IJKvsMDYGETF Comparison
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The ETFs iShares S&P Mid-Cap 400 Growth ETF (IJK) and State Street SPDR S&P 400 Mid Cap Growth ETF (MDYG) track the S&P MidCap 400 Growth Total Return Index - USD and belong to the same industry segment: US Mid Cap Growth. Both ETFs have the same top 3 sector exposures: Technology, Industrials and Healthcare. IJK is more expensive with a Total Expense Ratio (TER) of 0.16%, versus 0.15% for MDYG. IJK is up 11.82% year-to-date (YTD) with +$171M in YTD flows. MDYG performs better with 11.9% YTD performance, and +$73M in YTD flows. Run a side-by-side ETF comparison of IJK and MDYG 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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IJK vs MDYG performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/30/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IJK MDYG | -1.52%-1.52% | -3.41%-3.40% | +11.82%+11.90% | +13.68%+13.76% | +61.84%+61.96% | +29.94%+30.05% |
| Flows | IJK MDYG | +$245M+$42M | +$41M+$79M | +$171M+$73M | +$134M+$105M | -$543M+$59M | -$403M+$459M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IJK MDYG | +15.18%+15.17% | +17.73%+17.64% | +18.91%+18.87% | +20.78%+20.76% |
| Max drawdown | IJK MDYG | -10.15%-10.14% | -10.15%-10.14% | -25.48%-25.46% | -29.27%-29.25% |
| Max drawdown duration | IJK MDYG | 74d74d | 74d74d | 379d379d | 834d834d |
Trading data
IJK | MDYG | |
Last sale 11/2/2026 at 6:59 PM | $108.93 | $104.26 |
| Previous close 10/30/2026 | $107.94 | $102.87 |
| Consolidated volume 10/30/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of October 30, 2026
1-year trailing difference
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IJK | MDYG | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 11/2/2026 at 6:59 PM
Live
Closed
IJK | MDYG | |
|---|---|---|
| Last price | $108.93 | $104.26 |
| 1D performance | +0.92% | +1.35% |
| AuM | $10.37 B | $2.79 B |
| E/R | 0.16% | 0.15% |
Characteristics
IJK | MDYG | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | State Street Investment Management |
| Benchmark | S&P MidCap 400 Growth Index | S&P MidCap 400 Growth Index |
| N° of holdings | 248 | 247 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | July 24, 2000 | November 8, 2005 |
| ESG | No | No |
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Exposure
Countries
IJK
USA
94.71%
Other
5.29%
MDYG
USA
94.63%
Other
5.37%
Sectors
IJK
Technology
21.77%
Industrials
19.09%
Healthcare
15.65%
Finance
14.46%
Non-Energy Materi.
9.29%
Other
19.74%
MDYG
Technology
21.77%
Industrials
19.09%
Healthcare
15.65%
Finance
14.45%
Non-Energy Materi.
9.29%
Other
19.74%
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Diversification
IJK
Total weight of top 15 holdings out of 15
20.18%
MDYG
Total weight of top 15 holdings out of 15
20.18%
Top 15 holdings
Data as of September 30, 2026
IJK
Twilio, Inc.
2.52%
Okta, Inc.
1.95%
TechnipFMC plc
1.50%
nVent Electric Plc
1.46%
ATI, Inc.
1.45%
United Therapeutics Corp.
1.31%
XPO, Inc.
1.16%
Tenet Healthcare Corp.
1.16%
Roku, Inc.
1.13%
Curtiss-Wright Corp.
1.13%
Royal Gold, Inc.
1.12%
MACOM Technology Solutions Holdings, Inc.
1.11%
Woodward, Inc.
1.09%
Carpenter Technology Corp.
1.08%
Coeur Mining, Inc.
1.02%
MDYG
Twilio, Inc.
2.52%
Okta, Inc.
1.95%
TechnipFMC plc
1.50%
nVent Electric Plc
1.46%
ATI, Inc.
1.45%
United Therapeutics Corp.
1.31%
XPO, Inc.
1.16%
Tenet Healthcare Corp.
1.16%
Roku, Inc.
1.13%
Curtiss-Wright Corp.
1.13%
Royal Gold, Inc.
1.12%
MACOM Technology Solutions Holdings, Inc.
1.11%
Woodward, Inc.
1.09%
Carpenter Technology Corp.
1.08%
Coeur Mining, Inc.
1.02%
Frequently asked questions about IJK and MDYG
How have the IJK and MDYG ETFs performed in 2026?
As of October 30, 2026, IJK is up 11.82% year-to-date (YTD), while MDYG has returned 11.9%. That puts MDYG better performer ahead so far this year.
Which ETF is attracting more investor money: IJK or MDYG?
Year-to-date, the IJK ETF saw +$171M in flows, compared to +$73M for MDYG.
Which ETF is more volatile: IJK or MDYG?
Over the past year, IJK had a volatility of 17.73%, while MDYG experienced 17.64%.
Which ETF is bigger: IJK or MDYG?
As of October 30, 2026, IJK holds $10.37 B in assets under management (AUM), while MDYG manages $2.79 B.
What sectors do the IJK and MDYG ETFs invest in?
IJK leans toward sectors like Technology, Industrials and Healthcare. Meanwhile, MDYG focuses on Technology, Industrials and Healthcare.
What are the top holdings of the IJK ETF and MDYG ETF?
IJK top holdings include Twilio, Inc., Okta, Inc. and TechnipFMC plc. MDYG holds in its top three: Twilio, Inc., Okta, Inc. and TechnipFMC plc.
Which ETF is more diversified: IJK or MDYG?
IJK holds 248 securities with 20.18% of its assets in the top 15. MDYG has 247 securities and a top 15 weight of 20.18%.
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