Defence, Water and Infrastructure: When Government Spending Is the Thesis
August 19, 2026 · 2 min read · by ETFWinner Research
Some sector funds do not track an economic cycle at all — they track a budget. That changes what you should watch and how long you should wait.
A distinct group of sector funds share a feature that separates them from energy or financials: their revenue comes substantially from governments. Defence contractors, water utilities and infrastructure builders live on procurement cycles and public budgets, not consumer demand.
Why the budget cycle behaves differently
Government spending is slow to start and slow to stop. A defence procurement programme or an infrastructure bill commits money over years, which produces unusually visible revenue for the companies involved — but also means the market prices in the whole programme long before the money is spent.
That creates a specific trap: the news that makes a defence or infrastructure fund obvious to buy is usually the news that has already moved it. The opportunity, if there is one, sits in the durability of the spending after the headlines fade.
The funds and what they cost
ITA concentrates on aerospace and defence contractors. PAVE targets domestic infrastructure builders and materials suppliers. PHO and CGW approach water differently — one focused on a single country's water industry, the other spreading globally at 0.57%.
These funds price above broad-market levels, which is normal for narrow mandates. The relevant question is whether the policy tailwind is large and durable enough to clear that hurdle.
| Ticker | Fund | Expense | YTD | Yield | AUM |
|---|---|---|---|---|---|
| ITA | iShares U.S. Aerospace & Defense ETF | 0.40% | — | — | $6.5B |
| PAVE | Global X U.S. Infrastructure Development ETF | 0.47% | — | — | $8B |
| PHO | Invesco Water Resources ETF | 0.60% | — | — | $2B |
| CGW | Invesco S&P Global Water Index ETF | 0.57% | — | — | $1B |
The water case is the most interesting
Water is the rare theme where the demand driver is close to certain — supply is finite, infrastructure in most countries is ageing, and consumption keeps rising. The difficulty is that much of the sector is regulated utilities, whose returns are capped by regulators precisely because the service is essential.
So a structurally certain need does not automatically translate into outsized returns. It is a useful reminder that the strength of a theme and the profitability of investing in it are separate questions.
What to watch instead of price
- Budget authorisations, not announcements. Approved and appropriated spending is real; announced intentions frequently shrink.
- Order backlogs. For defence and infrastructure, backlog is a far better forward indicator than quarterly revenue.
- Regulatory rate decisions. For water and utilities, the allowed return set by regulators effectively caps the upside.
ETFs mentioned in this guide
iShares U.S. Aerospace & Defense ETF
Invesco Water Resources ETF
Invesco S&P Global Water Index ETF
Global X U.S. Infrastructure Development ETF
Frequently asked questions
Are defence ETFs a good long-term investment?
They depend on sustained government procurement rather than consumer demand, which makes revenue visible but also means markets price in spending programmes early. Backlog trends matter more than headlines.
Why do water ETFs underperform despite strong demand?
Much of the sector is regulated utilities whose returns are capped by regulators. Essential demand does not automatically produce high investment returns.
What is the difference between PHO and CGW?
PHO focuses on a single country's water industry while CGW takes a global approach, which changes both the regulatory exposure and the currency profile.
Do infrastructure ETFs benefit immediately from spending bills?
Rarely. Markets typically price the announcement quickly, while actual revenue arrives over years as projects are awarded and built.