WOOD DALE, Illinois, May 11, 2026, 17:02 CDT
- Power Solutions International’s net income for the first quarter fell 62% year-over-year, landing at $7.3 million.
- Revenue slipped 5% to $128.6 million, dragged down by softer demand for power systems.
- PSIX shares tumbled Monday. The swings didn’t stop there—after-hours trading piled on more volatility.
Shares of Power Solutions International tumbled Monday, with investors rattled by a sharp first-quarter profit decline and the company’s decision to withhold formal full-year guidance. The engine and power-systems manufacturer had drawn attention as a potential data-center power supplier.
Timing’s crucial here. Data center demand still anchors the bull argument for PSIX, though shipment schedules, customer timelines, and capacity constraints are all slowing the translation of orders into revenue, according to the company.
PSI posted net income of $7.3 million, or 32 cents per diluted share, in the quarter ended March 31. That’s down from $19.1 million, or 83 cents per share, in the same period a year ago. Net sales slipped 5% to $128.6 million, and gross profit, the amount left after production costs, slid 27% to $29.4 million.
CEO Dino Xykis called the quarter “below the strong prior-year period,” citing weaker oil and gas demand, shipment timing in Power Systems, and increased costs from scaling up Wisconsin capacity. Still, he noted that data-center demand “remains solid.” Power Solutions International, Inc.
The margin picture worsened: gross margin dropped to 22.9%, down sharply from 29.7% in the same period last year. Still, that’s a roughly 100 basis point gain compared with the fourth quarter of 2025. One basis point equals 0.01 percentage point.
Power systems sales dropped $10.2 million, the company said, with higher industrial and transportation sales making up some of the gap. Management pointed to sluggish oil and gas demand and choppy data-center orders as the main reasons for the power systems slide.
PSI skipped formal guidance for the full year. For the second quarter, management is targeting revenue roughly matching the first quarter, and anticipates a pickup in the back half of the year as bigger Power Systems orders hit production.
Shares of PSIX took a sharp dive. The stock was last seen at $62.45, off roughly 17.5% from its previous close, after sinking to an intraday bottom of $34.66, according to market data. Data from Seeking Alpha pegged the closing price at $62.45 on Nasdaq, with the stock changing hands at $39.17 in after-hours trading as of 6:01 p.m. Eastern.
The shift was notable next to other industrial-power stocks. Cummins added 3.4%, Generac edged up 0.7% Monday, and, according to Sherwood News, both avoided the kind of sharp intraday drop that hit their peer.
There was also a downside surprise on the benchmark. According to Seeking Alpha, PSIX posted non-GAAP EPS of 36 cents, falling short by 16 cents, and revenue came in $32.21 million under the mark. Sherwood News flagged that revenue missed the $161 million consensus and operating income reached less than half of the $23.7 million expected—although just two analyst estimates were in play.
Second-half recovery might not arrive on investors’ timeline, or could bring slimmer margins. PSI pointed to shipment volumes hinging on customer timing, manufacturing output and supply-chain dynamics, while ongoing ramp-up expenses in Wisconsin aren’t going away yet. In its own filings, the company also flagged risks tied to tariffs, trade rules, getting acquisitions to mesh, and litigation.
The legal shadow still hangs over PSIX. Robbins Geller Rudman & Dowd on Monday told investors who picked up shares between May 8, 2025, and March 2, 2026, that they’ve got until May 19 to push for lead-plaintiff in a securities class action. The suit claims the company played up its readiness for data-center demand and downplayed costs tied to manufacturing capacity. These are, so far, just allegations.
Power Solutions International operates out of Wood Dale, Illinois, turning out emission-certified engines and power systems for use across industrial, power, and transportation sectors. Its lineup covers standby and prime power, microgrids, oil and gas, and data center applications.
