TMSFvsBTOTETF Comparison
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T. Rowe Price Multi-Sector Income ETF (TMSF) belongs to the Intl Aggregate Bonds segment. iShares Total USD Fixed Income Market ETF (BTOT) is part of the US Aggregate Bonds segment. Both ETFs have the same top 3 sector exposures: Sovereign, Finance and Industrials. TMSF is more expensive with a Total Expense Ratio (TER) of 0.37%, versus 0.1% for BTOT. TMSF is up 2.63% year-to-date (YTD) with +$33M in YTD flows. BTOT performs worse with 0.14% YTD performance, and +$5M in YTD flows. Run a side-by-side ETF comparison of TMSF and BTOT 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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TMSF vs BTOT performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/01/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | TMSF BTOT | +0.27%+0.44% | +0.50%-0.43% | +2.63%+0.14% | n/an/a | n/an/a | n/an/a |
| Flows | TMSF BTOT | -- | +$30M+$5M | +$33M+$5M | -- | -- | -- |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | TMSF BTOT | +1.96%+3.49% | n/an/a | n/an/a | n/an/a |
| Max drawdown | TMSF BTOT | -0.60%-1.49% | n/an/a | n/an/a | n/an/a |
| Max drawdown duration | TMSF BTOT | 29d63d | n/an/a | n/an/a | n/an/a |
Trading data
TMSF | BTOT | |
Last sale 9/2/2026 at 1:30 PM | $49.91 | $48.56 |
| Previous close 09/02/2026 | $49.88 | $48.55 |
| Consolidated volume 09/02/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of August 31, 2026
1-year trailing difference
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TMSF
is actively managed and doesn’t replicate an indexTMSF | BTOT | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/2/2026 at 1:30 PM
Live
Closed
TMSF | BTOT | |
|---|---|---|
| Last price | $49.91 | $48.56 |
| 1D performance | +0.07% | +0.02% |
| AuM | $58.55 M | $29.28 M |
| E/R | 0.37% | 0.1% |
Characteristics
TMSF | BTOT | |
|---|---|---|
| Management strategy | Active | Passive |
| Provider | T. Rowe Price | iShares |
| Benchmark | - | Bloomberg US Total Fixed Income Market Index |
| N° of holdings | 223 | 1001 |
| Asset class | - | - |
| Trailing 12m distribution yield | Join | Join |
| Inception date | November 19, 2025 | December 10, 2025 |
| ESG | No | No |
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Exposure
Countries
TMSF
USA
57.54%
Other
42.46%
BTOT
USA
76.56%
Other
23.44%
Sectors
TMSF
Sovereign
21.68%
Finance
16.5%
Other
61.81%
BTOT
Sovereign
44.98%
Finance
11.87%
Other
43.15%
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Diversification
TMSF
Total weight of top 15 holdings out of 15
21.01%
BTOT
Total weight of top 15 holdings out of 15
19.36%
Top 15 holdings
Data as of July 31, 2026
TMSF
USA, Notes 4% 31may2028, USD (BC-2028)
5.14%
USA, TIPS 1.875% 15jan2036, USD (A-2036)
4.14%
US87283Q8832
2.11%
USA, TIPS 1.125% 15oct2030, USD (AE-2030)
1.47%
Mexico, Bonos 8.5% 28feb2030, MXN
1.34%
Colombia, 5.375% 21jan2029, USD
1.03%
USA, Bonds 5% 15may2046, USD
0.72%
Brazil, 6.625% 15mar2035, USD
0.71%
USA, Bonds 5% 15may2056, USD
0.68%
Ecuador, 8.75% 29jan2034, USD
0.68%
Paraguay, 2.739% 29jan2033, USD
0.64%
Carvana, 14% 1jun2031, USD
0.63%
Afreximbank, 6.25% 23jan2032, USD
0.62%
JP Morgan, 0.5% 15jun2027, USD (A, Conv.)
0.56%
Civitas Resources, 9.625% 15jun2033, USD
0.54%
BTOT
BlackRock Cash Funds - Institutional
5.64%
US31418EB825
1.92%
FR SD8212, 2.5% 1may2052, USD (ABS)
1.32%
USA, Notes 3.875% 31jul2027, USD (BE-2027)
1.08%
Benchmark Mortgage Trust 2025-V18, 5.18365% 18oct2058, USD (ABS, A3)
1.03%
USA, Notes 4.875% 31oct2030, USD (R-2030)
0.93%
USA, Notes 3.625% 31aug2027, USD (BG-2027)
0.86%
US3140XPXH76
0.86%
USA, Notes 3.375% 15sep2027, USD (AS-2027)
0.86%
US01F0204895
0.85%
USA, Notes 4% 31jul2032, USD (N-2032)
0.85%
USA, Notes 4% 30apr2032, USD (K-2032)
0.84%
US01F0326821
0.84%
USA, Notes 1.875% 15feb2032, USD (B-2032)
0.75%
US31418EDD94
0.74%
Frequently asked questions about TMSF and BTOT
How have the TMSF and BTOT ETFs performed in 2026?
As of September 1, 2026, TMSF is up 2.63% year-to-date (YTD), while BTOT has returned 0.14%. That puts TMSF better performer ahead so far this year.
Which ETF is attracting more investor money: TMSF or BTOT?
Year-to-date, the TMSF ETF saw +$33M in flows, compared to +$5M for BTOT.
Which ETF is bigger: TMSF or BTOT?
As of September 1, 2026, TMSF holds $58.55 M in assets under management (AUM), while BTOT manages $29.28 M.
What sectors do the TMSF and BTOT ETFs invest in?
TMSF leans toward sectors like Sovereign and Finance. Meanwhile, BTOT focuses on Sovereign and Finance.
What are the top holdings of the TMSF ETF and BTOT ETF?
TMSF top holdings include USA, Notes 4% 31may2028, USD (BC-2028), USA, TIPS 1.875% 15jan2036, USD (A-2036) and US87283Q8832. BTOT holds in its top three: BlackRock Cash Funds - Institutional, US31418EB825 and FR SD8212, 2.5% 1may2052, USD (ABS).
Which ETF is more diversified: TMSF or BTOT?
TMSF holds 286 securities with 21.01% of its assets in the top 15. BTOT has 1055 securities and a top 15 weight of 19.36%.
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