NUMGvsVBKETF Comparison
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NuShares ESG Mid-Cap Growth ETF (NUMG) belongs to the US Mid Cap Growth segment. Vanguard Morningstar Small-Cap Growth ETF (VBK) is part of the US Small Cap Growth segment. Both ETFs have the same top 3 sector exposures: Technology, Industrials and Healthcare. NUMG is more expensive with a Total Expense Ratio (TER) of 0.31%, versus 0.05% for VBK. NUMG is down -4.88% year-to-date (YTD) with -$38M in YTD flows. VBK performs better with 12.32% YTD performance, and -$192M in YTD flows. Run a side-by-side ETF comparison of NUMG and VBK 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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NUMG vs VBK performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/17/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | NUMG VBK | -7.06%-5.60% | +0.87%-5.12% | -4.88%+12.32% | -6.95%+11.36% | +21.22%+55.45% | -9.14%+21.86% |
| Flows | NUMG VBK | +$1M-$83M | -$15M-$1.93B | -$38M-$192M | -$40M-$633M | -$96M+$1.05B | +$47M+$2.04B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | NUMG VBK | +17.29%+17.64% | +19.31%+20.78% | +20.29%+21.35% | +23.26%+23.70% |
| Max drawdown | NUMG VBK | -8.69%-8.68% | -19.58%-11.37% | -26.47%-27.46% | -38.67%-38.36% |
| Max drawdown duration | NUMG VBK | 35d44d | 253d82d | 648d287d | 1766d1110d |
Trading data
NUMG | VBK | |
Last sale 9/18/2026 at 1:30 PM | $45.54 | $338.36 |
| Previous close 09/17/2026 | $45.42 | $338.82 |
| Consolidated volume 09/17/2026 | ||
| 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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NUMG | VBK | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/18/2026 at 1:30 PM
Live
Closed
NUMG | VBK | |
|---|---|---|
| Last price | $45.54 | $338.36 |
| 1D performance | +0.26% | -0.14% |
| AuM | $345.24 M | $22.91 B |
| E/R | 0.31% | 0.05% |
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Exposure
Countries
NUMG
USA
98.41%
Other
1.59%
VBK
USA
94.42%
Other
5.58%
Sectors
NUMG
Technology
24.02%
Industrials
20.18%
Healthcare
16.61%
Finance
12.47%
Consumer Non-Cycl.
8.12%
Consumer Cyclical.
7.97%
Other
10.64%
VBK
Technology
22.36%
Industrials
18.91%
Healthcare
18.42%
Finance
11.93%
Other
28.38%
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Diversification
NUMG
Total weight of top 15 holdings out of 15
45.89%
VBK
Total weight of top 15 holdings out of 15
12.41%
Top 15 holdings
Data as of July 31, 2026
NUMG
Datadog, Inc.
5.11%
Comfort Systems USA, Inc.
3.76%
Axon Enterprise, Inc.
3.37%
eBay, Inc.
3.30%
Lumentum Holdings, Inc.
3.17%
IDEXX Laboratories, Inc.
3.15%
Ciena Corp.
3.14%
Veeva Systems, Inc.
2.80%
EMCOR Group, Inc.
2.66%
Keysight Technologies, Inc.
2.66%
W.W. Grainger, Inc.
2.65%
Casey's General Stores, Inc.
2.63%
Burlington Stores, Inc.
2.56%
Live Nation Entertainment, Inc.
2.47%
ResMed, Inc.
2.47%
VBK
Revolution Medicines, Inc.
1.13%
Natera, Inc.
1.08%
Credo Technology Group Holding Ltd.
1.02%
Casey's General Stores, Inc.
0.96%
Twilio, Inc.
0.89%
TechnipFMC plc
0.85%
Curtiss-Wright Corp.
0.80%
ATI, Inc.
0.76%
nVent Electric Plc
0.74%
Carpenter Technology Corp.
0.73%
Everpure, Inc.
0.72%
Astera Labs, Inc.
0.71%
Okta, Inc.
0.71%
XPO, Inc.
0.67%
Woodward, Inc.
0.64%
Frequently asked questions about NUMG and VBK
How have the NUMG and VBK ETFs performed in 2026?
As of September 17, 2026, NUMG is down -4.88% year-to-date (YTD), while VBK has returned 12.32%. That puts VBK better performer ahead so far this year.
Which ETF is attracting more investor money: NUMG or VBK?
Year-to-date, the NUMG ETF saw -$38M in flows, compared to -$192M for VBK.
Which ETF is more volatile: NUMG or VBK?
Over the past year, NUMG had a volatility of 19.31%, while VBK experienced 20.78%.
Which ETF is bigger: NUMG or VBK?
As of September 17, 2026, NUMG holds $345.24 M in assets under management (AUM), while VBK manages $22.91 B.
What sectors do the NUMG and VBK ETFs invest in?
NUMG leans toward sectors like Technology, Industrials and Healthcare. Meanwhile, VBK focuses on Technology, Industrials and Healthcare.
What are the top holdings of the NUMG ETF and VBK ETF?
NUMG top holdings include Datadog, Inc., Comfort Systems USA, Inc. and Axon Enterprise, Inc.. VBK holds in its top three: Revolution Medicines, Inc., Natera, Inc. and Credo Technology Group Holding Ltd..
Which ETF is more diversified: NUMG or VBK?
NUMG holds 43 securities with 45.89% of its assets in the top 15. VBK has 539 securities and a top 15 weight of 12.41%.
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