MGK vs IVW: Holdings Overlap
MGKVanguard Mega Cap Growth Index Fund
Vanguard · 59 holdings · $33.7B · as of 2026-03-31
iShares · 143 holdings · $77.3B · as of 2026-03-31
How similar are MGK and IVW?
Vanguard Mega Cap Growth Index Fund (MGK, by Vanguard) holds 59 positions; iShares S&P 500 Growth ETF (IVW, by iShares) holds 143. 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
- 48MGK holds 59 · IVW holds 143
- Weight in Shared Holdings
- MGK 95%·IVW 75%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 MGK
11 of 59 positions (4.8% of the fund) are not held by IVW.
Sector Breakdown
| Sector | MGK | IVW |
|---|---|---|
| Information Technology | 54.4% | 47.7% |
| Communication Services | 16.7% | 16.8% |
| Consumer Discretionary | 13.1% | 9.4% |
| Financials | 4.9% | 9.8% |
| Industrials | 3.0% | 6.8% |
| Other Sectors | 7.8% | 9.4% |
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 |
|---|---|---|---|---|---|---|---|
| MGK | +3.8% | +10.2% | +19.4% | +24.7% | +14.0% | +18.8% | 0.32% |
| IVW | +4.4% | +15.5% | +25.3% | +26.7% | +14.0% | +17.7% | 0.35% |
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 MGK vs IVW →
Shared Holdings(48)
The top 10 shared positions account for 77% of the overlap, led by NVDA, MSFT and AAPL.
 NVDANVIDIA Corp. COM | 13.75% | 14.62% | 13.75% |
|---|---|---|---|
 MSFTMicrosoft Corp. COM | 9.01% | 9.48% | 9.01% |
 AAPLApple Inc. COM | 12.60% | 6.43% | 6.43% |
 GOOGLAlphabet Inc. CAP STK CL A | 5.51% | 5.78% | 5.51% |
 AVGOBroadcom Inc COM | 4.40% | 5.06% | 4.40% |
 GOOGAlphabet Inc. CAP STK CL C | 4.37% | 4.63% | 4.37% |
 METAMeta Platforms, Inc., Class A | 4.17% | 4.32% | 4.17% |
 AMZNAmazon.com, Inc. COM | 4.59% | 3.72% | 3.72% |
 LLYEli Lilly & Co. COM | 3.17% | 2.51% | 2.51% |
 TSLATesla Inc COM | 4.18% | 2.24% | 2.24% |
 NFLXNetflix, Inc. COM | 1.76% | 1.40% | 1.40% |
 PLTRPalantir Technologies, Inc., Class A | 1.42% | 1.15% | 1.15% |
 AMDAdvanced Micro Devices Inc. COM | 1.49% | 1.14% | 1.14% |
 VVisa, Inc., Class A | 1.97% | 0.96% | 0.96% |
 MAMasterCard Incorporated CL A | 1.72% | 0.94% | 0.94% |
 LRCXLam Research Corporation COM NEW | 1.25% | 0.92% | 0.92% |
 GEVGE Vernova Inc. COM | 1.14% | 0.81% | 0.81% |
 KLACKLA Corp. COM NEW | 0.98% | 0.67% | 0.67% |
 ISRGIntuitive Surgical Inc. COM NEW | 0.83% | 0.56% | 0.56% |
 APHAmphenol Corporation CL A | 0.80% | 0.54% | 0.54% |
 UBERUber Technologies Inc COM | 0.78% | 0.51% | 0.51% |
 WELLWelltower Inc. COM | 0.74% | 0.48% | 0.48% |
 BKNGBooking Holdings Inc COM | 0.71% | 0.47% | 0.47% |
 ORCLOracle Corp. COM | 1.18% | 0.45% | 0.45% |
 ANETArista Networks Inc COM SHS | 0.70% | 0.44% | 0.44% |
Frequently Asked Questions
How much do MGK and IVW overlap?
MGK and IVW overlap by 72.6% of portfolio weight. They share 48 holdings (MGK holds 59 positions and IVW holds 143), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MGK and IVW?
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 MGK and IVW?
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 MGK own that IVW doesn't?
11 positions (4.8% of MGK) are unique to MGK, led by VRTX, EQIX and CRM. In the other direction, 95 positions (24.6% of IVW) are unique to IVW.