BBUS vs MGC: Holdings Overlap
BBUSJpmorgan Betabuilders U.S. Equity ETF
JPMorgan · 494 holdings · $8.9B · as of 2026-04-30
MGCVanguard Mega Cap Index Fund
Vanguard · 173 holdings · $10.3B · as of 2026-05-31
Holdings snapshots are 31 days apart (BBUS: 2026-04-30, MGC: 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 BBUS and MGC?
Jpmorgan Betabuilders U.S. Equity ETF (BBUS, by JPMorgan) holds 494 positions; Vanguard Mega Cap Index Fund (MGC, by Vanguard) holds 173. They have 171 holdings in common, and by portfolio weight the two funds are 81.9% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 81.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 171BBUS holds 494 · MGC holds 173
- Weight in Shared Holdings
- BBUS 83%·MGC 99%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 BBUS
323 of 494 positions (16.7% of the fund) are not held by MGC. Showing the top 30 by weight.
Sector Breakdown
| Sector | BBUS | MGC |
|---|---|---|
| Information Technology | 34.4% | 42.4% |
| Communication Services | 11.4% | 12.2% |
| Financials | 12.0% | 10.7% |
| Consumer Discretionary | 10.0% | 9.7% |
| Industrials | 8.9% | 6.4% |
| Other Sectors | 22.7% | 18.1% |
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 |
|---|---|---|---|---|---|---|---|
| BBUS | +3.5% | +13.7% | +23.1% | +21.3% | +12.9% | — | 0.98% |
| MGC | +3.6% | +13.6% | +24.3% | +22.7% | +14.0% | +16.2% | 0.89% |
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 BBUS vs MGC →
Shared Holdings(171)
The top 10 shared positions account for 47% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 7.53% | 9.10% | 7.53% |
|---|---|---|---|
 AAPLApple Inc. COM | 6.41% | 8.55% | 6.41% |
 MSFTMicrosoft Corp. COM | 4.88% | 6.24% | 4.88% |
 AMZNAmazon.com, Inc. COM | 4.19% | 4.88% | 4.19% |
 GOOGLAlphabet Inc. CAP STK CL A | 3.61% | 4.13% | 3.61% |
 AVGOBroadcom Inc COM | 3.13% | 3.95% | 3.13% |
 GOOGAlphabet Inc. CAP STK CL C | 3.11% | 3.25% | 3.11% |
 METAMeta Platforms, Inc., Class A | 2.16% | 2.58% | 2.16% |
 TSLATesla Inc COM | 1.73% | 2.29% | 1.73% |
 BRK-BBerkshire Hathaway, Inc., Class B | 1.40% | 1.53% | 1.40% |
 JPMJPMorgan Chase & Co. COM | 1.36% | 1.41% | 1.36% |
 LLYEli Lilly & Co. COM | 1.20% | 1.75% | 1.20% |
 XOMExxon Mobil Corp. COM | 1.03% | 1.13% | 1.03% |
 MUMicron Technology Inc. COM | 0.94% | 2.04% | 0.94% |
 AMDAdvanced Micro Devices Inc. COM | 0.93% | 1.57% | 0.93% |
 WMTWalmart Inc COM | 0.91% | 0.95% | 0.91% |
 VVisa, Inc., Class A | 0.89% | 1.02% | 0.89% |
 JNJJohnson & Johnson COM | 0.89% | 1.01% | 0.89% |
 COSTCostco Wholesale Corporation COM | 0.73% | 0.79% | 0.73% |
 CATCaterpillar Inc COM | 0.67% | 0.76% | 0.67% |
 INTCIntel Corporation COM | 0.66% | 0.86% | 0.66% |
 MAMasterCard Incorporated CL A | 0.66% | 0.73% | 0.66% |
 NFLXNetflix, Inc. COM | 0.64% | 0.68% | 0.64% |
 ABBVAbbVie Inc. COM | 0.60% | 0.72% | 0.60% |
 CSCOCisco Systems, Inc. COM | 0.58% | 0.80% | 0.58% |
Frequently Asked Questions
How much do BBUS and MGC overlap?
BBUS and MGC overlap by 81.9% of portfolio weight. They share 171 holdings (BBUS holds 494 positions and MGC holds 173), based on each fund's latest SEC-reported holdings.
Is it redundant to own both BBUS and MGC?
The two portfolios are 81.9% 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 BBUS and MGC?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and GOOGL. Together the top 10 shared positions account for 47% of the total overlap.
What does BBUS own that MGC doesn't?
323 positions (16.7% of BBUS) are unique to BBUS, led by STX, WDC and VRT. In the other direction, 2 positions (0.6% of MGC) are unique to MGC.