FZABX vs. FAOSX

Last updated Jun 4, 2026

FZABX (Fidelity Advisor Diversified International Fund Class Z) and FAOSX (Fidelity Advisor Overseas Fund Class Z) are both Foreign Large Cap Equities funds from Fidelity. Over the past 5 years, FZABX returned 7.73%/yr vs 3.79%/yr for FAOSX. Their correlation of 0.94 suggests significant overlap in exposure. FZABX charges 0.76%/yr vs 1.02%/yr for FAOSX.

Performance

FZABX vs. FAOSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor Diversified International Fund Class Z (FZABX) and Fidelity Advisor Overseas Fund Class Z (FAOSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

FZABX

• 1D: 0.70%
• 1M: 5.51%
• YTD: 11.58%
• 6M: 14.25%
• 1Y: 22.80%
• 3Y*: 16.91%
• 5Y*: 7.73%
• 10Y*: 9.58%

FAOSX

• 1D: 0.00%
• 1M: 0.00%
• YTD: 0.00%
• 6M: 0.00%
• 1Y: -1.63%
• 3Y*: 8.88%
• 5Y*: 3.79%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

FZABX vs. FAOSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FZABX Fidelity Advisor Diversified International Fund Class Z	11.58%	27.71%	6.59%	17.56%	-23.58%	13.11%	19.79%	29.99%	-15.23%	21.22%
FAOSX Fidelity Advisor Overseas Fund Class Z	0.00%	15.36%	5.06%	20.52%	-24.31%	19.42%	15.17%	27.96%	-14.73%	26.25%

Correlation

The correlation between FZABX and FAOSX is 0.59, 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	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (All Time) Calculated using the full available price history since Feb 2, 2017	0.94

Over the past year, the correlation between FZABX and FAOSX has dropped to 0.59 - well below their long-term average of 0.94, suggesting their price drivers have been diverging.

Return for Risk

FZABX vs. FAOSX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

FZABX

FZABX Risk / Return Rank: 23
FZABX Sharpe Ratio Rank: 21
FZABX Sortino Ratio Rank: 21
FZABX Omega Ratio Rank: 21
FZABX Calmar Ratio Rank: 23
FZABX Martin Ratio Rank: 30

FAOSX

FAOSX Risk / Return Rank: 1
FAOSX Sharpe Ratio Rank: 2
FAOSX Sortino Ratio Rank: 2
FAOSX Omega Ratio Rank: 1
FAOSX Calmar Ratio Rank: 1
FAOSX Martin Ratio Rank: 2

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

FZABX vs. FAOSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor Diversified International Fund Class Z (FZABX) and Fidelity Advisor Overseas Fund Class Z (FAOSX). 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.

	FZABX	FAOSX	Difference
Sharpe ratio: Return per unit of total volatility	1.32	-0.27	+1.59
Sortino ratio: Return per unit of downside risk	1.93	-0.31	+2.24
Omega ratio: Gain probability vs. loss probability	1.24	0.95	+0.29
Calmar ratio: Return relative to maximum drawdown	1.78	-0.34	+2.12
Martin ratio: Return relative to average drawdown	6.97	-0.59	+7.55
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FZABX vs. FAOSX - Sharpe Ratio Comparison

The current FZABX Sharpe Ratio is 1.32, which is higher than the FAOSX Sharpe Ratio of -0.27. The chart below compares the historical Sharpe Ratios of FZABX and FAOSX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FZABX	FAOSX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.32	-0.27	+1.59
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.45	0.23	+0.22
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.56	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	0.50	+0.03

Drawdowns

FZABX vs. FAOSX - Drawdown Comparison

The maximum FZABX drawdown since its inception was -35.21%, roughly equal to the maximum FAOSX drawdown of -36.24%. Use the drawdown chart below to compare losses from any high point for FZABX and FAOSX.

Drawdown Indicators

	FZABX	FAOSX	Difference
Max Drawdown Largest peak-to-trough decline	-35.21%	-36.24%	+1.03%
Max Drawdown (1Y) Largest decline over 1 year	-12.55%	-7.26%	-5.29%
Max Drawdown (3Y) Largest decline over 3 years	-14.65%	-13.96%	-0.69%
Max Drawdown (5Y) Largest decline over 5 years	-35.21%	-36.24%	+1.03%
Max Drawdown (10Y) Largest decline over 10 years	-35.21%	—	—
Current Drawdown Current decline from peak	0.00%	-5.86%	+5.86%
Average Drawdown Average peak-to-trough decline	-7.57%	-7.93%	+0.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.20%	3.97%	-0.77%

Volatility

FZABX vs. FAOSX - Volatility Comparison

Fidelity Advisor Diversified International Fund Class Z (FZABX) has a higher volatility of 6.08% compared to Fidelity Advisor Overseas Fund Class Z (FAOSX) at 0.00%. This indicates that FZABX's price experiences larger fluctuations and is considered to be riskier than FAOSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FZABX	FAOSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.08%	0.00%	+6.08%
Volatility (6M) Calculated over the trailing 6-month period	14.33%	4.08%	+10.25%
Volatility (1Y) Calculated over the trailing 1-year period	16.95%	9.18%	+7.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.13%	16.72%	+0.41%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.08%	16.68%	+0.40%

FZABX vs. FAOSX - Expense Ratio Comparison

FZABX has a 0.76% expense ratio, which is lower than FAOSX's 1.02% expense ratio.

Dividends

FZABX vs. FAOSX - Dividend Comparison

FZABX's dividend yield for the trailing twelve months is around 12.60%, more than FAOSX's 8.67% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FAOSX Fidelity Advisor Overseas Fund Class Z	8.67%	8.67%	1.80%	1.12%	0.85%	2.07%	0.00%	1.70%	5.30%	3.93%	0.00%	0.00%
FZABX Fidelity Advisor Diversified International Fund Class Z	12.60%	14.06%	6.53%	4.41%	2.40%	10.92%	0.15%	1.64%	5.22%	0.29%	1.70%	1.08%

Frequently Asked Questions

Can I hold both FZABX and FAOSX in my portfolio?

FZABX and FAOSX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FZABX or FAOSX?

FZABX has higher volatility (6.08%) compared to FAOSX (0.00%). In terms of maximum drawdown, FZABX dropped -35.21% vs FAOSX's -36.24%.

Which has better risk-adjusted returns?

FZABX currently has the higher Sharpe Ratio (1.32 vs -0.27), 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.