ASML, the semiconductor manufacturing equipment specialist, has cemented its position as Europe’s most valuable company, boasting a market capitalisation of around €600bn (£510bn).
That figure dwarfs every company listed in the UK’s FTSE 100 index, placing the Dutch firm in a league of its own on the continent.
Over the past year, ASML’s share price on its US listing has surged from $735 to $1,785, representing a gain of around 143%.
With the GBP/USD exchange rate remaining largely unchanged over the same period, a £5,000 investment made 12 months ago would now be worth approximately £12,100.
By comparison, the strongest-performing individual stock in the FTSE 100 over the past year returned around 100%, making ASML’s performance particularly striking.
This serves as a compelling reminder that looking beyond domestic markets and incorporating international stocks into ISAs or Self-Invested Personal Pensions (SIPPs) can meaningfully boost returns.
ASML holds a near monopoly in highly sophisticated chip manufacturing equipment, which is essential for the production of advanced AI chips used across the global technology industry.
As major chip manufacturers including Taiwan Semi and Intel continue expanding their capacity, demand for ASML’s equipment is expected to grow alongside the broader semiconductor industry.
The company’s second-quarter results, posted on 15 July, underscored the strength of that demand, with sales reaching €9.3bn compared to €7.7bn in the same period a year earlier.
ASML sold 91 lithography systems during the quarter, up from 76 in the prior-year period, and guided for third-quarter sales of between €11bn and €12bn, against €7.5bn in Q3 2025.
The company noted in its Q2 results that “ongoing AI-related investments and continued progress in AI technologies are driving demand for advanced Logic and Memory chips, further strengthening the semiconductor industry’s growth outlook,” adding that “our customers, in turn, continue to accelerate their capacity expansion plans.”
Despite the impressive trajectory, the stock is not without risk, and a cautious approach to building a position may be prudent given its elevated valuation.
The forward price-to-earnings ratio currently sits at around 50, falling to approximately 37 on next year’s earnings forecast, which remains high and leaves little room for any slowdown in growth.
One approach worth considering is taking a small initial position and adding to it gradually, particularly if market volatility creates more attractive entry points in the months ahead.
In the long run, the structural tailwinds behind AI chip production and the global digitalisation trend continue to support a positive outlook for ASML’s business.