Wall Street Spent July Arguing About AI Chips. The Real Shortage Is Electricity.

Research Desk · July 26, 2026

A Caterpillar generator set. Photo via Wikimedia Commons. [https://commons.wikimedia.org/wiki/File:Caterpillar_(Olympian)_Generator_Set.jpg.]

The Philadelphia Semiconductor Index fell 11% in the week to July 17, leaving it roughly 24% below its late-June high and technically inside a bear market. The argument driving the selling was not about demand for chips. It was about whether the enormous sums being committed to artificial-intelligence infrastructure will ever earn a return, and whether the companies writing those checks can keep writing them. Almost every headline framed the question through silicon.

Which misses where the constraint actually sits now. Over the past two years the binding limit on AI deployment has moved. Advanced processors can be ordered on a purchase order and delivered in months. Electricity cannot. A new site needing half a gigawatt of continuous power faces a utility interconnection queue that in many parts of the country runs for years, and no amount of software cleverness shortens it. That constraint has a physical solution, and Caterpillar (NYSE: CAT) is the largest supplier of it in the world.

When the Utility Says Four Years

Picture signing a lease on a restaurant space and being told the gas hookup will take four years. You would not wait four years. You would put your own tanks and generators behind the building and start cooking. Now scale that decision up to an operator with a fifty-billion-dollar AI budget and a facility that needs the power output of a small city.

The industry term is behind-the-meter power: the operator builds its own generating plant on the site rather than waiting for the grid. It runs on large reciprocating gas engines and industrial turbines, and Caterpillar is the world’s largest manufacturer of generator sets. The important detail is a shift in the mix. Historically these machines were sold as standby units that sit idle and switch on during an outage. What data centers increasingly want is prime power, machines that run continuously as the primary source. A generator that runs all day needs parts, oil, and service forever, which is why prime power carries far more long-term aftermarket revenue than standby equipment. Management has set a goal of $30 billion in annual services sales by 2030.

$63 Billion, With Penalties Attached

The first quarter, reported on April 30, was the strongest demand quarter the company has posted in years. Revenue reached $17.4 billion, up 22% year over year. Adjusted earnings of $5.54 per share rose 30% and cleared the $4.64 consensus by roughly 20%, on an adjusted operating margin of 18%. Power and Energy sales grew 22% to $7.0 billion, with sales to users up 32% and power generation sales to users up 48%. Resource Industries recorded its highest quarterly order intake since 2012. Caterpillar returned $5.7 billion to shareholders through buybacks and dividends in the three months.

The number that matters most sits off the income statement. Backlog closed the quarter at a record $63 billion, an increase of $28 billion or 79% from a year earlier and about $12 billion higher than the prior quarter, with all three primary segments contributing. Chief executive Joe Creed said total first-quarter orders were an all-time record. Behind that figure are six separate agreements covering at least one gigawatt of equipment each for prime power, including a framework deal with ProPower for up to 2.1 gigawatts over five years. Creed noted that the large reciprocating engine backlog has grown more than 3.5 times since the company announced its first capacity expansion in January 2024. Crucially, these are not letters of intent. Major customer agreements carry cancellation penalties, and in some cases upfront prepayments, before Caterpillar commits additional capital. Management raised full-year guidance to low double-digit sales growth and lifted its long-term target to 6% to 9% annual growth through 2030, with power generation sales expected to more than triple by then.

The Bet That Comes Due in 2027

Meeting that demand requires a wager, and it is worth stating plainly. Caterpillar is expanding large reciprocating engine capacity to nearly three times its 2024 level, roughly fifteen gigawatts a year once complete, with turbine capacity going to two and a half times. The heavy capital spending lands between 2027 and 2029, which is precisely the window investors are currently arguing about. Cancellation penalties and prepayments reduce that exposure. They do not eliminate it. If the buildout cools before the new factories fill, the fixed costs belong to Caterpillar.

Two smaller items deserve a mention. Tariffs are expected to cost $2.2 billion to $2.4 billion during 2026, a situation management describes as fluid, with roughly $700 million of it landing in the second quarter alone. And the 38% sales jump in Construction Industries last quarter came partly from a seasonal dealer inventory build that ran higher than management expected, which is demand borrowed from later quarters rather than created. For perspective on the cycle underneath all of this: full-year 2025 profit fell about 18% even as revenue rose.

A Technology Multiple on a Cyclical

At roughly $889 the stock carries a market capitalization near $410 billion and trades at about 44 times trailing earnings of $20.10 per share. Shares are up roughly 118% over the past year and sit about 16% below the record close of $1,062.93 set on June 30. The dividend was recently raised to $1.63 per quarter, which works out to a yield under 1%, so the shareholder return here comes through buybacks and growth rather than income. Coverage is constructive: the average target across 28 analysts sits near $970, Citi recently moved to $1,100 and Oppenheimer to $1,105, with Truist at $1,218 and Barclays holding at neutral.

The bear case is the multiple. Caterpillar has spent most of its history trading in the teens and twenties on earnings, as cyclical manufacturers generally do. If enthusiasm for the AI buildout cools and that multiple compresses toward 25 times, a level still above its long-run average, the math lands near $500. The options market is currently pricing a one-year range with a floor around $560, and the 52-week low of $405.46 was set inside the past twelve months. That is the honest shape of the risk: the backlog can be entirely real and the shares can still fall a long way from here.

The Bottom Line

July’s selloff was an argument about whether AI spending is sustainable and whether it earns its keep. Caterpillar does not settle that argument. What it offers is a way to own the buildout at the point in the chain where demand is contractual rather than aspirational, backed by penalties, prepayments, and a backlog that grew 79% in a year while the chip index fell into a bear market. The catch is the entry price. Investors are being asked to pay a technology multiple for a company that makes engines and earthmovers, at the moment its end market is running at maximum enthusiasm. Second-quarter results arrive on August 4.