CGMU vs SPY: Holdings Overlap
CGMUCapital Group Municipal Income ETF
Capital Group · 2128 holdings · $6.4B · as of 2026-03-31
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
Holdings snapshots are 128 days apart (CGMU: 2026-03-31, SPY: 2026-08-06). 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 CGMU and SPY?
Capital Group Municipal Income ETF (CGMU, by Capital Group) holds 2128 positions; State Street® SPDR® S&P 500® ETF Trust (SPY, by State Street (SPDR)) holds 504. They have 0 holdings in common, and by portfolio weight the two funds are 0.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 0CGMU holds 2128 · SPY holds 504
- Weight in Shared Holdings
- CGMU 0%·SPY 0%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 CGMU
2128 of 2128 positions (100.8% of the fund) are not held by SPY. Showing the top 30 by weight.
- PUERTO RICO CMWLTH0.67%
- TRIBOROUGH NY BRIDGE & TUNNEL AUTH REVENUES0.58%
- Puerto Rico Sales Tax Financing Corp. Sales Tax, Series A-20.57%
- UNIV OF CALIFORNIA REVENUES0.56%
- NEW YORK CITY NY MUNI WTR FIN AUTH WTR & SWR SYS REVENUE0.54%
- MONTGOMERY CNTY MD0.53%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| CGMU | -0.7% | +1.1% | +4.9% | +4.5% | — | — | 3.38% |
| SPY | +3.4% | +14.0% | +23.7% | +21.2% | +13.3% | +15.3% | 0.97% |
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 CGMU vs SPY →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do CGMU and SPY overlap?
CGMU and SPY overlap by 0.0% of portfolio weight. They share 0 holdings (CGMU holds 2128 positions and SPY holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both CGMU and SPY?
The two portfolios are 0.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What does CGMU own that SPY doesn't?
2128 positions (100.8% of CGMU) are unique to CGMU, led by PUERTO RICO CMWLTH, TRIBOROUGH NY BRIDGE & TUNNEL AUTH REVENUES and Puerto Rico Sales Tax Financing Corp. Sales Tax, Series A-2. In the other direction, 504 positions (99.9% of SPY) are unique to SPY.