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IWYvsMGKETF Comparison
iShares Russell Top 200 Growth ETF (IWY) and Vanguard Mega Cap Growth ETF (MGK) belong to the same industry segment: US Large Cap Growth. Both ETFs have the same top 3 sector exposures: Information Technology, Communication Services and Consumer Discretionary. IWY is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.05% for MGK. IWY is down -4.79% year-to-date (YTD) with +$137M in YTD flows. MGK performs worse with -5.45% YTD performance, and -$1.18B in YTD flows. Run a side-by-side ETF comparison of IWY and MGK below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.
IWY vs MGK performance and flow charts
Performance
Cumulative Flows
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IWY MGK | -1.35%-0.93% | -5.63%-6.09% | -4.79%-5.45% | +24.82%+26.49% | +110.54%+113.05% | +103.14%+94.09% |
| Flows | IWY MGK | +$26M-$777M | -$373M-$1.31B | +$137M-$1.18B | +$658M+$809M | +$3.99B+$5.61B | +$5.67B+$7.54B |
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IWY MGK | +15.73%+15.79% | +22.35%+23.33% | +19.23%+19.67% | +21.50%+22.61% |
| Max drawdown | IWY MGK | -7.20%-8.13% | -15.39%-16.10% | -23.25%-23.44% | -32.74%-36.04% |
| Max drawdown duration | IWY MGK | 73d76d | 45d45d | 192d124d | 715d745d |
IWY | MGK | |
Last sale 3/12/2026 at 1:30 PM | $259.03 | $383.60 |
| Previous close 03/11/2026 | $263.56 | $390.27 |
| Consolidated volume 03/11/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
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IWY | MGK | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
IWY | MGK | |
|---|---|---|
| Last price | $259.03 | $383.60 |
| 1D performance | -1.72% | -1.71% |
| AuM | $15.55 B | $29.43 B |
| E/R | 0.2% | 0.05% |
Countries
Sectors
Diversification
Total weight of top 15 holdings out of 15
Total weight of top 15 holdings out of 15
Top 15 holdings
How have the IWY and MGK ETFs performed in 2026?
As of March 11, 2026, IWY is down -4.79% year-to-date (YTD), while MGK has lost -5.45%. That puts IWY better performer ahead so far this year.
Which ETF is attracting more investor money: IWY or MGK?
Year-to-date, the IWY ETF saw +$137M in flows, compared to -$1.18B for MGK.
Which ETF is more volatile: IWY or MGK?
Over the past year, IWY had a volatility of 22.35%, while MGK experienced 23.33%.
Which ETF is bigger: IWY or MGK?
As of March 11, 2026, IWY holds $15.55 B in assets under management (AUM), while MGK manages $29.43 B.
What sectors do the IWY and MGK ETFs invest in?
IWY leans toward sectors like Information Technology, Communication Services and Consumer Discretionary. Meanwhile, MGK focuses on Information Technology, Communication Services and Consumer Discretionary.
What are the top holdings of the IWY ETF and MGK ETF?
IWY top holdings include NVIDIA, APPLE and MICROSOFT-T. MGK holds in its top three: NVIDIA, APPLE and MICROSOFT-T.
Which ETF is more diversified: IWY or MGK?
IWY holds 111 securities with 71.69% of its assets in the top 15. MGK has 60 securities and a top 15 weight of 74.2%.
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