IVV vs MGV: Holdings Overlap
iShares · 503 holdings · $901.0B · as of 2026-03-31
MGVVanguard Mega Cap Value Index Fund
Vanguard · 120 holdings · $13.6B · as of 2026-05-31
Holdings snapshots are 61 days apart (IVV: 2026-03-31, MGV: 2026-05-31). 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 IVV and MGV?
iShares Core S&P 500 ETF (IVV, by iShares) holds 503 positions; Vanguard Mega Cap Value Index Fund (MGV, by Vanguard) holds 120. They have 119 holdings in common, and by portfolio weight the two funds are 35.8% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 35.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 119IVV holds 503 · MGV holds 120
- Weight in Shared Holdings
- IVV 36%·MGV 98%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 IVV
384 of 503 positions (64.0% of the fund) are not held by MGV. Showing the top 30 by weight.
Sector Breakdown
| Sector | IVV | MGV |
|---|---|---|
| Information Technology | 32.6% | 18.0% |
| Financials | 12.6% | 21.6% |
| Health Care | 9.4% | 15.9% |
| Industrials | 9.0% | 13.6% |
| Consumer Staples | 5.2% | 11.0% |
| Other Sectors | 30.9% | 18.3% |
| Unclassified | 0.0% | 1.1% |
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. “Unclassified” is weight we could not classify (0% of IVV, 1% of MGV).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IVV | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.05% |
| MGV | +1.6% | +19.3% | +30.6% | +18.7% | +13.1% | +13.0% | 1.83% |
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 IVV vs MGV →
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 | 1.57% | 3.15% | 1.57% |
|---|---|---|---|
 JPMJPMorgan Chase & Co. COM | 1.42% | 3.64% | 1.42% |
 XOMExxon Mobil Corp. COM | 1.27% | 2.91% | 1.27% |
 JNJJohnson & Johnson COM | 1.05% | 2.61% | 1.05% |
 WMTWalmart Inc COM | 0.97% | 2.44% | 0.97% |
 COSTCostco Wholesale Corporation COM | 0.79% | 2.04% | 0.79% |
 CVXChevron Corp. COM | 0.69% | 1.66% | 0.69% |
 ABBVAbbVie Inc. COM | 0.69% | 1.85% | 0.69% |
 MUMicron Technology Inc. COM | 0.68% | 5.26% | 0.68% |
 PGThe Procter & Gamble Co. COM | 0.60% | 1.60% | 0.60% |
 CATCaterpillar Inc COM | 0.59% | 1.96% | 0.59% |
 HDHome Depot, Inc. (The) | 0.58% | 1.52% | 0.58% |
 BACBank of America Corp. COM | 0.58% | 1.60% | 0.58% |
 CSCOCisco Systems, Inc. COM | 0.55% | 2.06% | 0.55% |
 MRKMerck & Co., Inc COM | 0.53% | 1.41% | 0.53% |
 GEGeneral Electric Co. | 0.53% | 1.55% | 0.53% |
 KOCoca-Cola Co (The) COM | 0.53% | 1.31% | 0.53% |
 AMATApplied Materials Inc. COM | 0.48% | 1.72% | 0.48% |
 RTXRTX Corp. COM | 0.46% | 1.16% | 0.46% |
 PMPhilip Morris International Inc. COM | 0.46% | 1.33% | 0.46% |
 GSGoldman Sachs Group, Inc. (The) | 0.45% | 1.39% | 0.45% |
 WFCWells Fargo & Co. COM | 0.44% | 1.15% | 0.44% |
 UNHUnitedHealth Group Inc. COM | 0.44% | 1.66% | 0.44% |
 LINLinde PLC COM EUR0.001 | 0.41% | 1.11% | 0.41% |
 IBMInternational Business Machines Corp. COM | 0.40% | 1.34% | 0.40% |
Frequently Asked Questions
How much do IVV and MGV overlap?
IVV and MGV overlap by 35.8% of portfolio weight. They share 119 holdings (IVV holds 503 positions and MGV holds 120), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVV and MGV?
The two portfolios are 35.8% 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 IVV and MGV?
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 IVV own that MGV doesn't?
384 positions (64.0% of IVV) are unique to IVV, led by NVDA, AAPL and MSFT. In the other direction, 1 positions (1.1% of MGV) are unique to MGV.