MFSBvsTCPBETF Comparison
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MFS Active Core Plus Bond ETF (MFSB) and Thrivent Core Plus Bond ETF (TCPB) belong to the same industry segment: US Aggregate Bonds. Both ETFs have the same top 3 sector exposures: Sovereign, Finance and Industrials. MFSB is less expensive with a Total Expense Ratio (TER) of 0.34%, versus 0.39% for TCPB. MFSB is down -0.68% year-to-date (YTD) with +$427M in YTD flows. TCPB performs worse with -1.14% YTD performance, and +$155M in YTD flows. Run a side-by-side ETF comparison of MFSB and TCPB 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 TCPB 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 TCPB | -1.10%-1.26% | -1.66%-1.90% | -0.68%-1.14% | +0.01%-0.51% | n/an/a | n/an/a |
| Flows | MFSB TCPB | +$39M+$16M | +$133M+$46M | +$427M+$155M | +$503M+$257M | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | MFSB TCPB | +3.48%+3.67% | +3.32%+3.53% | n/an/a | n/an/a |
| Max drawdown | MFSB TCPB | -2.16%-2.43% | -2.56%-2.87% | n/an/a | n/an/a |
| Max drawdown duration | MFSB TCPB | 77d77d | 197d197d | n/an/a | n/an/a |
Trading data
MFSB | TCPB | |
Last sale 9/15/2026 at 1:30 PM | $24.23 | $49.19 |
| Previous close 09/14/2026 | $24.27 | $49.21 |
| 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 | TCPB | |
|---|---|---|
| Last price | $24.23 | $49.19 |
| 1D performance | -0.16% | -0.05% |
| AuM | $568.93 M | $480.66 M |
| E/R | 0.34% | 0.39% |
Characteristics
MFSB | TCPB | |
|---|---|---|
| Management strategy | Active | Active |
| Provider | MFS | Thrivent Asset Management |
| Benchmark | - | - |
| N° of holdings | 236 | 394 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | December 4, 2024 | February 19, 2025 |
| ESG | No | No |
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Exposure
Countries
MFSB
USA
57.02%
Other
42.98%
TCPB
USA
56.91%
Other
43.09%
Sectors
MFSB
Sovereign
26.57%
Finance
20.22%
Industrials
8.04%
Other
45.17%
TCPB
Sovereign
21.3%
Finance
18.59%
Industrials
7.33%
Other
52.79%
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Diversification
MFSB
Total weight of top 15 holdings out of 15
27.06%
TCPB
Total weight of top 15 holdings out of 15
24.83%
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%
TCPB
USA, Bonds 4.5% 15nov2054, USD
3.84%
USA, Bonds 3% 15aug2048, USD
2.11%
USA, Bonds 1.875% 15feb2041, USD
2.08%
USA, Bonds 4.625% 15nov2044, USD
1.99%
USA, Notes 3.875% 31mar2031, USD (W-2031)
1.97%
USA, Notes 4% 31may2030, USD (Z-2030)
1.63%
USA, Notes 4.25% 31mar2033, USD (J-2033)
1.55%
US31427Q3B66
1.42%
USA, Notes 3.75% 31oct2032, USD (R-2032)
1.36%
FR SL3206, 5% 1nov2055, USD (ABS)
1.19%
US3140W06P53
1.19%
US3140W1M753
1.16%
USA, Notes 4.125% 15feb2036, USD (B-2036)
1.15%
USA, Notes 4.25% 15aug2035, USD (E-2035)
1.11%
US3132DUKU06
1.09%
Frequently asked questions about MFSB and TCPB
How have the MFSB and TCPB ETFs performed in 2026?
As of September 14, 2026, MFSB is down -0.68% year-to-date (YTD), while TCPB has lost -1.14%. That puts MFSB better performer ahead so far this year.
Which ETF is attracting more investor money: MFSB or TCPB?
Year-to-date, the MFSB ETF saw +$427M in flows, compared to +$155M for TCPB.
Which ETF is more volatile: MFSB or TCPB?
Over the past year, MFSB had a volatility of 3.32%, while TCPB experienced 3.53%.
Which ETF is bigger: MFSB or TCPB?
As of September 14, 2026, MFSB holds $568.93 M in assets under management (AUM), while TCPB manages $480.66 M.
What sectors do the MFSB and TCPB ETFs invest in?
MFSB leans toward sectors like Sovereign, Finance and Industrials. Meanwhile, TCPB focuses on Sovereign, Finance and Industrials.
What are the top holdings of the MFSB ETF and TCPB 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). TCPB holds in its top three: USA, Bonds 4.5% 15nov2054, USD, USA, Bonds 3% 15aug2048, USD and USA, Bonds 1.875% 15feb2041, USD.
Which ETF is more diversified: MFSB or TCPB?
MFSB holds 457 securities with 27.06% of its assets in the top 15. TCPB has 523 securities and a top 15 weight of 24.83%.
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Latest news about MFSB & TCPB
What's the Fund | MFS Active Core Plus Bond ETF (MFSB)
July 25, 2025
MFSB
Thrivent Expands Fixed Income Offerings with Two New Bond ETFs
February 24, 2025
TCPB
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