LPKF Laser: The High-Stakes Wait for LIDE Orders Puts a 300% Rally to the Test

LPKF Laser shares triple on glass substrate hype for AI chips, but first production orders not until 2026; solar revenue drops and losses widen.

The stock has more than tripled since January, but LPKF Laser has yet to sign a single production order for the technology driving the frenzy. The company’s patented LIDE process — which structures glass substrates for advanced chip packaging — has captured the market’s imagination after Nvidia poured $500 million into Corning to replace copper cables with glass in AI systems. LPKF finds itself at the centre of that narrative, and the rally has been breathtaking: a 292% gain year-to-date, with the shares touching €24.30 before slipping 3.6% on Thursday to close at €23.60.

Yet the operational reality tells a different story. First-quarter revenue tumbled to €17.1 million, down sharply from €25.3 million a year earlier. The culprit is a sluggish solar market, still LPKF’s biggest ongoing business. Operating losses deepened to €6.9 million, swinging further into the red. Even order intake, which rose to €24.1 million from €20.5 million, only partly offsets the pain. The book-to-bill ratio of 1.4 signals a pickup in demand, but the first six months of 2026 remain weak, and management’s full-year revenue guidance of €105 million to €120 million implies continued pressure on margins — the company expects a negative adjusted EBIT margin for the year.

The core of the bullish thesis rests on LIDE, a technology that management says holds a roughly decade-long lead over competitors. It can handle complex aluminosilicate glasses, making it a candidate for the next generation of chip packaging. Multiple semiconductor customers are currently testing the process in their labs, and LPKF expects to land its first production orders in the second quarter of 2026. But those initial contracts are likely to be small. A true production ramp — what would justify the current market value — is not expected before 2027, with high volumes coming only in 2029.

That gap between market pricing and commercial reality is stark. Montega Research recently lifted its price target to €15.00 from €9.00, citing a clearer opportunity in advanced semiconductor packaging. Under an optimistic scenario, the bank sees a handful of customers contributing around €35 million in revenue from LIDE in 2027, and by 2028 it envisions group sales exceeding €200 million with EBIT margins north of 15%. Even so, the current share price is already pricing in that success, and Montega maintains a hold rating — the stock has overshot its own fair value.

Behind the scenes, a cost-cutting programme called “North Star” is attempting to reshape the business. The company has closed its Fürth plant and consolidated welding and solar system production in Suhl. Management aims for a double-digit operating margin by 2028. But in the near term, the restructuring adds to the drag on earnings.

Two events in June will test the narrative. The annual general meeting takes place on 4 June in Hannover, followed by an investor forum on 18 June where CEO Klaus Fiedler is scheduled to present the long-term strategy. Investors want concrete updates on LIDE qualification talks — signed production contracts, not lab trials. Without them, the stock’s valuation will rely on hope alone. The market is betting that Q2 2026 delivers what the first quarter could not: a tangible, commercial commitment to the technology.