ESGU vs USMC: Holdings Overlap
ESGUiShares ESG Aware MSCI USA ETF
iShares · 287 holdings · $18.3B · as of 2026-05-31
USMCPrincipal U.S. Mega-Cap ETF
Principal · 26 holdings · $3.6B · as of 2026-03-31
Holdings snapshots are 61 days apart (ESGU: 2026-05-31, USMC: 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 ESGU and USMC?
iShares ESG Aware MSCI USA ETF (ESGU, by iShares) holds 287 positions; Principal U.S. Mega-Cap ETF (USMC, by Principal) holds 26. They have 25 holdings in common, and by portfolio weight the two funds are 43.1% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 43.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 25ESGU holds 287 · USMC holds 26
- Weight in Shared Holdings
- ESGU 44%·USMC 97%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 ESGU
262 of 287 positions (56.2% of the fund) are not held by USMC. Showing the top 30 by weight.
Sector Breakdown
| Sector | ESGU | USMC |
|---|---|---|
| Information Technology | 38.9% | 26.6% |
| Financials | 11.4% | 20.4% |
| Communication Services | 9.8% | 14.1% |
| Consumer Staples | 4.1% | 10.2% |
| Consumer Discretionary | 9.2% | 8.2% |
| Other Sectors | 26.5% | 20.2% |
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 |
|---|---|---|---|---|---|---|---|
| ESGU | +3.3% | +14.3% | +23.8% | +20.9% | +12.2% | — | 0.90% |
| USMC | +2.9% | +11.9% | +21.9% | +20.8% | +14.5% | — | 0.74% |
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 ESGU vs USMC →
Shared Holdings(25)
The top 10 shared positions account for 78% of the overlap, led by NVDA, AAPL and MSFT.
 NVDANVIDIA Corp. COM | 7.77% | 7.57% | 7.57% |
|---|---|---|---|
 AAPLApple Inc. COM | 6.83% | 6.70% | 6.70% |
 MSFTMicrosoft Corp. COM | 4.73% | 4.91% | 4.73% |
 AMZNAmazon.com, Inc. COM | 3.82% | 3.62% | 3.62% |
 AVGOBroadcom Inc COM | 3.07% | 4.50% | 3.07% |
 METAMeta Platforms, Inc., Class A | 1.94% | 4.11% | 1.94% |
 TSLATesla Inc COM | 1.85% | 2.36% | 1.85% |
 MUMicron Technology Inc. COM | 1.66% | 2.95% | 1.66% |
 LLYEli Lilly & Co. COM | 1.33% | 2.23% | 1.33% |
 GOOGLAlphabet Inc. CAP STK CL A | 1.33% | 5.37% | 1.33% |
 JPMJPMorgan Chase & Co. COM | 1.17% | 4.56% | 1.17% |
 VVisa, Inc., Class A | 0.95% | 4.39% | 0.95% |
 CATCaterpillar Inc COM | 0.69% | 2.43% | 0.69% |
 XOMExxon Mobil Corp. COM | 0.69% | 2.84% | 0.69% |
 ABBVAbbVie Inc. COM | 0.65% | 3.37% | 0.65% |
 BRK-BBerkshire Hathaway, Inc., Class B | 0.63% | 3.42% | 0.63% |
 MAMasterCard Incorporated CL A | 0.63% | 4.49% | 0.63% |
 COSTCostco Wholesale Corporation COM | 0.61% | 4.58% | 0.61% |
 JNJJohnson & Johnson COM | 0.61% | 3.54% | 0.61% |
 HDHome Depot, Inc. (The) | 0.56% | 2.20% | 0.56% |
 PGThe Procter & Gamble Co. COM | 0.52% | 3.11% | 0.52% |
 GEGeneral Electric Co. | 0.46% | 2.99% | 0.46% |
 BACBank of America Corp. COM | 0.46% | 3.52% | 0.46% |
 NFLXNetflix, Inc. COM | 0.44% | 4.65% | 0.44% |
 CVXChevron Corp. COM | 0.20% | 2.83% | 0.20% |
Frequently Asked Questions
How much do ESGU and USMC overlap?
ESGU and USMC overlap by 43.1% of portfolio weight. They share 25 holdings (ESGU holds 287 positions and USMC holds 26), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ESGU and USMC?
The two portfolios are 43.1% 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 ESGU and USMC?
The largest positions held by both funds are NVDA, AAPL, MSFT, AMZN and AVGO. Together the top 10 shared positions account for 78% of the total overlap.
What does ESGU own that USMC doesn't?
262 positions (56.2% of ESGU) are unique to ESGU, led by GOOG, AMD and INTC. In the other direction, 1 positions (2.5% of USMC) are unique to USMC.