IVW vs MGK: Holdings Overlap
iShares · 143 holdings · $77.3B · as of 2026-03-31
MGKVanguard Mega Cap Growth Index Fund
Vanguard · 59 holdings · $33.7B · as of 2026-03-31
How similar are IVW and MGK?
iShares S&P 500 Growth ETF (IVW, by iShares) holds 143 positions; Vanguard Mega Cap Growth Index Fund (MGK, by Vanguard) holds 59. They have 48 holdings in common, and by portfolio weight the two funds are 72.6% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 72.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 48IVW holds 143 · MGK holds 59
- Weight in Shared Holdings
- IVW 75%·MGK 95%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IVW
95 of 143 positions (24.6% of the fund) are not held by MGK. Showing the top 30 by weight.
Sector Breakdown
| Sector | IVW | MGK |
|---|---|---|
| Information Technology | 47.7% | 54.4% |
| Communication Services | 16.8% | 16.7% |
| Consumer Discretionary | 9.4% | 13.1% |
| Financials | 9.8% | 4.9% |
| Industrials | 6.8% | 3.0% |
| Other Sectors | 9.4% | 7.8% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IVW | +4.4% | +15.5% | +25.3% | +26.7% | +14.0% | +17.7% | 0.35% |
| MGK | +3.8% | +10.2% | +19.4% | +24.7% | +14.0% | +18.8% | 0.32% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IVW vs MGK →
Shared Holdings(48)
The top 10 shared positions account for 77% of the overlap, led by NVDA, MSFT and AAPL.
 NVDANVIDIA Corp. COM | 14.62% | 13.75% | 13.75% |
|---|---|---|---|
 MSFTMicrosoft Corp. COM | 9.48% | 9.01% | 9.01% |
 AAPLApple Inc. COM | 6.43% | 12.60% | 6.43% |
 GOOGLAlphabet Inc. CAP STK CL A | 5.78% | 5.51% | 5.51% |
 AVGOBroadcom Inc COM | 5.06% | 4.40% | 4.40% |
 GOOGAlphabet Inc. CAP STK CL C | 4.63% | 4.37% | 4.37% |
 METAMeta Platforms, Inc., Class A | 4.32% | 4.17% | 4.17% |
 AMZNAmazon.com, Inc. COM | 3.72% | 4.59% | 3.72% |
 LLYEli Lilly & Co. COM | 2.51% | 3.17% | 2.51% |
 TSLATesla Inc COM | 2.24% | 4.18% | 2.24% |
 NFLXNetflix, Inc. COM | 1.40% | 1.76% | 1.40% |
 PLTRPalantir Technologies, Inc., Class A | 1.15% | 1.42% | 1.15% |
 AMDAdvanced Micro Devices Inc. COM | 1.14% | 1.49% | 1.14% |
 VVisa, Inc., Class A | 0.96% | 1.97% | 0.96% |
 MAMasterCard Incorporated CL A | 0.94% | 1.72% | 0.94% |
 LRCXLam Research Corporation COM NEW | 0.92% | 1.25% | 0.92% |
 GEVGE Vernova Inc. COM | 0.81% | 1.14% | 0.81% |
 KLACKLA Corp. COM NEW | 0.67% | 0.98% | 0.67% |
 ISRGIntuitive Surgical Inc. COM NEW | 0.56% | 0.83% | 0.56% |
 APHAmphenol Corporation CL A | 0.54% | 0.80% | 0.54% |
 UBERUber Technologies Inc COM | 0.51% | 0.78% | 0.51% |
 WELLWelltower Inc. COM | 0.48% | 0.74% | 0.48% |
 BKNGBooking Holdings Inc COM | 0.47% | 0.71% | 0.47% |
 ORCLOracle Corp. COM | 0.45% | 1.18% | 0.45% |
 ANETArista Networks Inc COM SHS | 0.44% | 0.70% | 0.44% |
Frequently Asked Questions
How much do IVW and MGK overlap?
IVW and MGK overlap by 72.6% of portfolio weight. They share 48 holdings (IVW holds 143 positions and MGK holds 59), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVW and MGK?
The two portfolios are 72.6% identical by weight. Owning both mostly doubles down on the shared core rather than diversifying: the same large positions drive both funds.
What are the biggest shared holdings of IVW and MGK?
The largest positions held by both funds are NVDA, MSFT, AAPL, GOOGL and AVGO. Together the top 10 shared positions account for 77% of the total overlap.
What does IVW own that MGK doesn't?
95 positions (24.6% of IVW) are unique to IVW, led by BRK-B, JPM and MU. In the other direction, 11 positions (4.8% of MGK) are unique to MGK.