BWZvsIGOVETF Comparison
ETF 1
BWZ
State Street SPDR Bloomberg Short Term International Treasury Bond ETF
This fund is part of
Intl Government Bonds
-0.02%
VS
State Street SPDR Bloomberg Short Term International Treasury Bond ETF (BWZ) and iShares International Treasury Bond ETF (IGOV) belong to the same industry segment: Intl Government Bonds. BWZ's top 1 sector exposures are Sovereign. In contrast, IGOV's top sector exposures are Sovereign and Non-Corporate. Both BWZ and IGOV have the same Total Expense Ratio (TER) of 0.35%. BWZ is up 0.49% year-to-date (YTD) with -$18M in YTD flows. IGOV performs worse with -3.01% YTD performance, and +$581M in YTD flows. Run a side-by-side ETF comparison of BWZ and IGOV 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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BWZ vs IGOV performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | BWZ IGOV | +0.12%-1.77% | +0.63%-2.86% | +0.49%-3.01% | -1.01%-4.63% | +11.07%+9.28% | -6.12%-20.83% |
| Flows | BWZ IGOV | +$38M+$4M | +$17M+$163M | -$18M+$581M | -$39M+$462M | +$152M+$359M | +$146M+$669M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | BWZ IGOV | +5.01%+5.84% | +5.51%+7.06% | +6.17%+8.11% | +6.68%+9.14% |
| Max drawdown | BWZ IGOV | -1.86%-3.21% | -4.23%-6.03% | -8.32%-10.40% | -21.23%-31.64% |
| Max drawdown duration | BWZ IGOV | 45d92d | 216d199d | 194d200d | 1826d1826d |
Trading data
BWZ | IGOV | |
Last sale 9/17/2026 at 4:18 PM | $27.12 | $40.61 |
| Previous close 09/16/2026 | $27.04 | $40.34 |
| Consolidated volume 09/16/2026 | ||
| 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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BWZ | IGOV | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/17/2026 at 4:18 PM
Live
Closed
BWZ | IGOV | |
|---|---|---|
| Last price | $27.12 | $40.61 |
| 1D performance | +0.30% | +0.67% |
| AuM | $325.94 M | $1.52 B |
| E/R | 0.35% | 0.35% |
Characteristics
BWZ | IGOV | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | State Street Investment Management | iShares |
| Benchmark | Bloomberg 1-3 Year Global Treasury ex-US Capped Index | FTSE World Government Bond Index - Developed Markets Capped Select Index |
| N° of holdings | 253 | 954 |
| Asset class | Bonds | Fixed Income |
| Trailing 12m distribution yield | Join | Join |
| Inception date | January 15, 2009 | January 21, 2009 |
| ESG | No | No |
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Exposure
Countries
BWZ
Japan
22.92%
Other
77.08%
IGOV
Japan
11.13%
France
8.63%
Italy
7.93%
United Kingdom
7.05%
Other
65.25%
Sectors
BWZ
Sovereign
98.72%
Other
1.28%
IGOV
Sovereign
99.63%
Other
0.37%
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Diversification
BWZ
Total weight of top 15 holdings out of 15
16.7%
IGOV
Total weight of top 15 holdings out of 15
5.4%
Top 15 holdings
Data as of July 31, 2026
BWZ
Belgium, OLO 5.5% 28mar2028, EUR (31)
1.88%
Japan, JGB 0.1% 20mar2028, JPY
1.28%
Australia, TB 3.25% 21apr2029, AUD (TB138)
1.27%
Netherlands, DSL 5.5% 15jan2028, EUR
1.21%
Australia, TB 2.75% 21nov2028, AUD (TB152)
1.21%
United Kingdom, Gilt 4.375% 7mar2028, GBP
1.01%
Australia, TB 2.25% 21may2028, AUD (TB149)
1.01%
Japan, JGB 0.1% 20jun2028, JPY
1.00%
Mexico, Bonos 8.5% 1mar2029, MXN
0.99%
Japan, JGB 0.1% 20sep2027, JPY
0.98%
Japan, JGB 0.1% 20dec2027, JPY
0.98%
Japan, JGB 0.1% 20sep2027, JPY
0.98%
Australia, TB 2.75% 21nov2027, AUD (TB148)
0.97%
Japan, JGB 0.1% 20sep2028, JPY
0.97%
Japan, JGB 0.1% 20dec2028, JPY
0.96%
IGOV
Portugal, OT 2.125% 17oct2028, EUR
0.53%
Denmark, DGB 4.5% 15nov2039, DKK
0.47%
Slovakia, GB 3.75% 6mar2034, EUR
0.39%
United Kingdom, Gilt 4.5% 7mar2035, GBP
0.38%
France, OAT 3.5% 25nov2033, EUR
0.38%
Portugal, OT 1.95% 15jun2029, EUR
0.37%
Portugal, OT 4.1% 15apr2037, EUR
0.37%
Israel, SHAHAR 5.5% 31jan2042, ILS
0.34%
Japan, JGB 2.4% 20mar2036, JPY
0.33%
France, OAT 0.75% 25feb2028, EUR
0.31%
France, OAT 1.5% 25may2031, EUR
0.31%
Finland, Bonds 3% 15sep2035, EUR
0.31%
Israel, ILGOV 3.75% 30sep2027, ILS
0.31%
Austria, AGB 4.15% 15mar2037, EUR
0.30%
New Zealand, NZGB 3% 20apr2029, NZD
0.30%
Frequently asked questions about BWZ and IGOV
How have the BWZ and IGOV ETFs performed in 2026?
As of September 16, 2026, BWZ is up 0.49% year-to-date (YTD), while IGOV has lost -3.01%. That puts BWZ better performer ahead so far this year.
Which ETF is attracting more investor money: BWZ or IGOV?
Year-to-date, the BWZ ETF saw -$18M in flows, compared to +$581M for IGOV.
Which ETF is more volatile: BWZ or IGOV?
Over the past year, BWZ had a volatility of 5.51%, while IGOV experienced 7.06%.
Which ETF is bigger: BWZ or IGOV?
As of September 16, 2026, BWZ holds $325.94 M in assets under management (AUM), while IGOV manages $1.52 B.
What sectors do the BWZ and IGOV ETFs invest in?
BWZ leans toward sectors like Sovereign. Meanwhile, IGOV focuses on Sovereign.
What are the top holdings of the BWZ ETF and IGOV ETF?
BWZ top holdings include Belgium, OLO 5.5% 28mar2028, EUR (31), Japan, JGB 0.1% 20mar2028, JPY and Australia, TB 3.25% 21apr2029, AUD (TB138). IGOV holds in its top three: Portugal, OT 2.125% 17oct2028, EUR, Denmark, DGB 4.5% 15nov2039, DKK and Slovakia, GB 3.75% 6mar2034, EUR.
Which ETF is more diversified: BWZ or IGOV?
BWZ holds 258 securities with 16.7% of its assets in the top 15. IGOV has 966 securities and a top 15 weight of 5.4%.
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