It tracks an Intellidex-style index focused on the equipment and services segment of the oil and gas industry. Rather than exploration and production companies, it primarily holds the firms that supply drilling and oilfield services to them.

It is well suited for investors looking to bet on an oil price upcycle and expanded drilling activity, as well as those who want concentrated exposure to the energy services sub-sector.

It is a passive (index-tracking) ETF managed by Invesco.

Following an Intellidex-style index that selects oil and gas equipment and services companies, constituents and weights are determined using fundamental metrics. With a focus on oilfield services and drilling equipment suppliers, the ETF tracks the performance of the energy services sub-sector.

• Specialized exposure to the services and equipment segment, not exploration and production
• Fundamental-based Intellidex selection methodology

Assets under management (AUM) stand at $124.9M, and the total expense ratio is 0.63% annually.

Compared with peer oil services ETFs such as OIH and IEZ, its AUM is on the smaller side, which can translate into thinner liquidity.

Performance tends to be highly volatile across oil price and drilling activity cycles, showing resilient upside during energy price rallies and deeper drawdowns during downturns.

Fund flows shift with broader market sentiment toward the energy sector and the direction of oil prices, and investor attention typically rotates into the services sub-sector when expectations for stronger commodities build.

Its focused exposure to the oilfield services sub-sector is a strength, but a high dependence on the oil price cycle creates meaningful volatility, which is a drawback.

The exploration- and production-focused ETFs shown in the table, such as XOP and IEO, offer a different exposure range than the services-focused PXJ, while oil services ETFs like OIH and XES cover the same sub-sector and serve as direct comparables. Other products worth reviewing include IEZ, which provides exposure to oilfield equipment and services, XLE, which spans the broader energy sector, Invesco's energy exploration ETF PXE, and FCG, which centers on natural gas producers.

Here are the points to review before investing in PXJ. Because it is an ETF concentrated in a specific sub-sector, it is important to check the direction of oil prices, volatility, asset size and liquidity, and the fee burden in advance.

During periods of falling oil prices or shrinking drilling budgets, the services segment's drawdowns can be steeper than the broader market, and investors should also keep in mind that the structure's concentration in a single sub-sector limits the diversification benefit.

It is a suitable tool for investors seeking a concentrated bet on the energy services sub-sector. For services-focused exposure, consider PXJ; for an exploration- and production tilt, XOP or IEO; and for broad energy sector exposure, products such as XLE.