MWOFX vs. IYW
MWOFX (MFS Global Growth Fund) and IYW (iShares U.S. Technology ETF) are both funds - MWOFX is a Global Equities fund managed by MFS, while IYW is a Technology Equities fund tracking the Russell 1000 Technology RIC 22.5/45 Capped Index. Over the past 10 years, MWOFX returned 10.44%/yr vs 25.87%/yr for IYW. A 0.78 correlation means they provide meaningful diversification when combined. MWOFX charges 1.22%/yr vs 0.38%/yr for IYW.
Performance
MWOFX vs. IYW - Performance Comparison
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Returns By Period
In the year-to-date period, MWOFX achieves a -5.85% return, which is significantly lower than IYW's 21.37% return. Over the past 10 years, MWOFX has underperformed IYW with an annualized return of 10.44%, while IYW has yielded a comparatively higher 25.87% annualized return.
MWOFX
- 1D
- -1.29%
- 1M
- -2.16%
- YTD
- -5.85%
- 6M
- -6.63%
- 1Y
- -1.61%
- 3Y*
- 6.17%
- 5Y*
- 3.06%
- 10Y*
- 10.44%
IYW
- 1D
- -0.48%
- 1M
- 0.20%
- YTD
- 21.37%
- 6M
- 19.55%
- 1Y
- 43.82%
- 3Y*
- 31.88%
- 5Y*
- 20.23%
- 10Y*
- 25.87%
MWOFX vs. IYW - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MWOFX MFS Global Growth Fund | -5.85% | 7.17% | 10.68% | 20.63% | -19.28% | 18.33% | 20.23% | 35.37% | -4.94% | 31.13% |
IYW iShares U.S. Technology ETF | 21.37% | 25.38% | 30.25% | 65.44% | -34.83% | 35.44% | 47.45% | 46.64% | -0.93% | 36.60% |
Correlation
The correlation between MWOFX and IYW is 0.65, 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 | 0.65 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.75 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.82 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.81 |
Correlation (All Time) Calculated using the full available price history since May 19, 2000 | 0.78 |
The correlation between MWOFX and IYW shifts across timeframes, from 0.65 (1 year) to 0.82 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
MWOFX vs. IYW — Risk / Return Rank
MWOFX
IYW
MWOFX vs. IYW - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for MFS Global Growth Fund (MWOFX) and iShares U.S. Technology ETF (IYW). 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.
| MWOFX | IYW | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.00 | ||
| Sortino ratioReturn per unit of downside risk | -2.49 | ||
| Omega ratioGain probability vs. loss probability | 1.01 | 1.34 | -0.33 |
| Calmar ratioReturn relative to maximum drawdown | -0.03 | 2.47 | -2.50 |
| Martin ratioReturn relative to average drawdown | -0.07 | 7.86 | -7.93 |
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Drawdowns
MWOFX vs. IYW - Drawdown Comparison
The maximum MWOFX drawdown since its inception was -56.10%, smaller than the maximum IYW drawdown of -81.90%. Use the drawdown chart below to compare losses from any high point for MWOFX and IYW.
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Drawdown Indicators
| MWOFX | IYW | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -56.10% | -81.90% | +25.80% |
Max Drawdown (1Y)Largest decline over 1 year | -13.82% | -17.81% | +3.99% |
Max Drawdown (3Y)Largest decline over 3 years | -16.45% | -26.47% | +10.02% |
Max Drawdown (5Y)Largest decline over 5 years | -27.64% | -39.44% | +11.80% |
Max Drawdown (10Y)Largest decline over 10 years | -31.68% | -39.44% | +7.76% |
Current DrawdownCurrent decline from peak | -8.11% | -6.80% | -1.31% |
Average DrawdownAverage peak-to-trough decline | -11.90% | -34.59% | +22.69% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.65% | 5.59% | -0.94% |
Volatility
MWOFX vs. IYW - Volatility Comparison
The current volatility for MFS Global Growth Fund (MWOFX) is 4.33%, while iShares U.S. Technology ETF (IYW) has a volatility of 11.14%. This indicates that MWOFX experiences smaller price fluctuations and is considered to be less risky than IYW based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MWOFX | IYW | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.33% | 11.14% | -6.81% |
Volatility (6M)Calculated over the trailing 6-month period | 10.07% | 18.38% | -8.31% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.48% | 22.33% | -9.85% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 15.88% | 26.24% | -10.36% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 16.57% | 25.25% | -8.68% |
MWOFX vs. IYW - Expense Ratio Comparison
MWOFX has a 1.22% expense ratio, which is higher than IYW's 0.38% expense ratio.
Dividends
MWOFX vs. IYW - Dividend Comparison
MWOFX's dividend yield for the trailing twelve months is around 5.76%, more than IYW's 0.11% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IYW iShares U.S. Technology ETF | 0.11% | 0.14% | 0.21% | 0.34% | 0.50% | 0.31% | 0.56% | 0.72% | 0.92% | 0.82% | 1.14% | 1.12% |
MWOFX MFS Global Growth Fund | 5.76% | 5.42% | 5.14% | 2.09% | 3.60% | 6.25% | 3.13% | 1.86% | 5.00% | 3.43% | 1.68% | 6.08% |
Frequently Asked Questions
MWOFX and IYW have a correlation of 0.65, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IYW has higher volatility (11.14%) compared to MWOFX (4.33%). In terms of maximum drawdown, MWOFX dropped -56.10% vs IYW's -81.90%.
IYW currently has the higher Sharpe Ratio (1.98 vs -0.03), 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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