MFSBvsNBTRETF Comparison
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MFS Active Core Plus Bond ETF (MFSB) and Neuberger Berman Total Return Bond ETF (NBTR) belong to the same industry segment: US Aggregate Bonds. MFSB's top 3 sector exposures are Sovereign, Finance and Industrials. In contrast, NBTR's top sector exposures are Sovereign, Industrials and Finance. MFSB is less expensive with a Total Expense Ratio (TER) of 0.34%, versus 0.94% for NBTR. MFSB is down -0.68% year-to-date (YTD) with +$427M in YTD flows. NBTR performs worse with -1.12% YTD performance, and +$4M in YTD flows. Run a side-by-side ETF comparison of MFSB and NBTR 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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MFSB vs NBTR performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/14/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | MFSB NBTR | -1.10%-1.19% | -1.66%-1.93% | -0.68%-1.12% | +0.01%-0.58% | n/an/a | n/an/a |
| Flows | MFSB NBTR | +$39M+$1M | +$133M+$2M | +$427M+$4M | +$503M+$6M | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MFSB NBTR | +3.48%+3.53% | +3.32%+3.28% | n/an/a | n/an/a |
| Max drawdown | MFSB NBTR | -2.16%-2.36% | -2.56%-2.72% | n/an/a | n/an/a |
| Max drawdown duration | MFSB NBTR | 77d77d | 197d197d | n/an/a | n/an/a |
Trading data
MFSB | NBTR | |
Last sale 9/15/2026 at 1:30 PM | $24.23 | $48.35 |
| Previous close 09/14/2026 | $24.27 | $48.45 |
| Consolidated volume 09/14/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 9/15/2026 at 1:30 PM
Live
Closed
MFSB | NBTR | |
|---|---|---|
| Last price | $24.23 | $48.35 |
| 1D performance | -0.16% | -0.21% |
| AuM | $568.93 M | $55.70 M |
| E/R | 0.34% | 0.94% |
Characteristics
MFSB | NBTR | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | MFS | Neuberger Berman |
| Benchmark | - | - |
| N° of holdings | 236 | 292 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | December 4, 2024 | December 17, 2024 |
| ESG | No | No |
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Exposure
Countries
MFSB
USA
57.02%
Other
42.98%
NBTR
USA
62.82%
Other
37.18%
Sectors
MFSB
Sovereign
26.57%
Finance
20.22%
Industrials
8.04%
Other
45.17%
NBTR
Sovereign
24.99%
Industrials
12.54%
Finance
11.73%
Other
50.74%
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Diversification
MFSB
Total weight of top 15 holdings out of 15
27.06%
NBTR
Total weight of top 15 holdings out of 15
21.49%
Top 15 holdings
Data as of July 31, 2026
MFSB
USA, Bonds 4.625% 15nov2045, USD
8.86%
USA, Bonds 4.625% 15nov2055, USD
4.10%
USA, Notes 3.875% 31jul2030, USD (AB-2030)
4.06%
USA, Notes 4.125% 31oct2029, USD (AF-2029)
2.59%
USA, Bonds 4.625% 15nov2044, USD
0.96%
USA, Bonds 4.875% 15aug2045, USD
0.93%
USA, Bonds 4.5% 15nov2054, USD
0.92%
Boston Properties LP, 5.75% 15jan2035, USD
0.69%
Bank of America Corporation, 5.744% 12feb2036, USD (N)
0.64%
US01F0306864
0.59%
US12570XAQ51
0.57%
USA, Bonds 4.25% 15feb2054, USD
0.56%
Highwoods Realty, 5.35% 15jan2033, USD
0.54%
Boeing, 6.528% 1may2034, USD
0.53%
JP Morgan, 4.946% 22oct2035, USD
0.52%
NBTR
USA, Notes 4.375% 15may2036, USD (C-2036)
2.99%
USA, Notes 3.5% 31jan2028, USD (U-2028)
2.79%
USA, Notes 4.125% 31jul2028, USD (AB-2028)
1.95%
USA, Notes 4.25% 15may2035, USD (C-2035)
1.81%
USA, Notes 3.625% 31dec2030, USD (AH-2030)
1.72%
USA, Notes 3.875% 31mar2028, USD (AZ-2028)
1.53%
USA, Notes 4.25% 30jun2033, USD (M-2033)
1.19%
USA, Bonds 5% 15may2056, USD
1.10%
USA, Notes 4.625% 15feb2035, USD (B-2035)
1.05%
USA, Notes 2.875% 15may2028, USD (C-2028)
0.97%
US13877LAS51
0.93%
Aimco CLO 2017-AA, FRN 20jan2038, USD (ABS, AR2)
0.93%
USA, Notes 4.125% 30jun2031, USD (AA-2031)
0.85%
USA, Bonds 4% 15nov2052, USD
0.85%
US3132DWJR51
0.83%
Frequently asked questions about MFSB and NBTR
How have the MFSB and NBTR ETFs performed in 2026?
As of September 14, 2026, MFSB is down -0.68% year-to-date (YTD), while NBTR has lost -1.12%. That puts MFSB better performer ahead so far this year.
Which ETF is attracting more investor money: MFSB or NBTR?
Year-to-date, the MFSB ETF saw +$427M in flows, compared to +$4M for NBTR.
Which ETF is more volatile: MFSB or NBTR?
Over the past year, MFSB had a volatility of 3.32%, while NBTR experienced 3.28%.
Which ETF is bigger: MFSB or NBTR?
As of September 14, 2026, MFSB holds $568.93 M in assets under management (AUM), while NBTR manages $55.70 M.
What sectors do the MFSB and NBTR ETFs invest in?
MFSB leans toward sectors like Sovereign, Finance and Industrials. Meanwhile, NBTR focuses on Sovereign, Industrials and Finance.
What are the top holdings of the MFSB ETF and NBTR ETF?
MFSB top holdings include USA, Bonds 4.625% 15nov2045, USD, USA, Bonds 4.625% 15nov2055, USD and USA, Notes 3.875% 31jul2030, USD (AB-2030). NBTR holds in its top three: USA, Notes 4.375% 15may2036, USD (C-2036), USA, Notes 3.5% 31jan2028, USD (U-2028) and USA, Notes 4.125% 31jul2028, USD (AB-2028).
Which ETF is more diversified: MFSB or NBTR?
MFSB holds 457 securities with 27.06% of its assets in the top 15. NBTR has 440 securities and a top 15 weight of 21.49%.
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Latest news about MFSB & NBTR
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