TPLSvsIMTBETF Comparison
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Thornburg Core Plus Bond ETF (TPLS) belongs to the Intl Aggregate Bonds segment. iShares Core 5-10 Year USD Bond ETF (IMTB) is part of the US Aggregate Bonds segment. TPLS's top 3 sector exposures are Sovereign, Finance and Industrials. In contrast, IMTB's top sector exposures are Sovereign, Industrials and Non-Corporate. TPLS is more expensive with a Total Expense Ratio (TER) of 0.45%, versus 0.07% for IMTB. TPLS is up 0.01% year-to-date (YTD) with -$4M in YTD flows. IMTB performs worse with -0.09% YTD performance, and +$4M in YTD flows. Run a side-by-side ETF comparison of TPLS and IMTB 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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TPLS vs IMTB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 08/31/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | TPLS IMTB | +0.52%+0.39% | -0.47%-0.58% | +0.01%-0.09% | +2.56%+2.63% | n/a+15.48% | n/a+1.33% |
| Flows | TPLS IMTB | -- | -$5M- | -$4M+$4M | -$4M+$26M | -+$84M | -+$158M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | TPLS IMTB | +3.95%+4.26% | +3.86%+3.93% | n/a+5.39% | n/a+6.19% |
| Max drawdown | TPLS IMTB | -1.90%-1.75% | -2.99%-2.88% | n/a-5.43% | n/a-18.13% |
| Max drawdown duration | TPLS IMTB | 63d63d | 183d183d | n/a88d | n/a1452d |
Trading data
TPLS | IMTB | |
Last sale 9/1/2026 at 1:30 PM | $24.66 | $42.60 |
| Previous close 08/31/2026 | $24.66 | $42.90 |
| Consolidated volume 08/31/2026 | ||
| 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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TPLS
is actively managed and doesn’t replicate an indexTPLS | IMTB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/1/2026 at 1:30 PM
Live
Closed
TPLS | IMTB | |
|---|---|---|
| Last price | $24.66 | $42.60 |
| 1D performance | -0.02% | -0.69% |
| AuM | $14.80 M | $274.70 M |
| E/R | 0.45% | 0.07% |
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Exposure
Countries
TPLS
USA
56.8%
Other
43.2%
IMTB
USA
63.31%
Other
36.69%
Sectors
TPLS
Sovereign
17.15%
Finance
11.66%
Industrials
8.17%
Other
63.02%
IMTB
Sovereign
24.95%
Industrials
13.03%
Non-Corporate
10.19%
Finance
10.09%
Other
41.75%
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Diversification
TPLS
Total weight of top 15 holdings out of 15
27.78%
IMTB
Total weight of top 15 holdings out of 15
23.24%
Top 15 holdings
Data as of July 31, 2026
TPLS
USA, STRIPS 0% 15may2045, USD (10958D)
8.52%
USA, STRIPS 0% 15feb2056, USD (10955D)
4.94%
Thornburg Capital Management Fund
2.56%
US693981AC68
1.63%
USA, TIPS 0.125% 15feb2051, USD
1.18%
FR SD8533, 5.5% 1may2055, USD (ABS)
1.16%
US31418EU999
1.05%
FN MA5910, 5.5% 1dec2055, USD (ABS)
1.04%
US3140XRWW19
1.03%
US3132DP3J51
0.92%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.90%
US3140W6XM92
0.73%
US00969YAA29
0.73%
US85573HAA86
0.71%
US233824AA90
0.67%
IMTB
BlackRock Cash Funds - Institutional
10.15%
USA, Notes 4.375% 15may2034, USD (C-2034)
1.19%
USA, Notes 4.25% 15aug2035, USD (E-2035)
1.16%
USA, Notes 4% 15nov2035, USD (F-2035)
1.11%
USA, Notes 4.625% 15feb2035, USD (B-2035)
1.03%
US01F0206874
0.93%
USA, Notes 2.875% 15may2032, USD (C-2032)
0.92%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.91%
USA, Notes 4% 15feb2034, USD (B-2034)
0.86%
USA, Notes 1.25% 15aug2031, USD (E-2031)
0.85%
US31418EDB39
0.85%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.82%
US3140XLFE34
0.82%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.82%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.82%
Frequently asked questions about TPLS and IMTB
How have the TPLS and IMTB ETFs performed in 2026?
As of August 31, 2026, TPLS is up 0.01% year-to-date (YTD), while IMTB has lost -0.09%. That puts TPLS better performer ahead so far this year.
Which ETF is attracting more investor money: TPLS or IMTB?
Year-to-date, the TPLS ETF saw -$4M in flows, compared to +$4M for IMTB.
Which ETF is more volatile: TPLS or IMTB?
Over the past year, TPLS had a volatility of 3.86%, while IMTB experienced 3.93%.
Which ETF is bigger: TPLS or IMTB?
As of August 31, 2026, TPLS holds $14.80 M in assets under management (AUM), while IMTB manages $274.70 M.
What sectors do the TPLS and IMTB ETFs invest in?
TPLS leans toward sectors like Sovereign, Finance and Industrials. Meanwhile, IMTB focuses on Sovereign, Industrials and Non-Corporate.
What are the top holdings of the TPLS ETF and IMTB ETF?
TPLS top holdings include USA, STRIPS 0% 15may2045, USD (10958D), USA, STRIPS 0% 15feb2056, USD (10955D) and Thornburg Capital Management Fund. IMTB holds in its top three: BlackRock Cash Funds - Institutional, USA, Notes 4.375% 15may2034, USD (C-2034) and USA, Notes 4.25% 15aug2035, USD (E-2035).
Which ETF is more diversified: TPLS or IMTB?
TPLS holds 344 securities with 27.78% of its assets in the top 15. IMTB has 3452 securities and a top 15 weight of 23.24%.
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