The world needs infrastructure. The U.S. needs investment for restoring and upgrading its existing infrastructure, and the developing world needs investment in its infrastructure to support the growth in its economy and urban areas.

According to a 2021 report from the American Society of Civil Engineers (ASCE), there's a funding gap of some $2.59 trillion over the next decade needed to "maintain a state of good repair." Everything points to significant investment in infrastructure over the next 10 years. 

Road construction.
Image source: Getty Images.

The investment is overdue. Infrastructure touches every aspect of our daily lives. Airports, roads, rail, bridges, ports, and transit are crucial for transportation. Utilities such as water, power, and gas are essential for daily living. Few modern economies can survive without wastewater, waste treatment, dams, parks, and schools. The latest ASCE report notes that the most significant needs for investment over the next decade are in surface transportation ($2.8 trillion), drinking water/wastewater/stormwater systems ($1 trillion), and schools ($870 million).

Top Infrastructure ETFs list

Given this backdrop, it's a good idea to look at getting broad-based exposure to the theme by investing in an exchange-traded fund (ETF). Instead of picking winners within the sector,  ETFs give you exposure to a specific industry, theme, or geography. The three leading infrastructure ETFs by assets under management are:

Data source: Yahoo! Finance. Data current as of January 24, 2023.
Top Infrastructure ETFs Ticker Symbol Assets Under Management (AUM)
Global X U.S. Infrastructure Development ETF (NYSEMKT:PAVE) $3.5 billion
iShares Global Infrastructure ETF (NASDAQ:IGF) $4.0 billion
FlexShares STOXX Global Broad Infrastructure Index Fund (NYSEMKT:NFRA) $2.4 billion

Let's take a more detailed look at each one.

1. Global X U.S. Infrastructure Development ETF

The Global X U.S. Infrastructure Development ETF is different from others in that it only invests in U.S. companies. Its focus is on investing in businesses that will benefit from an increase in U.S. infrastructure spending. In a nutshell, Global X stands to gain the most from infrastructure investment.

The ETF's focus also gives its management a lot of latitude to invest in a broader range of companies than the others, which are weighted toward utilities, transportation, and energy. By contrast, the Global X ETF has a relatively higher mix of industrial-focused businesses, with electrical products (11.6% of assets), industrial machinery (9.6%), and steel (9.2%) as three of its four biggest industries. Its relatively loose remit means it holds about 100 equities, so you can think of it as an ETF tracking the U.S. infrastructure and industrial sectors.

Its top five equity holdings include:

  • Steel and steel product manufacturer Nucor Corp (NUE -1.08%): 4.1%
  • Energy utility Sempra (SRE 0.73%): 3.2%
  • Agricultural and construction equipment company Deere (DE -0.65%): 3.1%
  • West Coast railroad Union Pacific (UNP -1.82%): 3%
  • East Coast railroad CSX (CSX -3.02%): 3%

The ETF's holdings are relatively diversified, its positions are small, and it holds many industrial stalwarts. For example, automation and climate control company Emerson Electric (EMR -0.14%), electrical products company Eaton Corporation (ETN 1.9%), and automation and motion control companies Rockwell Automation (ROK -0.28%) and Parker Hannifin (PH -0.74%) all have a 2% to 3% weighting within the ETF. There's even a place for industrial technology stock Trimble (TRMB -0.3%) in the ETF, with an almost 2% weighting.

The ETF has an expense ratio of 0.47%, which is in line with its peers. However, its wider exposure to equities in the industrial sector means relatively more minor exposure to traditionally dividend-heavy industries such as utilities and railroads. Consequently, the ETF's yield stands at just 0.4%.

You can consider the fund as a low-yielding ETF with heavy exposure to U.S. infrastructure spending that will outperform or underperform its peers, depending on the general performance of the U.S. industrial sector.

A freight railroad.
Image source: Getty Images.

2. iShares Global Infrastructure ETF

According to the ETF's literature, the iShares Global Infrastructure ETF invests in transportation, communications, water, electricity services, and other infrastructure stocks worldwide. However, when examining the ETF's holdings, it's far from clear if it has significant communications holdings. About 40% of its holdings are in utility stocks, 36% in transportation stocks, and 23% in energy.

What is clear is that the ETF is global in scale. Only 39% of its 75 holdings are in the U.S. and 12% in Canada; the rest are outside North America. A quick look at its largest holdings demonstrates its international flavor:

  • Energy pipeline company Enbridge (ENB 0.68%): 5.5%
  • Renewable energy power company NextEra Energy (NEE 0.54%): 4.9%
  • Australian toll road company Transurban Group (TCL 0.08%): 4.8%
  • Spanish airport operator Aena (BME:AENA): 4.6%
  • Canadian gas pipeline storage company TC Energy (TRP -0.33%): 3.8%

The ETF's expense ratio of 0.43% is slightly less than the other two ETFs discussed here, and its exposure to traditionally high-yielding core infrastructure companies helps give it a dividend yield of 2.7%, the highest of the three.

Energy pipelines.
Image source: Getty Images.

The overarching theme of the ETF is to give investors exposure to the megatrend of urbanization and the need to build supporting infrastructure. Consequently, airports, ports, energy, and utilities (electric, water, gas, and renewable energy) are vital investments for the ETF.

You can think of the iShares ETF as a play on global infrastructure spending. Although it may not have the same exposure to the U.S. industrial sector as the Global X ETF, it's more of a pure-play infrastructure ETF.

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3. FlexShares STOXX Global Broad Infrastructure Index Fund

The FlexShares STOXX Global Broad Infrastructure Index Fund is closer to the iShares ETF than the Global X ETF. It's a global ETF with about 40% of its holdings in the U.S., 16% in Canada, and the rest outside North America. Although its geographic exposure is similar to the iShares ETF, one key difference is the heavy exposure to communication stocks in its holdings.

Energy stocks make up around 30% of the ETF holdings, with communication stocks at a similar level. Transportation (23%) and utilities (8.1%) comprise the other two major sectors. These industry exposures are reflected in the ETFs top holdings:

  • Canadian National Railway (CNI -5.05%): 4.2%
  • Media and communications company Comcast (CMCSA -0.37%): 3.4%
  • Entertainment and communications company Verizon Communications (VZ -0.53%): 3.2%
  • German mail and logistics company Deutsche Post: 3%
  • Canadian Pacific Railway (CP -6.6%): 3%
  • Media and communications company AT&T (T 1.88%): 2.6%

The 0.47% expense ratio of the fund is slightly more than the iShares ETF, and its dividend yield of 2.2% is lower than that of its peer. Another difference with the two other funds comes from the number of holdings in the FlexShares ETF. The fund has about 240 holdings, which gives it strongly correlated exposure to its chosen end markets.

The FlexShares offering can be viewed as a global infrastructure plus communications ETF. If you're looking for a more pure-play U.S. infrastructure ETF, then the Global X ETF is better, and the iShares offering is probably the best global pure-play infrastructure ETF out there.

Lee Samaha has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Canadian Pacific Kansas City, Emerson Electric, Enbridge, NextEra Energy, Transurban Group, and Union Pacific. The Motley Fool recommends Canadian National Railway, Comcast, Deere, Tc Energy, Trimble, and Verizon Communications. The Motley Fool has a disclosure policy.