MGC vs XLG: Holdings Overlap
MGCVanguard Mega Cap Index Fund
Vanguard · 173 holdings · $10.3B · as of 2026-05-31
Invesco · 51 holdings · $10.7B · as of 2026-04-30
Holdings snapshots are 31 days apart (MGC: 2026-05-31, XLG: 2026-04-30). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are MGC and XLG?
Vanguard Mega Cap Index Fund (MGC, by Vanguard) holds 173 positions; Invesco S&P 500 Top 50 ETF (XLG, by Invesco) holds 51. They have 51 holdings in common, and by portfolio weight the two funds are 72.4% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 72.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 51MGC holds 173 · XLG holds 51
- Weight in Shared Holdings
- MGC 72%·XLG 100%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 MGC
122 of 173 positions (27.4% of the fund) are not held by XLG. Showing the top 30 by weight.
Only in XLG
Every position in XLG is also held by MGC, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | MGC | XLG |
|---|---|---|
| Information Technology | 42.4% | 43.7% |
| Communication Services | 12.2% | 17.0% |
| Consumer Discretionary | 9.7% | 11.3% |
| Financials | 10.7% | 9.6% |
| Health Care | 8.6% | 7.0% |
| Other Sectors | 16.0% | 11.0% |
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 |
|---|---|---|---|---|---|---|---|
| MGC | +3.6% | +13.6% | +24.3% | +22.7% | +14.0% | +16.2% | 0.89% |
| XLG | +3.7% | +7.2% | +17.9% | +22.2% | +14.3% | +16.6% | 0.63% |
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 MGC vs XLG →
Shared Holdings(51)
The top 10 shared positions account for 65% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 9.10% | 13.04% | 9.10% |
|---|---|---|---|
 AAPLApple Inc. COM | 8.55% | 10.71% | 8.55% |
 MSFTMicrosoft Corp. COM | 6.24% | 8.14% | 6.24% |
 AMZNAmazon.com, Inc. COM | 4.88% | 6.96% | 4.88% |
 GOOGLAlphabet Inc. CAP STK CL A | 4.13% | 6.03% | 4.13% |
 AVGOBroadcom Inc COM | 3.95% | 4.83% | 3.95% |
 GOOGAlphabet Inc. CAP STK CL C | 3.25% | 4.80% | 3.25% |
 METAMeta Platforms, Inc., Class A | 2.58% | 3.60% | 2.58% |
 TSLATesla Inc COM | 2.29% | 2.89% | 2.29% |
 LLYEli Lilly & Co. COM | 1.75% | 1.99% | 1.75% |
 AMDAdvanced Micro Devices Inc. COM | 1.57% | 1.55% | 1.55% |
 BRK-BBerkshire Hathaway, Inc., Class B | 1.53% | 2.34% | 1.53% |
 JPMJPMorgan Chase & Co. COM | 1.41% | 2.27% | 1.41% |
 XOMExxon Mobil Corp. COM | 1.13% | 1.73% | 1.13% |
 VVisa, Inc., Class A | 1.02% | 1.49% | 1.02% |
 JNJJohnson & Johnson COM | 1.01% | 1.49% | 1.01% |
 WMTWalmart Inc COM | 0.95% | 1.56% | 0.95% |
 CSCOCisco Systems, Inc. COM | 0.80% | 0.97% | 0.80% |
 COSTCostco Wholesale Corporation COM | 0.79% | 1.21% | 0.79% |
 CATCaterpillar Inc COM | 0.76% | 1.11% | 0.76% |
 MAMasterCard Incorporated CL A | 0.73% | 1.10% | 0.73% |
 ORCLOracle Corp. COM | 0.73% | 0.74% | 0.73% |
 ABBVAbbVie Inc. COM | 0.72% | 1.00% | 0.72% |
 NFLXNetflix, Inc. COM | 0.68% | 1.06% | 0.68% |
 CVXChevron Corp. COM | 0.65% | 0.97% | 0.65% |
Frequently Asked Questions
How much do MGC and XLG overlap?
MGC and XLG overlap by 72.4% of portfolio weight. They share 51 holdings (MGC holds 173 positions and XLG holds 51), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MGC and XLG?
The two portfolios are 72.4% 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 MGC and XLG?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 65% of the total overlap.
What does MGC own that XLG doesn't?
122 positions (27.4% of MGC) are unique to MGC, led by MU, INTC and LRCX. In the other direction, 0 positions (0.0% of XLG) are unique to XLG.