MMIDvsAEMCETF Comparison
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MFS Active Mid Cap ETF (MMID) and Harbor AlphaEdge Mid Cap Core ETF (AEMC) belong to the same industry segment: Uncategorized Equities. Both ETFs have the same top 3 sector exposures: Finance, Technology and Industrials. MMID is more expensive with a Total Expense Ratio (TER) of 0.59%, versus 0.35% for AEMC. Run a side-by-side ETF comparison of MMID and AEMC below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
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MMID vs AEMC performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/30/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MMID AEMC | +6.93%+2.46% | +2.45%n/a | +10.81%n/a | +13.20%n/a | n/an/a | n/an/a |
| Flows | MMID AEMC | +$788K- | +$788K- | +$2M- | +$7M- | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MMID AEMC | +11.07%n/a | +12.51%n/a | n/an/a | n/an/a |
| Max drawdown | MMID AEMC | -7.95%n/a | -7.98%n/a | n/an/a | n/an/a |
| Max drawdown duration | MMID AEMC | 78dn/a | 136dn/a | n/an/a | n/an/a |
Trading data
MMID | AEMC | |
Last sale 11/2/2026 at 2:30 PM | $27.82 | |
| Previous close 10/30/2026 | $27.47 | |
| Consolidated volume 10/30/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 11/2/2026 at 2:30 PM
Live
Closed
MMID | AEMC | |
|---|---|---|
| Last price | $27.82 | – |
| 1D performance | +1.27% | – |
| AuM | $37.37 M | $2.00 M |
| E/R | 0.59% | 0.35% |
Characteristics
MMID | AEMC | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | MFS | Harbor Capital |
| Benchmark | - | - |
| N° of holdings | 104 | 110 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 24, 2025 | August 27, 2026 |
| ESG | No | No |
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Exposure
Countries
MMID
USA
85.47%
Other
14.53%
AEMC
USA
95.21%
Other
4.79%
Sectors
MMID
Finance
19.84%
Technology
14.77%
Industrials
14.5%
Healthcare
12.53%
Non-Energy Materi.
7.24%
Other
31.12%
AEMC
Finance
19.51%
Technology
19.05%
Industrials
16.72%
Healthcare
12.98%
Energy
9.01%
Non-Energy Materi.
8.63%
Other
14.11%
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Diversification
MMID
Total weight of top 15 holdings out of 15
22.5%
AEMC
Total weight of top 15 holdings out of 15
36.5%
Top 15 holdings
Data as of September 30, 2026
MMID
Waters Corp.
1.85%
Agilent Technologies, Inc.
1.77%
Global Payments, Inc.
1.76%
Cheniere Energy, Inc.
1.67%
Becton, Dickinson & Co.
1.64%
Diamondback Energy, Inc.
1.57%
Westinghouse Air Brake Technologies Corp.
1.55%
W.W. Grainger, Inc.
1.45%
Valero Energy Corp.
1.42%
STERIS Plc (Ireland)
1.37%
Snowflake, Inc.
1.33%
Microchip Technology, Inc.
1.30%
M&T Bank Corp.
1.27%
nVent Electric Plc
1.27%
Permian Resources Corp.
1.27%
AEMC
Marathon Petroleum Corp.
4.45%
Comfort Systems USA, Inc.
3.08%
Ameriprise Financial, Inc.
2.95%
IDEX Corp.
2.76%
NetApp, Inc.
2.67%
State Street Corp.
2.55%
Snap-On, Inc.
2.44%
AMETEK, Inc.
2.12%
Crown Holdings, Inc.
2.11%
United Therapeutics Corp.
2.05%
Chemed Corp.
2.05%
News Corp.
1.91%
Manhattan Associates, Inc.
1.83%
Target Corp.
1.79%
Garmin Ltd.
1.73%
Frequently asked questions about MMID and AEMC
Which ETF is bigger: MMID or AEMC?
As of October 30, 2026, MMID holds $37.37 M in assets under management (AUM), while AEMC manages $2.00 M.
What sectors do the MMID and AEMC ETFs invest in?
MMID leans toward sectors like Finance, Technology and Industrials. Meanwhile, AEMC focuses on Finance, Technology and Industrials.
What are the top holdings of the MMID ETF and AEMC ETF?
MMID top holdings include Waters Corp., Agilent Technologies, Inc. and Global Payments, Inc.. AEMC holds in its top three: Marathon Petroleum Corp., Comfort Systems USA, Inc. and Ameriprise Financial, Inc..
Which ETF is more diversified: MMID or AEMC?
MMID holds 104 securities with 22.5% of its assets in the top 15. AEMC has 110 securities and a top 15 weight of 36.5%.
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