MMIDvsBKMCETF Comparison
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MFS Active Mid Cap ETF (MMID) belongs to the Uncategorized Equities segment. BNY Mellon US Mid Cap Core Equity ETF (BKMC) is part of the US Mid Cap segment. MMID's top 3 sector exposures are Finance, Technology and Industrials. In contrast, BKMC's top sector exposures are Finance, Industrials and Technology. MMID is more expensive with a Total Expense Ratio (TER) of 0.59%, versus 0.04% for BKMC. MMID is up 10.81% year-to-date (YTD) with +$2M in YTD flows. BKMC performs worse with 9.43% YTD performance, and -$3M in YTD flows. Run a side-by-side ETF comparison of MMID and BKMC 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 BKMC 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 BKMC | +6.93%+2.02% | +2.45%-2.11% | +10.81%+9.43% | +13.20%+11.40% | n/a+63.38% | n/a+33.78% |
| Flows | MMID BKMC | +$788K-$2M | +$788K+$15M | +$2M-$3M | +$7M+$1M | -+$40M | -+$428M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MMID BKMC | +11.07%+12.26% | +12.51%+14.93% | n/a+17.50% | n/a+19.20% |
| Max drawdown | MMID BKMC | -7.95%-8.59% | -7.98%-9.70% | n/a-23.71% | n/a-25.02% |
| Max drawdown duration | MMID BKMC | 78d75d | 136d49d | n/a284d | n/a827d |
Trading data
MMID | BKMC | |
Last sale 11/2/2026 at 2:30 PM | $27.82 | $39.49 |
| Previous close 10/30/2026 | $27.47 | $39.24 |
| Consolidated volume 10/30/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of October 30, 2026
1-year trailing difference
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MMID
is actively managed and doesn’t replicate an indexMMID | BKMC | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 11/2/2026 at 2:30 PM
Live
Closed
MMID | BKMC | |
|---|---|---|
| Last price | $27.82 | $39.49 |
| 1D performance | +1.27% | +0.63% |
| AuM | $37.37 M | $647.96 M |
| E/R | 0.59% | 0.04% |
Characteristics
MMID | BKMC | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | MFS | BNY Mellon |
| Benchmark | - | Solactive GBS United States 400 Index |
| N° of holdings | 104 | 391 |
| Asset class | - | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | September 24, 2025 | April 7, 2020 |
| ESG | No | No |
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Exposure
Countries
MMID
USA
85.47%
Other
14.53%
BKMC
USA
94.71%
Other
5.29%
Sectors
MMID
Finance
19.84%
Technology
14.77%
Industrials
14.5%
Healthcare
12.53%
Non-Energy Materi.
7.24%
Other
31.12%
BKMC
Finance
22.07%
Industrials
16.56%
Technology
14.98%
Healthcare
13.64%
Non-Energy Materi.
8.53%
Other
24.22%
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Diversification
MMID
Total weight of top 15 holdings out of 15
22.5%
BKMC
Total weight of top 15 holdings out of 15
7.58%
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%
BKMC
Guardant Health, Inc.
0.60%
Tenet Healthcare Corp.
0.58%
US Foods Holding Corp.
0.55%
Viatris, Inc.
0.54%
Roku, Inc.
0.54%
Coeur Mining, Inc.
0.52%
Snap-On, Inc.
0.50%
TD SYNNEX Corp.
0.49%
MACOM Technology Solutions Holdings, Inc.
0.49%
ITT, Inc.
0.47%
Zebra Technologies Corp.
0.46%
CF Industries Holdings, Inc.
0.46%
East West Bancorp, Inc.
0.46%
Lattice Semiconductor Corp.
0.46%
IDEX Corp.
0.46%
Frequently asked questions about MMID and BKMC
How have the MMID and BKMC ETFs performed in 2026?
As of October 30, 2026, MMID is up 10.81% year-to-date (YTD), while BKMC has returned 9.43%. That puts MMID better performer ahead so far this year.
Which ETF is attracting more investor money: MMID or BKMC?
Year-to-date, the MMID ETF saw +$2M in flows, compared to -$3M for BKMC.
Which ETF is more volatile: MMID or BKMC?
Over the past year, MMID had a volatility of 12.51%, while BKMC experienced 14.93%.
Which ETF is bigger: MMID or BKMC?
As of October 30, 2026, MMID holds $37.37 M in assets under management (AUM), while BKMC manages $647.96 M.
What sectors do the MMID and BKMC ETFs invest in?
MMID leans toward sectors like Finance, Technology and Industrials. Meanwhile, BKMC focuses on Finance, Industrials and Technology.
What are the top holdings of the MMID ETF and BKMC ETF?
MMID top holdings include Waters Corp., Agilent Technologies, Inc. and Global Payments, Inc.. BKMC holds in its top three: Guardant Health, Inc., Tenet Healthcare Corp. and US Foods Holding Corp..
Which ETF is more diversified: MMID or BKMC?
MMID holds 104 securities with 22.5% of its assets in the top 15. BKMC has 395 securities and a top 15 weight of 7.58%.
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