AGG | FLDR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.43% | -12.23% | -6.20% |
Max Drawdown (1Y)Largest decline over 1 year | -2.76% | -0.47% | -2.29% |
Max Drawdown (3Y)Largest decline over 3 years | -6.11% | -0.76% | -5.35% |
Max Drawdown (5Y)Largest decline over 5 years | -17.82% | -2.33% | -15.49% |
Max Drawdown (10Y)Largest decline over 10 years | -18.43% | — | — |
Current DrawdownCurrent decline from peak | -1.79% | 0.00% | -1.79% |
Average DrawdownAverage peak-to-trough decline | -2.71% | -0.35% | -2.36% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.94% | 0.07% | +0.87% |
Volatility
AGG vs. FLDR - Volatility Comparison
iShares Core U.S. Aggregate Bond ETF (AGG) has a higher volatility of 1.37% compared to Fidelity Low Duration Bond Factor ETF (FLDR) at 0.19%. This indicates that AGG's price experiences larger fluctuations and is considered to be riskier than FLDR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AGG | FLDR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.37% | 0.19% | +1.18% |
Volatility (6M)Calculated over the trailing 6-month period | 2.81% | 0.59% | +2.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.80% | 0.81% | +2.99% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.10% | 1.21% | +4.89% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.41% | 5.25% | +0.16% |
AGG vs. FLDR - Expense Ratio Comparison
AGG has a 0.03% expense ratio, which is lower than FLDR's 0.15% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
AGG vs. FLDR - Dividend Comparison
AGG's dividend yield for the trailing twelve months is around 3.97%, less than FLDR's 4.42% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AGG iShares Core U.S. Aggregate Bond ETF | 3.97% | 3.89% | 3.74% | 3.13% | 2.39% | 1.77% | 2.14% | 2.70% | 2.72% | 2.32% | 2.39% | 2.45% |
FLDR Fidelity Low Duration Bond Factor ETF | 4.42% | 4.66% | 5.50% | 5.28% | 2.09% | 0.51% | 1.22% | 2.69% | 1.38% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
AGG and FLDR have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AGG has higher volatility (1.37%) compared to FLDR (0.19%). In terms of maximum drawdown, AGG dropped -18.43% vs FLDR's -12.23%.
On 5-year performance, FLDR leads with 3.72% vs 0.18% for AGG. On fees, AGG is cheaper at 0.03% per year. On volatility, FLDR has been the lower-risk option at 0.19%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, FLDR has performed better with a 3.72% return vs 0.18%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
AGG is cheaper with a 0.03% expense ratio, compared with 0.15% for FLDR.
FLDR has the higher dividend yield at 4.42%, compared with 3.97% for AGG.
AGG is categorized as Total Bond Market, while FLDR is Corporate Bonds. AGG tracks Bloomberg U.S. Aggregate Bond Index, while FLDR tracks Fidelity Low Duration Investment Grade Factor Index. They also come from different issuers: iShares and Fidelity. Their fees differ too: 0.03% for AGG and 0.15% for FLDR.
FLDR currently has the higher Sharpe Ratio (5.93 vs 1.32), 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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