ACISX vs. FCBAX
ACISX (AB Corporate Income Shares) and FCBAX (Fidelity Advisor Corporate Bond Fund Class A) are both Corporate Bonds funds. Over the past 10 years, ACISX returned 2.95%/yr vs 2.34%/yr for FCBAX. Their correlation of 0.94 suggests significant overlap in exposure. ACISX charges 0.00%/yr vs 0.77%/yr for FCBAX.
Performance
ACISX vs. FCBAX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, ACISX achieves a 0.78% return, which is significantly higher than FCBAX's 0.14% return. Over the past 10 years, ACISX has outperformed FCBAX with an annualized return of 2.95%, while FCBAX has yielded a comparatively lower 2.34% annualized return.
ACISX
- 1D
- 0.10%
- 1M
- 0.94%
- YTD
- 0.78%
- 6M
- 1.01%
- 1Y
- 5.38%
- 3Y*
- 5.82%
- 5Y*
- 0.46%
- 10Y*
- 2.95%
FCBAX
- 1D
- 0.09%
- 1M
- 0.63%
- YTD
- 0.14%
- 6M
- 0.28%
- 1Y
- 4.16%
- 3Y*
- 4.90%
- 5Y*
- -0.23%
- 10Y*
- 2.34%
ACISX vs. FCBAX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ACISX AB Corporate Income Shares | 0.78% | 8.44% | 3.04% | 7.65% | -16.27% | -1.23% | 11.27% | 16.95% | -2.81% | 6.19% |
FCBAX Fidelity Advisor Corporate Bond Fund Class A | 0.14% | 7.51% | 2.21% | 8.10% | -17.32% | -1.85% | 10.46% | 14.11% | -2.90% | 6.47% |
Correlation
The correlation between ACISX and FCBAX is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.96 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.97 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.97 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.95 |
Correlation (All Time) Calculated using the full available price history since Aug 7, 2012 | 0.95 |
The correlation between ACISX and FCBAX has been stable across timeframes, ranging from 0.94 to 0.97 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
ACISX vs. FCBAX — Risk / Return Rank
ACISX
FCBAX
ACISX vs. FCBAX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AB Corporate Income Shares (ACISX) and Fidelity Advisor Corporate Bond Fund Class A (FCBAX). 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.
| ACISX | FCBAX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.30 | ||
| Sortino ratioReturn per unit of downside risk | +0.48 | ||
| Omega ratioGain probability vs. loss probability | 1.25 | 1.19 | +0.06 |
| Calmar ratioReturn relative to maximum drawdown | 1.79 | 1.38 | +0.40 |
| Martin ratioReturn relative to average drawdown | 5.78 | 4.23 | +1.55 |
Loading charts...
Drawdowns
ACISX vs. FCBAX - Drawdown Comparison
The maximum ACISX drawdown since its inception was -22.65%, roughly equal to the maximum FCBAX drawdown of -23.56%. Use the drawdown chart below to compare losses from any high point for ACISX and FCBAX.
Loading charts...
Drawdown Indicators
| ACISX | FCBAX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -22.65% | -23.56% | +0.91% |
Max Drawdown (1Y)Largest decline over 1 year | -3.26% | -3.31% | +0.05% |
Max Drawdown (3Y)Largest decline over 3 years | -6.56% | -6.65% | +0.09% |
Max Drawdown (5Y)Largest decline over 5 years | -22.65% | -23.44% | +0.79% |
Max Drawdown (10Y)Largest decline over 10 years | -22.65% | -23.56% | +0.91% |
Current DrawdownCurrent decline from peak | -1.01% | -3.47% | +2.46% |
Average DrawdownAverage peak-to-trough decline | -4.45% | -4.33% | -0.12% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.01% | 1.08% | -0.07% |
Volatility
ACISX vs. FCBAX - Volatility Comparison
The current volatility for AB Corporate Income Shares (ACISX) is 1.17%, while Fidelity Advisor Corporate Bond Fund Class A (FCBAX) has a volatility of 1.24%. This indicates that ACISX experiences smaller price fluctuations and is considered to be less risky than FCBAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| ACISX | FCBAX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.17% | 1.24% | -0.07% |
Volatility (6M)Calculated over the trailing 6-month period | 3.17% | 3.19% | -0.02% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.24% | 4.25% | -0.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.49% | 6.69% | -0.20% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 6.01% | 5.95% | +0.06% |
ACISX vs. FCBAX - Expense Ratio Comparison
ACISX has a 0.00% expense ratio, which is lower than FCBAX's 0.77% expense ratio.
Dividends
ACISX vs. FCBAX - Dividend Comparison
ACISX's dividend yield for the trailing twelve months is around 5.07%, more than FCBAX's 3.92% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ACISX AB Corporate Income Shares | 5.07% | 5.10% | 4.97% | 3.66% | 3.48% | 3.44% | 5.62% | 4.77% | 3.99% | 3.28% | 3.54% | 3.63% |
FCBAX Fidelity Advisor Corporate Bond Fund Class A | 3.92% | 3.79% | 3.35% | 3.13% | 2.27% | 2.55% | 3.09% | 2.96% | 3.29% | 2.83% | 3.19% | 2.69% |
Frequently Asked Questions
With a correlation of 0.96, ACISX and FCBAX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
FCBAX has higher volatility (1.24%) compared to ACISX (1.17%). In terms of maximum drawdown, ACISX dropped -22.65% vs FCBAX's -23.56%.
ACISX currently has the higher Sharpe Ratio (1.38 vs 1.08), 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.
Find the right allocation for ACISX and FCBAX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer