Keep tabs on your favorite ETFs with a personalized weekly tracker. Create a Watchlist now →
MFSIvsEFFIETF Comparison
Harbor Osmosis International Resource Efficient ETF
MFS Active International ETF (MFSI) belongs to the Uncategorized Equities segment. Harbor Osmosis International Resource Efficient ETF (EFFI) is part of the DM Large & Mid Cap segment. MFSI's top 3 sector exposures are Financials, Industrials and Information Technology. In contrast, EFFI's top sector exposures are Financials, Industrials and Health Care. MFSI is more expensive with a Total Expense Ratio (TER) of 0.59%, versus 0.55% for EFFI. MFSI is up 0.16% year-to-date (YTD) with +$165M in YTD flows. EFFI performs worse with -0.37% YTD performance, and +$1M in YTD flows. Run a side-by-side ETF comparison of MFSI and EFFI below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
MFSI vs EFFI performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MFSI EFFI | -4.21%-4.26% | +1.70%+0.95% | +0.16%-0.37% | +19.13%+22.98% | n/an/a | n/an/a |
| Flows | MFSI EFFI | +$94M+$924K | +$194M+$1M | +$165M+$1M | +$653M+$2M | -- | -- |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MFSI EFFI | +12.86%+13.70% | +13.54%+15.51% | n/an/a | n/an/a |
| Max drawdown | MFSI EFFI | -7.14%-7.44% | -13.42%-13.94% | n/an/a | n/an/a |
| Max drawdown duration | MFSI EFFI | 10d10d | 43d37d | n/an/a | n/an/a |
MFSI | EFFI | |
Last sale 3/13/2026 at 1:30 PM | $29.71 | $23.48 |
| Previous close 03/12/2026 | $30.01 | $23.81 |
| Consolidated volume 03/12/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
MFSI | EFFI | |
|---|---|---|
| Last price | $29.71 | $23.48 |
| 1D performance | -1.00% | -1.37% |
| AuM | $876.46 M | $134.19 M |
| E/R | 0.59% | 0.55% |
MFSI | EFFI | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | MFS | Harbor Capital |
| Benchmark | - | - |
| N° of holdings | 81 | 76 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | December 4, 2024 | December 10, 2024 |
| ESG | No | Yes |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the MFSI and EFFI ETFs performed in 2026?
As of March 11, 2026, MFSI is up 0.16% year-to-date (YTD), while EFFI has lost -0.37%. That puts MFSI better performer ahead so far this year.
Which ETF is attracting more investor money: MFSI or EFFI?
Year-to-date, the MFSI ETF saw +$165M in flows, compared to +$1M for EFFI.
Which ETF is more volatile: MFSI or EFFI?
Over the past year, MFSI had a volatility of 13.54%, while EFFI experienced 15.51%.
Which ETF is bigger: MFSI or EFFI?
As of March 11, 2026, MFSI holds $876.46 M in assets under management (AUM), while EFFI manages $134.19 M.
What sectors do the MFSI and EFFI ETFs invest in?
MFSI leans toward sectors like Financials, Industrials and Information Technology. Meanwhile, EFFI focuses on Financials, Industrials and Health Care.
What are the top holdings of the MFSI ETF and EFFI ETF?
MFSI top holdings include US8740391003, SAMSUNG ELECTR and HITACHI. EFFI holds in its top three: L OREAL S.A., MERCEDES-BENZ GROUP AG and TOYOTA TSUSHO.
Which ETF is more diversified: MFSI or EFFI?
MFSI holds 90 securities with 33.12% of its assets in the top 15. EFFI has 77 securities and a top 15 weight of 44.12%.
What's the Fund | MFS Active International ETF (MFSI)
Beyond Borders: Harbor Launches Two New Global Equity ETFs
Active Trader Report: Use of Leveraged & Inverse ETFs Way Up
Direxion partnered with Compound Insights and Vanda to explore what’s driving the evolution of active trading — and how active traders are using leveraged and inverse funds across equities, single stocks, commodities, and volatility.
