MGC vs VTI: Holdings Overlap
MGCVanguard Mega Cap Index Fund
Vanguard · 173 holdings · $10.3B · as of 2026-05-31
VTIVanguard Total Stock Market Index Fund
Vanguard · 3505 holdings · $696.4B · as of 2026-03-31
Holdings snapshots are 61 days apart (MGC: 2026-05-31, VTI: 2026-03-31). 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 VTI?
Vanguard Mega Cap Index Fund (MGC, by Vanguard) holds 173 positions; Vanguard Total Stock Market Index Fund (VTI, by Vanguard) holds 3505. They have 173 holdings in common, and by portfolio weight the two funds are 72.7% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 72.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 173MGC holds 173 · VTI holds 3505
- Weight in Shared Holdings
- MGC 100%·VTI 73%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
Every position in MGC is also held by VTI, so it brings nothing the other fund doesn’t already own.
Only in VTI
3332 of 3505 positions (26.3% of the fund) are not held by MGC. Showing the top 30 by weight.
Sector Breakdown
| Sector | MGC | VTI |
|---|---|---|
| Information Technology | 42.4% | 30.5% |
| Financials | 10.7% | 12.7% |
| Communication Services | 12.2% | 9.6% |
| Industrials | 6.4% | 10.4% |
| Health Care | 8.6% | 10.0% |
| Other Sectors | 19.3% | 26.1% |
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% |
| VTI | +3.3% | +14.6% | +24.2% | +20.9% | +12.3% | +14.9% | 1.02% |
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 VTI →
Shared Holdings(173)
The top 10 shared positions account for 44% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 9.10% | 6.42% | 6.42% |
|---|---|---|---|
 AAPLApple Inc. COM | 8.55% | 5.94% | 5.94% |
 MSFTMicrosoft Corp. COM | 6.24% | 4.38% | 4.38% |
 AMZNAmazon.com, Inc. COM | 4.88% | 3.21% | 3.21% |
 GOOGLAlphabet Inc. CAP STK CL A | 4.13% | 2.67% | 2.67% |
 AVGOBroadcom Inc COM | 3.95% | 2.34% | 2.34% |
 GOOGAlphabet Inc. CAP STK CL C | 3.25% | 2.11% | 2.11% |
 METAMeta Platforms, Inc., Class A | 2.58% | 2.00% | 2.00% |
 TSLATesla Inc COM | 2.29% | 1.67% | 1.67% |
 BRK-BBerkshire Hathaway, Inc., Class B | 1.53% | 1.37% | 1.37% |
 LLYEli Lilly & Co. COM | 1.75% | 1.25% | 1.25% |
 JPMJPMorgan Chase & Co. COM | 1.41% | 1.19% | 1.19% |
 XOMExxon Mobil Corp. COM | 1.13% | 1.13% | 1.13% |
 JNJJohnson & Johnson COM | 1.01% | 0.94% | 0.94% |
 WMTWalmart Inc COM | 0.95% | 0.87% | 0.87% |
 VVisa, Inc., Class A | 1.02% | 0.79% | 0.79% |
 COSTCostco Wholesale Corporation COM | 0.79% | 0.71% | 0.71% |
 NFLXNetflix, Inc. COM | 0.68% | 0.65% | 0.65% |
 MAMasterCard Incorporated CL A | 0.73% | 0.63% | 0.63% |
 CVXChevron Corp. COM | 0.65% | 0.63% | 0.63% |
 ABBVAbbVie Inc. COM | 0.72% | 0.61% | 0.61% |
 MUMicron Technology Inc. COM | 2.04% | 0.61% | 0.61% |
 PGThe Procter & Gamble Co. COM | 0.62% | 0.54% | 0.54% |
 AMDAdvanced Micro Devices Inc. COM | 1.57% | 0.53% | 0.53% |
 CATCaterpillar Inc COM | 0.76% | 0.53% | 0.53% |
Frequently Asked Questions
How much do MGC and VTI overlap?
MGC and VTI overlap by 72.7% of portfolio weight. They share 173 holdings (MGC holds 173 positions and VTI holds 3505), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MGC and VTI?
The two portfolios are 72.7% 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 VTI?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 44% of the total overlap.
What does MGC own that VTI doesn't?
Nothing. Every position in MGC is also held by VTI. In the other direction, 3332 positions (26.3% of VTI) are unique to VTI.