Musk Called ASML Europe's Greatest Company — But Can a Tweet Justify a 54x Earnings Multiple?

Shares of ASML Holding surged as much as 6.5% on June 8 after Elon Musk declared on X that the Dutch chipmaker is "arguably the greatest company in Europe," a weekend endorsement that landed just ahead of his virtual appearance at ASML's private technology conference on June 9–10. Musk will join ASML CEO Christophe Fouquet for a discussion on AI, robotics, space, and — critically — the Terafab semiconductor project. The rally lifted ASML toward a $674 billion market cap, briefly making it Europe's most valuable company ever. Here's what shareholders need to weigh:

Terafab Could Be One of the Biggest Single Orders in ASML's History. Terafab, a joint venture announced in March 2026 by SpaceX and Tesla — with Intel joining in April — targets 2nm-class chip production at a cost of at least $55 billion, with potential expansion to $119 billion. Because it targets leading-edge production, there is no path to building this fab without ASML's equipment.

A modern leading-edge fab requires 80 to 100 lithography scanners to operate at capacity. But hype is not a purchase order — the conference will be the immediate test of whether Musk translates his endorsement into binding commitments.

Wall Street Is Already Pricing In the Upside. Bank of America raised its target to €1,921, JPMorgan to €1,900, and Morgan Stanley to €1,660 — all with buy-equivalent ratings. Yet the stock trades at roughly 54x trailing earnings, well above its five-year median of about 39x.

Morningstar issued a Sell rating in May at current levels , and valuation firm GuruFocus pegs ASML at over 50% overvalued versus its model.

China Export Risk Looms Over the Revenue Line. The proposed MATCH Act in the US Congress could ban ASML's remaining equipment sales to China, costing an estimated 17% of revenue.

ASML's CEO has publicly opposed the legislation, arguing further restrictions would merely accelerate China's domestic chip development. Any legislative progress would directly undercut the growth narrative Wall Street is buying.

The Fundamentals Are Strong — For Now. Q1 2026 delivered €8.8 billion in revenue and €2.8 billion in net profit, with full-year guidance of €36–40 billion in sales at 51–53% gross margins.

The stock is up 50% year-to-date and 134% over the past year. The next earnings report on July 15** will test whether demand matches the euphoria. Until then, ASML sits at the intersection of a genuine monopoly and a valuation that demands perfection.