MGV vs VOO: Holdings Overlap
MGVVanguard Mega Cap Value Index Fund
Vanguard · 120 holdings · $13.6B · as of 2026-05-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
Holdings snapshots are 61 days apart (MGV: 2026-05-31, VOO: 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 MGV and VOO?
Vanguard Mega Cap Value Index Fund (MGV, by Vanguard) holds 120 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 119 holdings in common, and by portfolio weight the two funds are 35.7% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 35.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 119MGV holds 120 · VOO holds 504
- Weight in Shared Holdings
- MGV 98%·VOO 36%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
Sector Breakdown
| Sector | MGV | VOO |
|---|---|---|
| Information Technology | 18.0% | 32.7% |
| Financials | 21.6% | 12.4% |
| Health Care | 15.9% | 9.5% |
| Industrials | 13.6% | 9.0% |
| Consumer Staples | 11.0% | 5.2% |
| Other Sectors | 18.3% | 30.9% |
| Unclassified | 1.1% | 0.0% |
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. “Unclassified” is weight we could not classify (1% of MGV, 0% of VOO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| MGV | +1.6% | +19.3% | +30.6% | +18.7% | +13.1% | +13.0% | 1.83% |
| VOO | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.03% |
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 MGV vs VOO →
Shared Holdings(119)
The top 10 shared positions account for 27% of the overlap, led by BRK-B, JPM and XOM.
 BRK-BBerkshire Hathaway, Inc., Class B | 3.15% | 1.57% | 1.57% |
|---|---|---|---|
 JPMJPMorgan Chase & Co. COM | 3.64% | 1.34% | 1.34% |
 XOMExxon Mobil Corp. COM | 2.91% | 1.27% | 1.27% |
 JNJJohnson & Johnson COM | 2.61% | 1.05% | 1.05% |
 WMTWalmart Inc COM | 2.44% | 0.97% | 0.97% |
 COSTCostco Wholesale Corporation COM | 2.04% | 0.79% | 0.79% |
 CVXChevron Corp. COM | 1.66% | 0.69% | 0.69% |
 ABBVAbbVie Inc. COM | 1.85% | 0.69% | 0.69% |
 MUMicron Technology Inc. COM | 5.26% | 0.68% | 0.68% |
 PGThe Procter & Gamble Co. COM | 1.60% | 0.60% | 0.60% |
 CATCaterpillar Inc COM | 1.96% | 0.59% | 0.59% |
 HDHome Depot, Inc. (The) | 1.52% | 0.59% | 0.59% |
 BACBank of America Corp. COM | 1.60% | 0.56% | 0.56% |
 CSCOCisco Systems, Inc. COM | 2.06% | 0.55% | 0.55% |
 MRKMerck & Co., Inc COM | 1.41% | 0.53% | 0.53% |
 GEGeneral Electric Co. | 1.55% | 0.53% | 0.53% |
 KOCoca-Cola Co (The) COM | 1.31% | 0.53% | 0.53% |
 AMATApplied Materials Inc. COM | 1.72% | 0.48% | 0.48% |
 RTXRTX Corp. COM | 1.16% | 0.46% | 0.46% |
 PMPhilip Morris International Inc. COM | 1.33% | 0.46% | 0.46% |
 WFCWells Fargo & Co. COM | 1.15% | 0.44% | 0.44% |
 UNHUnitedHealth Group Inc. COM | 1.66% | 0.44% | 0.44% |
 GSGoldman Sachs Group, Inc. (The) | 1.39% | 0.43% | 0.43% |
 LINLinde PLC COM EUR0.001 | 1.11% | 0.41% | 0.41% |
 IBMInternational Business Machines Corp. COM | 1.34% | 0.41% | 0.41% |
Frequently Asked Questions
How much do MGV and VOO overlap?
MGV and VOO overlap by 35.7% of portfolio weight. They share 119 holdings (MGV holds 120 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both MGV and VOO?
The two portfolios are 35.7% 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 MGV and VOO?
The largest positions held by both funds are BRK-B, JPM, XOM, JNJ and WMT. Together the top 10 shared positions account for 27% of the total overlap.
What does MGV own that VOO doesn't?
1 positions (1.1% of MGV) are unique to MGV, led by BRK-A. In the other direction, 385 positions (64.0% of VOO) are unique to VOO.