FIBUX vs. SCYB
FIBUX (Fidelity Flex U.S. Bond Index Fund) and SCYB (Schwab High Yield Bond ETF) are both funds - FIBUX is a Total Bond Market fund managed by Fidelity, while SCYB is a High Yield Bonds fund tracking the ICE BofA US Cash Pay High Yield Constrained Index. Over the past 3 years, FIBUX returned 3.68%/yr vs 8.22%/yr for SCYB. Their 0.57 correlation means they have sometimes moved together and sometimes differently. FIBUX charges 0.00%/yr vs 0.03%/yr for SCYB.
Performance
FIBUX vs. SCYB - Performance Comparison
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Returns By Period
In the year-to-date period, FIBUX achieves a -0.63% return, which is significantly lower than SCYB's 1.87% return.
FIBUX
- 1D
- 0.00%
- 1M
- -1.21%
- 6M
- -0.86%
- YTD
- -0.63%
- 1Y
- 1.76%
- 3Y*
- 3.68%
- 5Y*
- -0.53%
- 10Y*
- —
- ALL TIME*
- 1.64%
SCYB
- 1D
- 0.08%
- 1M
- -0.27%
- 6M
- 1.11%
- YTD
- 1.87%
- 1Y
- 5.41%
- 3Y*
- 8.22%
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 8.43%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $27.25M | $28.58M | $31.43M |
FIBUX vs. SCYB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
FIBUX Fidelity Flex U.S. Bond Index Fund | -0.63% | 7.20% | 1.31% | 4.23% |
SCYB Schwab High Yield Bond ETF | 1.87% | 8.33% | 8.15% | 7.29% |
Correlation
The correlation between FIBUX and SCYB is 0.56, 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. | 0.56 |
Correlation (3Y) Balances recent behavior with more history. | 0.56 |
Correlation (All Time) Calculated using the full available price history since Jul 11, 2023 | 0.57 |
The correlation between FIBUX and SCYB has been stable across timeframes, ranging from 0.56 to 0.57 - a consistent structural relationship.
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Return for Risk
FIBUX vs. SCYB — Risk / Return Rank
FIBUX
SCYB
FIBUX vs. SCYB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Flex U.S. Bond Index Fund (FIBUX) and Schwab High Yield Bond ETF (SCYB). 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.
| FIBUX | SCYB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.66 | ||
| Sortino ratioReturn per unit of downside risk | -1.02 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.28 | -0.14 |
| Calmar ratioReturn relative to maximum drawdown | 1.02 | 2.21 | -1.20 |
| Martin ratioReturn relative to average drawdown | 2.49 | 9.67 | -7.18 |
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Drawdowns
FIBUX vs. SCYB - Drawdown Comparison
The maximum FIBUX drawdown since its inception was -19.76%, which is greater than SCYB's maximum drawdown of -4.92%. Use the drawdown chart below to compare losses from any high point for FIBUX and SCYB.
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Drawdown Indicators
| FIBUX | SCYB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -19.76% | -4.92% | -14.84% |
Max Drawdown (1Y)Largest decline over 1 year | -2.97% | -2.44% | -0.53% |
Max Drawdown (3Y)Largest decline over 3 years | -5.08% | -4.92% | -0.16% |
Max Drawdown (5Y)Largest decline over 5 years | -18.40% | — | — |
Current DrawdownCurrent decline from peak | -4.49% | -0.46% | -4.03% |
Average DrawdownAverage peak-to-trough decline | -5.76% | -0.50% | -5.26% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.21% | 0.56% | +0.65% |
Volatility
FIBUX vs. SCYB - Volatility Comparison
Fidelity Flex U.S. Bond Index Fund (FIBUX) has a higher volatility of 0.99% compared to Schwab High Yield Bond ETF (SCYB) at 0.74%. This indicates that FIBUX's price experiences larger fluctuations and is considered to be riskier than SCYB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FIBUX | SCYB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.99% | 0.74% | +0.25% |
Volatility (6M)Calculated over the trailing 6-month period | 3.01% | 3.04% | -0.03% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.88% | 3.75% | +0.13% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.04% | 5.04% | +1.00% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.09% | 5.04% | +0.05% |
FIBUX vs. SCYB - Expense Ratio Comparison
FIBUX has a 0.00% expense ratio, which is lower than SCYB's 0.03% 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
FIBUX vs. SCYB - Dividend Comparison
FIBUX's dividend yield for the trailing twelve months is around 3.81%, less than SCYB's 6.94% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
FIBUX Fidelity Flex U.S. Bond Index Fund | 3.81% | 3.95% | 3.65% | 2.93% | 1.62% | 1.18% | 2.32% | 2.96% | 2.70% | 2.45% |
SCYB Schwab High Yield Bond ETF | 6.31% | 6.99% | 7.06% | 3.36% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
FIBUX and SCYB have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FIBUX has higher volatility (0.99%) compared to SCYB (0.74%). In terms of maximum drawdown, FIBUX dropped -19.76% vs SCYB's -4.92%.
SCYB currently has the higher Sharpe Ratio (1.44 vs 0.78), 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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