MGK vs QQQ: Holdings Overlap
MGKVanguard Mega Cap Growth Index Fund
Vanguard · 59 holdings · $33.7B · as of 2026-03-31
QQQInvesco QQQ Trust, Series 1
Invesco · 101 holdings · $479.2B · as of 2026-03-31
How similar are MGK and QQQ?
Vanguard Mega Cap Growth Index Fund (MGK, by Vanguard) holds 59 positions; Invesco QQQ Trust, Series 1 (QQQ, by Invesco) holds 101. They have 33 holdings in common, and by portfolio weight the two funds are 59.5% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 59.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 33MGK holds 59 · QQQ holds 101
- Weight in Shared Holdings
- MGK 79%·QQQ 63%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
26 of 59 positions (20.8% of the fund) are not held by QQQ.
Sector Breakdown
| Sector | MGK | QQQ |
|---|---|---|
| Information Technology | 54.4% | 49.7% |
| Communication Services | 16.7% | 16.0% |
| Consumer Discretionary | 13.1% | 12.6% |
| Consumer Staples | 0.4% | 8.5% |
| Health Care | 5.2% | 5.1% |
| Other Sectors | 10.0% | 8.0% |
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% |
| QQQ | +1.9% | +18.0% | +27.6% | +25.2% | +15.2% | +20.8% | 0.42% |
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 QQQ →
Shared Holdings(33)
The top 10 shared positions account for 76% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 13.75% | 8.68% | 8.68% |
|---|---|---|---|
 AAPLApple Inc. COM | 12.60% | 7.63% | 7.63% |
 MSFTMicrosoft Corp. COM | 9.01% | 5.63% | 5.63% |
 AMZNAmazon.com, Inc. COM | 4.59% | 4.58% | 4.58% |
 TSLATesla Inc COM | 4.18% | 3.80% | 3.80% |
 METAMeta Platforms, Inc., Class A | 4.17% | 3.46% | 3.46% |
 GOOGLAlphabet Inc. CAP STK CL A | 5.51% | 3.43% | 3.43% |
 GOOGAlphabet Inc. CAP STK CL C | 4.37% | 3.20% | 3.20% |
 AVGOBroadcom Inc COM | 4.40% | 3.01% | 3.01% |
 NFLXNetflix, Inc. COM | 1.76% | 2.30% | 1.76% |
 AMDAdvanced Micro Devices Inc. COM | 1.49% | 1.88% | 1.49% |
 PLTRPalantir Technologies, Inc., Class A | 1.42% | 1.90% | 1.42% |
 LRCXLam Research Corporation COM NEW | 1.25% | 1.51% | 1.25% |
 KLACKLA Corp. COM NEW | 0.98% | 1.09% | 0.98% |
 ISRGIntuitive Surgical Inc. COM NEW | 0.83% | 0.93% | 0.83% |
 PANWPalo Alto Networks Inc COM | 0.71% | 0.74% | 0.71% |
 BKNGBooking Holdings Inc COM | 0.71% | 0.75% | 0.71% |
 INTUIntuit Inc COM | 0.66% | 0.68% | 0.66% |
 VRTXVertex Pharmaceuticals Incorporated COM | 0.65% | 0.64% | 0.64% |
 CRWDCrowdstrike Holdings, Inc., Class A | 0.56% | 0.56% | 0.56% |
 APPAppLovin Corp., Class A | 0.55% | 0.69% | 0.55% |
 MARMarriott International, Inc., Class A | 0.49% | 0.49% | 0.49% |
 ORLYO'Reilly Automotive Inc. COM | 0.51% | 0.44% | 0.44% |
 CDNSCadence Design Systems, Inc. COM | 0.50% | 0.43% | 0.43% |
 SNPSSynopsys Inc COM | 0.49% | 0.43% | 0.43% |
Frequently Asked Questions
How much do MGK and QQQ overlap?
MGK and QQQ overlap by 59.5% of portfolio weight. They share 33 holdings (MGK holds 59 positions and QQQ holds 101), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MGK and QQQ?
The two portfolios are 59.5% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of MGK and QQQ?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and TSLA. Together the top 10 shared positions account for 76% of the total overlap.
What does MGK own that QQQ doesn't?
26 positions (20.8% of MGK) are unique to MGK, led by LLY, V and MA. In the other direction, 68 positions (37.0% of QQQ) are unique to QQQ.