ISTBvsJNKETF Comparison
VS
ETF 2
JNK
State Street SPDR Bloomberg High Yield Bond ETF
This fund is part of
US Corporate HY Bonds
-0.01%
iShares Core 1-5 Year USD Bond ETF (ISTB) belongs to the US Aggregate Bonds segment. State Street SPDR Bloomberg High Yield Bond ETF (JNK) is part of the US Corporate HY Bonds segment. ISTB's top 3 sector exposures are Sovereign, Finance and Industrials. In contrast, JNK's top sector exposures are Finance, Industrials and Energy. ISTB is less expensive with a Total Expense Ratio (TER) of 0.06%, versus 0.4% for JNK. ISTB is up 0.59% year-to-date (YTD) with +$765M in YTD flows. JNK performs worse with -0.13% YTD performance, and -$1.78B in YTD flows. Run a side-by-side ETF comparison of ISTB and JNK 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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ISTB vs JNK performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/22/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | ISTB JNK | +0.32%-1.89% | +0.07%-1.95% | +0.59%-0.13% | +1.18%+1.37% | +15.96%+27.43% | +10.49%+16.57% |
| Flows | ISTB JNK | +$208M-$1.02B | +$312M-$1.38B | +$765M-$1.78B | +$892M-$2.24B | +$1.25B-$224M | -$396M-$1.73B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ISTB JNK | +2.04%+3.30% | +1.81%+2.95% | +2.14%+3.45% | +2.68%+5.17% |
| Max drawdown | ISTB JNK | -1.51%-2.98% | -1.51%-2.98% | -1.51%-4.09% | -8.72%-16.16% |
| Max drawdown duration | ISTB JNK | 58d56d | 58d56d | 58d72d | 968d813d |
Trading data
ISTB | JNK | |
Last sale 10/23/2026 at 1:30 PM | $47.44 | $92.52 |
| Previous close 10/22/2026 | $47.47 | $92.51 |
| Consolidated volume 10/22/2026 | ||
| 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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ISTB | JNK | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/23/2026 at 1:30 PM
Live
Closed
ISTB | JNK | |
|---|---|---|
| Last price | $47.44 | $92.52 |
| 1D performance | -0.06% | +0.01% |
| AuM | $5.34 B | $5.62 B |
| E/R | 0.06% | 0.4% |
Characteristics
ISTB | JNK | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | State Street Investment Management |
| Benchmark | Bloomberg U.S. Universal 1-5 Year Index | Bloomberg High Yield Very Liquid Index |
| N° of holdings | 6956 | 1131 |
| Asset class | Bonds | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 18, 2012 | November 28, 2007 |
| ESG | No | No |
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Exposure
Countries
ISTB
USA
77.86%
Other
22.14%
JNK
USA
84.82%
Other
15.18%
Sectors
ISTB
Sovereign
54.43%
Finance
18.71%
Other
26.86%
JNK
Finance
18.08%
Industrials
11.66%
Energy
11.02%
Consumer Services
9.11%
Non-Energy Materi.
8.06%
Technology
7.25%
Other
34.83%
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Diversification
ISTB
Total weight of top 15 holdings out of 15
12.68%
JNK
Total weight of top 15 holdings out of 15
6.22%
Top 15 holdings
Data as of August 31, 2026
ISTB
USA, Notes 3.875% 15jun2028, USD (AP-2028)
1.09%
USA, Notes 4.125% 30jun2031, USD (AA-2031)
1.06%
BlackRock Cash Funds - Institutional
1.06%
USA, Notes 4% 28feb2030, USD (H-2030)
0.91%
USA, Notes 3.625% 31oct2030, USD (AF-2030)
0.89%
USA, Notes 4.375% 31jul2031, USD (AB-2031)
0.87%
USA, Notes 3.5% 30nov2030, USD (AG-2030)
0.84%
USA, Notes 3.75% 31jan2031, USD (U-2031)
0.81%
USA, Notes 3.625% 30sep2030, USD (AD-2030)
0.81%
USA, Notes 3.625% 31aug2030, USD (AC-2030)
0.79%
USA, Notes 4% 31may2030, USD (Z-2030)
0.77%
USA, Notes 3.875% 15jul2028, USD (AQ-2028)
0.75%
USA, Notes 4% 31jul2029, USD (AB-2029)
0.74%
USA, Notes 4.5% 31may2029, USD (Z-2029)
0.66%
USA, Notes 4.25% 30jun2029, USD (AA-2029)
0.65%
JNK
1261229 B.C., 10% 15apr2032, USD
0.66%
Meridian Arc HoldCo, 6.25% 30apr2031, USD
0.57%
PR RNO Property Owner 1, 6.5% 1may2031, USD
0.46%
Quikrete Holdings, 6.375% 1mar2032, USD
0.45%
EchoStar, 10.75% 30nov2029, USD
0.44%
Venture Global LNG, 9.5% 1feb2029, USD
0.40%
Cloud Software Group, 6.5% 31mar2029, USD
0.39%
Cloud Software Group, 9% 30sep2029, USD
0.38%
Galaxy Helios Data Center II, 9.875% 1aug2031, USD
0.37%
SV RNO Property Owner 1, 5.875% 1mar2031, USD
0.37%
RP Escrow Issuer, 7.125% 1jun2031, USD
0.36%
Asurion LLC, 8% 31dec2032, USD
0.35%
TransDigm, 6.375% 31may2033, USD
0.35%
Nexstar Media, 6.5% 15sep2033, USD
0.34%
Asurion LLC, 8.375% 1feb2034, USD
0.33%
Frequently asked questions about ISTB and JNK
How have the ISTB and JNK ETFs performed in 2026?
As of October 22, 2026, ISTB is up 0.59% year-to-date (YTD), while JNK has lost -0.13%. That puts ISTB better performer ahead so far this year.
Which ETF is attracting more investor money: ISTB or JNK?
Year-to-date, the ISTB ETF saw +$765M in flows, compared to -$1.78B for JNK.
Which ETF is more volatile: ISTB or JNK?
Over the past year, ISTB had a volatility of 1.81%, while JNK experienced 2.95%.
Which ETF is bigger: ISTB or JNK?
As of October 22, 2026, ISTB holds $5.34 B in assets under management (AUM), while JNK manages $5.62 B.
What sectors do the ISTB and JNK ETFs invest in?
ISTB leans toward sectors like Sovereign and Finance. Meanwhile, JNK focuses on Finance, Industrials and Energy.
What are the top holdings of the ISTB ETF and JNK ETF?
ISTB top holdings include USA, Notes 3.875% 15jun2028, USD (AP-2028), USA, Notes 4.125% 30jun2031, USD (AA-2031) and BlackRock Cash Funds - Institutional. JNK holds in its top three: 1261229 B.C., 10% 15apr2032, USD, Meridian Arc HoldCo, 6.25% 30apr2031, USD and PR RNO Property Owner 1, 6.5% 1may2031, USD.
Which ETF is more diversified: ISTB or JNK?
ISTB holds 7351 securities with 12.68% of its assets in the top 15. JNK has 1154 securities and a top 15 weight of 6.22%.
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Latest news about ISTB & JNK
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What are corporate bond ETFs?
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