GTOSvsMFSBETF Comparison
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Invesco Short Duration Bond ETF (GTOS) and MFS Active Core Plus Bond ETF (MFSB) belong to the same industry segment: US Aggregate Bonds. GTOS's top 3 sector exposures are Finance, Industrials and Sovereign. In contrast, MFSB's top sector exposures are Sovereign, Finance and Industrials. GTOS is less expensive with a Total Expense Ratio (TER) of 0.31%, versus 0.34% for MFSB. GTOS is down -0.79% year-to-date (YTD) with +$14M in YTD flows. MFSB performs better with 0.38% YTD performance, and +$401M in YTD flows. Run a side-by-side ETF comparison of GTOS and MFSB 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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GTOS vs MFSB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 08/31/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | GTOS MFSB | -0.07%+0.44% | -0.18%-0.37% | -0.79%+0.38% | +1.17%+2.98% | +14.51%n/a | n/an/a |
| Flows | GTOS MFSB | +$1M+$26M | +$1M+$133M | +$14M+$401M | +$113M+$482M | +$114M- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | GTOS MFSB | +1.66%+3.51% | +1.47%+3.37% | +1.59%n/a | n/an/a |
| Max drawdown | GTOS MFSB | -0.69%-1.55% | -1.62%-2.56% | -1.62%n/a | n/an/a |
| Max drawdown duration | GTOS MFSB | 46d63d | 196d183d | 196dn/a | n/an/a |
Trading data
GTOS | MFSB | |
Last sale 8/31/2026 at 7:45 PM | $24.86 | $24.55 |
| Previous close 08/31/2026 | $24.85 | $24.67 |
| Consolidated volume 08/31/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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Main metrics
Last update 8/31/2026 at 7:45 PM
Live
Closed
GTOS | MFSB | |
|---|---|---|
| Last price | $24.86 | $24.55 |
| 1D performance | +0.04% | -0.49% |
| AuM | $122.99 M | $548.64 M |
| E/R | 0.31% | 0.34% |
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Exposure
Countries
GTOS
USA
53.2%
Other
46.8%
MFSB
USA
57.02%
Other
42.98%
Sectors
GTOS
Finance
27.6%
Industrials
12.68%
Other
59.72%
MFSB
Sovereign
26.57%
Finance
20.22%
Industrials
8.04%
Other
45.17%
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Diversification
GTOS
Total weight of top 15 holdings out of 15
15.74%
MFSB
Total weight of top 15 holdings out of 15
27.06%
Top 15 holdings
Data as of July 31, 2026
GTOS
USA, Notes 4.125% 30jun2031, USD (AA-2031)
2.69%
US21881PAB04
1.56%
USA, Notes 4.125% 15jul2029, USD (AQ-2029)
1.53%
Energy Transfer, 6.5% perp., USD (H)
1.28%
BX Commercial Mortgage Trust 2026-CSMO, FRN 17feb2043, USD (ABS, A)
0.96%
US746954AC00
0.95%
VoltaGrid, 7.375% 1nov2030, USD
0.86%
US26847XAE94
0.85%
Whetstone Park CLO 2021-1A, FRN 22jan2035, USD (ABS, A1R)
0.85%
US20469CAE57
0.79%
TransDigm, 6.375% 1mar2029, USD
0.71%
NVIDIA, 4.35% 15jun2029, USD
0.68%
US36277VAA98
0.68%
US03466QAA13
0.67%
GS Mortgage-Backed Securities Trust 2025-HE2, FRN 28dec2065, USD (ABS, A1)
0.67%
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%
Frequently asked questions about GTOS and MFSB
How have the GTOS and MFSB ETFs performed in 2026?
As of August 31, 2026, GTOS is down -0.79% year-to-date (YTD), while MFSB has returned 0.38%. That puts MFSB better performer ahead so far this year.
Which ETF is attracting more investor money: GTOS or MFSB?
Year-to-date, the GTOS ETF saw +$14M in flows, compared to +$401M for MFSB.
Which ETF is more volatile: GTOS or MFSB?
Over the past year, GTOS had a volatility of 1.47%, while MFSB experienced 3.37%.
Which ETF is bigger: GTOS or MFSB?
As of August 31, 2026, GTOS holds $122.99 M in assets under management (AUM), while MFSB manages $548.64 M.
What sectors do the GTOS and MFSB ETFs invest in?
GTOS leans toward sectors like Finance and Industrials. Meanwhile, MFSB focuses on Sovereign, Finance and Industrials.
What are the top holdings of the GTOS ETF and MFSB ETF?
GTOS top holdings include USA, Notes 4.125% 30jun2031, USD (AA-2031), US21881PAB04 and USA, Notes 4.125% 15jul2029, USD (AQ-2029). MFSB holds in its top three: USA, Bonds 4.625% 15nov2045, USD, USA, Bonds 4.625% 15nov2055, USD and USA, Notes 3.875% 31jul2030, USD (AB-2030).
Which ETF is more diversified: GTOS or MFSB?
GTOS holds 841 securities with 15.74% of its assets in the top 15. MFSB has 457 securities and a top 15 weight of 27.06%.
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Latest news about GTOS & MFSB
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