ETF comparison
IWY vs MGK
Both US Large Cap Growth.
iShares Russell Top 200 Growth ETF · Vanguard Mega Cap Growth Index Fund
Holdings overlap
52 positions appear in both funds. Buying equal dollars of IWY and MGK would leave roughly 82.7% of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
MGK is 15 bps cheaper than IWY. On a $100,000 position that's about $150/yr more in fees for IWY.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with IWY vs MGK.
Top shared holdings
52 shared in total| # | Holding | In IWY | In MGK | Overlap |
|---|---|---|---|---|
| 1 | NVIDIA Corp. | 14.62% | 13.75% | 13.75% |
| 2 | Apple Inc. | 13.13% | 12.60% | 12.60% |
| 3 | Microsoft Corp. | 9.91% | 9.01% | 9.01% |
| 4 | Amazon.com, Inc. | 4.46% | 4.59% | 4.46% |
| 5 | Broadcom Inc | 4.31% | 4.40% | 4.31% |
| 6 | Alphabet Inc. | 3.93% | 5.51% | 3.93% |
| 7 | Tesla Inc | 3.52% | 4.18% | 3.52% |
| 8 | Meta Platforms Inc | 3.42% | 4.17% | 3.42% |
| 9 | Alphabet Inc. | 3.20% | 4.37% | 3.20% |
| 10 | Eli Lilly & Co. | 2.88% | 3.17% | 2.88% |
| 11 | Visa Inc | 2.16% | 1.97% | 1.97% |
| 12 | Netflix, Inc. | 1.73% | 1.76% | 1.73% |
Only in IWY
58 total- Costco Wholesale Corporation 1.88%
- AbbVie Inc. 1.64%
- GE Aerospace 1.25%
- Home Depot Inc. 1.06%
- Coca-Cola Co (The) 0.61%
- Amgen Inc. 0.59%
- Mckesson Corp. 0.42%
- Trane Technologies PLC 0.39%
- Blackstone Inc 0.36%
- Waste Management, Inc. 0.36%
Only in MGK
7 total- Welltower Inc 0.74%
- Sandisk Corp/DE 0.62%
- Equinix Inc 0.60%
- Corning Inc 0.44%
- S&P Global Inc 0.44%
- T-Mobile US Inc 0.39%
- Hilton Worldwide Holdings Inc 0.36%
Open IWY or MGK at a brokerage
Both funds trade commission-free at major US brokerages.
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Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.