WTBNvsSPABETF Comparison
ETF 1
WTBN
WisdomTree Bianco Fixed Income Total Return Fund
This fund is part of
US Aggregate Bonds
+0.03%
VS
WisdomTree Bianco Fixed Income Total Return Fund (WTBN) and State Street SPDR Portfolio Aggregate Bond ETF (SPAB) belong to the same industry segment: US Aggregate Bonds. Both ETFs have the same top 3 sector exposures: Sovereign, Finance and Industrials. WTBN is more expensive with a Total Expense Ratio (TER) of 0.64%, versus 0.03% for SPAB. WTBN is down -2.64% year-to-date (YTD) with +$21M in YTD flows. SPAB performs better with -1.55% YTD performance, and +$1.57B in YTD flows. Run a side-by-side ETF comparison of WTBN and SPAB 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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WTBN vs SPAB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | WTBN SPAB | -0.35%-0.06% | -2.09%-1.75% | -2.64%-1.55% | -2.91%-1.68% | n/a+14.97% | n/a-1.79% |
| Flows | WTBN SPAB | +$3M+$530M | +$5M+$858M | +$21M+$1.57B | +$33M+$2.03B | -+$3.57B | -+$5.17B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | WTBN SPAB | +4.76%+4.38% | +4.01%+3.86% | n/a+4.97% | n/a+5.98% |
| Max drawdown | WTBN SPAB | -3.37%-3.30% | -5.06%-4.68% | n/a-4.87% | n/a-17.44% |
| Max drawdown duration | WTBN SPAB | 52d52d | 229d229d | n/a284d | n/a1556d |
Trading data
WTBN | SPAB | |
Last sale 10/19/2026 at 1:30 PM | $24.06 | $24.51 |
| Previous close 10/16/2026 | $24.19 | $24.59 |
| Consolidated volume 10/16/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of September 30, 2026
1-year trailing difference
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WTBN | SPAB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/19/2026 at 1:30 PM
Live
Closed
WTBN | SPAB | |
|---|---|---|
| Last price | $24.06 | $24.51 |
| 1D performance | -0.54% | -0.33% |
| AuM | $103.92 M | $10.42 B |
| E/R | 0.64% | 0.03% |
Characteristics
WTBN | SPAB | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | WisdomTree | State Street Investment Management |
| Benchmark | Bianco Research Fixed Income Index | Bloomberg US Aggregate Bond Index |
| N° of holdings | 10108 | 6931 |
| Asset class | Fixed Income | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | December 20, 2023 | May 23, 2007 |
| ESG | No | No |
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Exposure
Countries
WTBN
USA
76.91%
Other
23.09%
SPAB
USA
74.49%
Other
25.51%
Sectors
WTBN
Sovereign
43%
Finance
8.6%
Industrials
7.28%
Other
41.13%
SPAB
Sovereign
45.89%
Finance
10.21%
Industrials
9.47%
Other
34.43%
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Diversification
WTBN
Total weight of top 15 holdings out of 15
7.86%
SPAB
Total weight of top 15 holdings out of 15
6.59%
Top 15 holdings
Data as of August 31, 2026
WTBN
BlackRock Cash Funds - Institutional
1.96%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.47%
USA, Notes 3.875% 15aug2033, USD (E-2033)
0.46%
USA, Notes 4.375% 30nov2030, USD (S-2030)
0.46%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.44%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.44%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.44%
USA, Notes 4% 15nov2035, USD (F-2035)
0.43%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.42%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.42%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.42%
USA, Notes 4% 15feb2034, USD (B-2034)
0.41%
USA, Notes 3.375% 15may2033, USD (C-2033)
0.37%
USA, Notes 1.875% 15feb2032, USD (B-2032)
0.36%
USA, Notes 4% 28feb2030, USD (H-2030)
0.36%
SPAB
USA, Notes 3.5% 15dec2028, USD (AV-2028)
0.74%
US91282CRJ26
0.58%
USA, Notes 3.625% 31dec2030, USD (AH-2030)
0.55%
US01F0526982
0.50%
USA, Notes 3.375% 30nov2027, USD (BL-2027)
0.45%
USA, Notes 4.375% 30nov2028, USD (AG-2028)
0.41%
USA, Notes 3.5% 31jan2028, USD (U-2028)
0.41%
USA, Notes 3.875% 31mar2031, USD (W-2031)
0.40%
US01F0506927
0.38%
USA, Notes 3.375% 31dec2027, USD (BM-2027)
0.37%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.37%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.37%
USA, Notes 3.625% 30sep2031, USD (Q-2031)
0.36%
USA, Notes 4% 15feb2034, USD (B-2034)
0.35%
USA, Notes 4% 30jun2032, USD (M-2032)
0.35%
Frequently asked questions about WTBN and SPAB
How have the WTBN and SPAB ETFs performed in 2026?
As of October 16, 2026, WTBN is down -2.64% year-to-date (YTD), while SPAB has lost -1.55%. That puts SPAB better performer ahead so far this year.
Which ETF is attracting more investor money: WTBN or SPAB?
Year-to-date, the WTBN ETF saw +$21M in flows, compared to +$1.57B for SPAB.
Which ETF is more volatile: WTBN or SPAB?
Over the past year, WTBN had a volatility of 4.01%, while SPAB experienced 3.86%.
Which ETF is bigger: WTBN or SPAB?
As of October 16, 2026, WTBN holds $103.92 M in assets under management (AUM), while SPAB manages $10.42 B.
What sectors do the WTBN and SPAB ETFs invest in?
WTBN leans toward sectors like Sovereign, Finance and Industrials. Meanwhile, SPAB focuses on Sovereign, Finance and Industrials.
What are the top holdings of the WTBN ETF and SPAB ETF?
WTBN top holdings include BlackRock Cash Funds - Institutional, USA, Notes 4.125% 15feb2036, USD (B-2036) and USA, Notes 3.875% 15aug2033, USD (E-2033). SPAB holds in its top three: USA, Notes 3.5% 15dec2028, USD (AV-2028), US91282CRJ26 and USA, Notes 3.625% 31dec2030, USD (AH-2030).
Which ETF is more diversified: WTBN or SPAB?
WTBN holds 18463 securities with 7.86% of its assets in the top 15. SPAB has 8475 securities and a top 15 weight of 6.59%.
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