PHO vs VOO: Holdings Overlap
PHOInvesco Water Resources ETF
Invesco · 36 holdings · $2.1B · as of 2026-04-30
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
Holdings snapshots are 30 days apart (PHO: 2026-04-30, 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 PHO and VOO?
Invesco Water Resources ETF (PHO, by Invesco) holds 36 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 9 holdings in common, and by portfolio weight the two funds are 0.4% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 9PHO holds 36 · VOO holds 504
- Weight in Shared Holdings
- PHO 49%·VOO 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 PHO
27 of 36 positions (50.8% of the fund) are not held by VOO.
Sector Breakdown
| Sector | PHO | VOO |
|---|---|---|
| Industrials | 55.4% | 9.0% |
| Information Technology | 13.0% | 32.7% |
| Utilities | 12.8% | 2.5% |
| Financials | 0.0% | 12.4% |
| Communication Services | 0.0% | 10.5% |
| Other Sectors | 16.3% | 32.6% |
| Unclassified | 2.5% | 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 (2% of PHO, 0% of VOO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| PHO | +5.7% | +4.5% | +3.2% | +8.8% | +5.6% | +12.2% | 0.55% |
| 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 PHO vs VOO →
Shared Holdings(9)
The top 9 shared positions account for 100% of the overlap, led by ECL, ROP and WAT.
 ECLEcolab Inc. COM | 7.14% | 0.12% | 0.12% |
|---|---|---|---|
 ROPRoper Technologies Inc COM | 8.57% | 0.07% | 0.07% |
 WATWaters Corporation COM | 8.18% | 0.05% | 0.05% |
 XYLXylem, Inc. COM | 3.85% | 0.05% | 0.05% |
 AWKAmerican Water Works Company, Inc. COM | 6.95% | 0.05% | 0.05% |
 VLTOVeralto Corp. COM SHS | 3.83% | 0.04% | 0.04% |
 PNRPentair PLC COM USD0.01 | 3.44% | 0.03% | 0.03% |
 IEXIdex Corporation COM | 4.39% | 0.03% | 0.03% |
 AOSSmith(Ao)Corp COM | 2.85% | 0.01% | 0.01% |
Frequently Asked Questions
How much do PHO and VOO overlap?
PHO and VOO overlap by 0.4% of portfolio weight. They share 9 holdings (PHO holds 36 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both PHO and VOO?
The two portfolios are 0.4% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of PHO and VOO?
The largest positions held by both funds are ECL, ROP, WAT, XYL and AWK. Together the top 9 shared positions account for 100% of the total overlap.
What does PHO own that VOO doesn't?
27 positions (50.8% of PHO) are unique to PHO, led by FERG, MLI and CNM. In the other direction, 495 positions (99.3% of VOO) are unique to VOO.