OIGAX vs. FSKLX

Last updated Jun 24, 2026

OIGAX (Invesco Oppenheimer International Growth Fund Class A) and FSKLX (Fidelity SAI International Low Volatility Index Fund) are both Foreign Large Cap Equities funds. Over the past 10 years, OIGAX returned 6.85%/yr vs 6.09%/yr for FSKLX. A 0.80 correlation means they provide meaningful diversification when combined. OIGAX charges 1.10%/yr vs 0.17%/yr for FSKLX.

Performance

OIGAX vs. FSKLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco Oppenheimer International Growth Fund Class A (OIGAX) and Fidelity SAI International Low Volatility Index Fund (FSKLX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OIGAX achieves a 6.56% return, which is significantly higher than FSKLX's 3.49% return. Over the past 10 years, OIGAX has outperformed FSKLX with an annualized return of 6.85%, while FSKLX has yielded a comparatively lower 6.09% annualized return.

OIGAX

• 1D: 0.26%
• 1M: 6.48%
• YTD: 6.56%
• 6M: 6.15%
• 1Y: 12.41%
• 3Y*: 9.22%
• 5Y*: 1.83%
• 10Y*: 6.85%

FSKLX

• 1D: -0.37%
• 1M: -2.56%
• YTD: 3.49%
• 6M: 3.17%
• 1Y: 9.80%
• 3Y*: 10.62%
• 5Y*: 5.26%
• 10Y*: 6.09%

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

OIGAX vs. FSKLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OIGAX Invesco Oppenheimer International Growth Fund Class A	6.56%	15.86%	-1.85%	20.93%	-27.31%	10.38%	22.11%	28.62%	-19.53%	26.61%
FSKLX Fidelity SAI International Low Volatility Index Fund	3.49%	21.95%	1.20%	13.84%	-13.48%	9.91%	-1.57%	16.12%	-4.88%	21.40%

Correlation

The correlation between OIGAX and FSKLX 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	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.76
Correlation (10Y) Calculated over the trailing 10-year period	0.78
Correlation (All Time) Calculated using the full available price history since Jun 5, 2015	0.80

Over the past year, the correlation between OIGAX and FSKLX has dropped to 0.59 - well below their long-term average of 0.80, suggesting their price drivers have been diverging.

Return for Risk

OIGAX vs. FSKLX — Risk / Return Rank

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

OIGAX

OIGAX Risk / Return Rank: 10
OIGAX Sharpe Ratio Rank: 10
OIGAX Sortino Ratio Rank: 11
OIGAX Omega Ratio Rank: 10
OIGAX Calmar Ratio Rank: 10
OIGAX Martin Ratio Rank: 11

FSKLX

FSKLX Risk / Return Rank: 14
FSKLX Sharpe Ratio Rank: 15
FSKLX Sortino Ratio Rank: 15
FSKLX Omega Ratio Rank: 15
FSKLX Calmar Ratio Rank: 14
FSKLX Martin Ratio Rank: 12

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.

OIGAX vs. FSKLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco Oppenheimer International Growth Fund Class A (OIGAX) and Fidelity SAI International Low Volatility Index Fund (FSKLX). 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.

	OIGAX	FSKLX	Difference
Sharpe ratio: Return per unit of total volatility	0.77	1.00	-0.23
Sortino ratio: Return per unit of downside risk	1.18	1.49	-0.31
Omega ratio: Gain probability vs. loss probability	1.15	1.18	-0.04
Calmar ratio: Return relative to maximum drawdown	0.92	1.23	-0.31
Martin ratio: Return relative to average drawdown	3.01	3.10	-0.09

OIGAX vs. FSKLX - Sharpe Ratio Comparison

The current OIGAX Sharpe Ratio is 0.77, which is comparable to the FSKLX Sharpe Ratio of 1.00. The chart below compares the historical Sharpe Ratios of OIGAX and FSKLX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

OIGAX vs. FSKLX - Drawdown Comparison

The maximum OIGAX drawdown since its inception was -67.43%, which is greater than FSKLX's maximum drawdown of -27.26%. Use the drawdown chart below to compare losses from any high point for OIGAX and FSKLX.

Drawdown Indicators

	OIGAX	FSKLX	Difference
Max Drawdown Largest peak-to-trough decline	-67.43%	-27.26%	-40.17%
Max Drawdown (1Y) Largest decline over 1 year	-14.61%	-8.64%	-5.97%
Max Drawdown (3Y) Largest decline over 3 years	-19.51%	-11.59%	-7.92%
Max Drawdown (5Y) Largest decline over 5 years	-40.41%	-24.99%	-15.42%
Max Drawdown (10Y) Largest decline over 10 years	-40.41%	-27.26%	-13.15%
Current Drawdown Current decline from peak	0.00%	-7.17%	+7.17%
Average Drawdown Average peak-to-trough decline	-17.28%	-5.14%	-12.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.45%	3.40%	+1.05%

Volatility

OIGAX vs. FSKLX - Volatility Comparison

Invesco Oppenheimer International Growth Fund Class A (OIGAX) has a higher volatility of 7.46% compared to Fidelity SAI International Low Volatility Index Fund (FSKLX) at 2.50%. This indicates that OIGAX's price experiences larger fluctuations and is considered to be riskier than FSKLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OIGAX	FSKLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.46%	2.50%	+4.96%
Volatility (6M) Calculated over the trailing 6-month period	15.04%	7.99%	+7.05%
Volatility (1Y) Calculated over the trailing 1-year period	17.52%	10.59%	+6.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.12%	11.52%	+7.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.58%	11.91%	+6.67%

OIGAX vs. FSKLX - Expense Ratio Comparison

OIGAX has a 1.10% expense ratio, which is higher than FSKLX's 0.17% expense ratio.

Dividends

OIGAX vs. FSKLX - Dividend Comparison

OIGAX's dividend yield for the trailing twelve months is around 41.33%, more than FSKLX's 2.51% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FSKLX Fidelity SAI International Low Volatility Index Fund	2.51%	2.59%	2.09%	2.31%	2.01%	2.42%	1.32%	6.06%	2.64%	1.69%	2.85%	1.10%
OIGAX Invesco Oppenheimer International Growth Fund Class A	41.33%	44.04%	11.27%	11.59%	0.00%	13.52%	14.72%	0.84%	1.08%	0.59%	1.02%	0.87%

Frequently Asked Questions

Can I hold both OIGAX and FSKLX in my portfolio?

OIGAX and FSKLX 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, OIGAX or FSKLX?

OIGAX has higher volatility (7.46%) compared to FSKLX (2.50%). In terms of maximum drawdown, OIGAX dropped -67.43% vs FSKLX's -27.26%.

Which has better risk-adjusted returns?

FSKLX currently has the higher Sharpe Ratio (1.00 vs 0.77), 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.