FTISX vs. MWNIX

Last updated Jun 23, 2026

FTISX (Fidelity Advisor International Small Cap Fund Class M) and MWNIX (MFS International New Discovery Fund) are both Foreign Small & Mid Cap Equities funds. Over the past 10 years, FTISX returned 8.52%/yr vs 6.48%/yr for MWNIX. Their correlation of 0.89 suggests significant overlap in exposure. FTISX charges 1.57%/yr vs 1.03%/yr for MWNIX.

Performance

FTISX vs. MWNIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Advisor International Small Cap Fund Class M (FTISX) and MFS International New Discovery Fund (MWNIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FTISX achieves a 11.01% return, which is significantly higher than MWNIX's 7.72% return. Over the past 10 years, FTISX has outperformed MWNIX with an annualized return of 8.52%, while MWNIX has yielded a comparatively lower 6.48% annualized return.

FTISX

• 1D: 0.84%
• 1M: 1.38%
• YTD: 11.01%
• 6M: 11.57%
• 1Y: 19.52%
• 3Y*: 13.31%
• 5Y*: 6.49%
• 10Y*: 8.52%

MWNIX

• 1D: 0.47%
• 1M: 1.48%
• YTD: 7.72%
• 6M: 7.82%
• 1Y: 12.59%
• 3Y*: 9.69%
• 5Y*: 3.31%
• 10Y*: 6.48%

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

FTISX vs. MWNIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FTISX Fidelity Advisor International Small Cap Fund Class M	11.01%	24.03%	-0.46%	18.97%	-17.12%	12.83%	9.29%	20.77%	-16.57%	31.41%
MWNIX MFS International New Discovery Fund	7.72%	16.88%	0.90%	13.03%	-18.63%	5.06%	9.98%	22.85%	-10.41%	30.67%

Correlation

The correlation between FTISX and MWNIX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.92
Correlation (10Y) Calculated over the trailing 10-year period	0.91
Correlation (All Time) Calculated using the full available price history since Sep 30, 2002	0.89

The correlation between FTISX and MWNIX has been stable across timeframes, ranging from 0.89 to 0.92 - a consistent structural relationship.

Return for Risk

FTISX vs. MWNIX — Risk / Return Rank

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

FTISX

FTISX Risk / Return Rank: 29
FTISX Sharpe Ratio Rank: 29
FTISX Sortino Ratio Rank: 30
FTISX Omega Ratio Rank: 31
FTISX Calmar Ratio Rank: 25
FTISX Martin Ratio Rank: 28

MWNIX

MWNIX Risk / Return Rank: 13
MWNIX Sharpe Ratio Rank: 14
MWNIX Sortino Ratio Rank: 14
MWNIX Omega Ratio Rank: 14
MWNIX Calmar Ratio Rank: 11
MWNIX Martin Ratio Rank: 13

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.

FTISX vs. MWNIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Advisor International Small Cap Fund Class M (FTISX) and MFS International New Discovery Fund (MWNIX). 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.

	FTISX	MWNIX	Difference
Sharpe ratio: Return per unit of total volatility	1.45	0.98	+0.47
Sortino ratio: Return per unit of downside risk	2.13	1.46	+0.67
Omega ratio: Gain probability vs. loss probability	1.28	1.19	+0.09
Calmar ratio: Return relative to maximum drawdown	1.74	0.99	+0.75
Martin ratio: Return relative to average drawdown	6.09	3.36	+2.73

FTISX vs. MWNIX - Sharpe Ratio Comparison

The current FTISX Sharpe Ratio is 1.45, which is higher than the MWNIX Sharpe Ratio of 0.98. The chart below compares the historical Sharpe Ratios of FTISX and MWNIX, 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

FTISX vs. MWNIX - Drawdown Comparison

The maximum FTISX drawdown since its inception was -61.12%, roughly equal to the maximum MWNIX drawdown of -58.38%. Use the drawdown chart below to compare losses from any high point for FTISX and MWNIX.

Drawdown Indicators

	FTISX	MWNIX	Difference
Max Drawdown Largest peak-to-trough decline	-61.12%	-58.38%	-2.74%
Max Drawdown (1Y) Largest decline over 1 year	-10.75%	-11.78%	+1.03%
Max Drawdown (3Y) Largest decline over 3 years	-12.95%	-15.12%	+2.17%
Max Drawdown (5Y) Largest decline over 5 years	-31.45%	-33.67%	+2.22%
Max Drawdown (10Y) Largest decline over 10 years	-39.55%	-34.72%	-4.83%
Current Drawdown Current decline from peak	-0.15%	-0.90%	+0.75%
Average Drawdown Average peak-to-trough decline	-10.96%	-9.56%	-1.40%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.06%	3.47%	-0.41%

Volatility

FTISX vs. MWNIX - Volatility Comparison

Fidelity Advisor International Small Cap Fund Class M (FTISX) has a higher volatility of 5.03% compared to MFS International New Discovery Fund (MWNIX) at 4.15%. This indicates that FTISX's price experiences larger fluctuations and is considered to be riskier than MWNIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FTISX	MWNIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.03%	4.15%	+0.88%
Volatility (6M) Calculated over the trailing 6-month period	10.94%	10.06%	+0.88%
Volatility (1Y) Calculated over the trailing 1-year period	12.87%	11.93%	+0.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.68%	13.26%	+0.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.07%	13.99%	+0.08%

FTISX vs. MWNIX - Expense Ratio Comparison

FTISX has a 1.57% expense ratio, which is higher than MWNIX's 1.03% expense ratio.

Dividends

FTISX vs. MWNIX - Dividend Comparison

FTISX's dividend yield for the trailing twelve months is around 2.94%, less than MWNIX's 3.01% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FTISX Fidelity Advisor International Small Cap Fund Class M	2.94%	3.26%	2.24%	1.40%	0.13%	6.94%	0.34%	1.81%	5.50%	2.52%	2.08%	2.86%
MWNIX MFS International New Discovery Fund	3.01%	3.24%	7.61%	4.05%	5.68%	5.06%	3.90%	2.67%	6.68%	1.63%	1.09%	1.12%

Frequently Asked Questions

Can I hold both FTISX and MWNIX in my portfolio?

With a correlation of 0.91, FTISX and MWNIX 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.

Which is riskier, FTISX or MWNIX?

FTISX has higher volatility (5.03%) compared to MWNIX (4.15%). In terms of maximum drawdown, FTISX dropped -61.12% vs MWNIX's -58.38%.

Which has better risk-adjusted returns?

FTISX currently has the higher Sharpe Ratio (1.45 vs 0.98), 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.