ASML Q3 2026: Service Sales Grew, but Their Revenue Share Fell
Official release: 2026-10-14 · Research cutoff: 14 October 2026, 23:20 UTC · Q3 2026 ended September 27, 2026; comparison Q2 2026
ASML’s service and upgrade business expanded in Q3 2026, yet represented a smaller slice of revenue. There is no contradiction: the rest of the business grew faster. Installed Base Management sales rose about 19.1% from Q2, while total sales increased 25.0%. Its revenue share consequently fell from 29.6% to 28.2%, a decline of 1.4 percentage points.
A larger business can become a smaller share
ASML calls this category Installed Base Management, or IBM. It includes net service and field-option sales. Calling the whole category a recurring maintenance subscription would misdescribe it: upgrade activity also matters. The comparison below keeps the original euro amounts and uses the same revenue definition in both quarters.
Q2 2026: systems €6.564bn + IBM €2.762bn = €9.326bn
Q3 2026: systems €8.373bn + IBM €3.289bn = €11.662bn
On a narrow screen, scroll the table sideways. Keyboard users can focus the table region and use the arrow keys.
| Measure | Q2 2026 | Q3 2026 | Calculated QoQ change |
|---|---|---|---|
| Total net sales, €m | 9,326 | 11,662 | 25.0% |
| IBM sales, €m | 2,762 | 3,289 | 19.1% |
| System-sales residual, €m | 6,564 | 8,373 | 27.6% |
| IBM share of total sales | 29.6% | 28.2% | −1.4 percentage points |
The denominator explains the apparent reversal
Growth asks how much a category increased relative to its own earlier size. Mix asks how large that category is relative to the whole business. A positive answer to the first question does not guarantee an increasing answer to the second.
Here, subtracting IBM from total sales gives a system-sales residual of €8.373bn, compared with €6.564bn in Q2. That residual grew 27.6%, faster than IBM. The change in mix therefore follows directly from the two growth rates; it does not require a story about weakening service demand.
Open the calculation: growth versus share
IBM growth = (3,289 ÷ 2,762 − 1) × 100 = 19.0804%. Q3 IBM share = 3,289 ÷ 11,662 × 100 = 28.2027%. Q2 share = 2,762 ÷ 9,326 × 100 = 29.6161%. Subtracting the shares gives −1.4134 percentage points. Calculations retain precision until display rounding.
This distinction is useful when evaluating any company with several revenue streams. Start with absolute amounts, then calculate growth, and only then inspect shares. Looking only at a pie chart can make an expanding category look weaker simply because another category expanded more quickly.
Mix is not a margin attribution model
ASML reported gross margin of 57.5%, up from 54.0%. Management linked above-guidance IBM sales and margin to demand for productivity upgrades. That explanation is useful context, but the revenue table alone cannot measure the margin contribution of each product or service.
A smaller service share alongside a higher company margin is therefore not enough to conclude that systems became more profitable, that upgrades became less important, or that either category has a particular standalone margin. Those claims need product-level profitability evidence beyond the figures shown here.
Why not calculate an average system price?
Dividing residual revenue by a system count would combine equipment with different technologies and commercial characteristics. New and used machines also differ. A changing mix can move that quotient even without any like-for-like price change. Treat it as an aggregate ratio, not a verified machine price.
Keep the capacity outlook separate
Management also expected its currently planned supply in 2027 and 2028 to fall short of customer demand. The capacity footnote concerns low-NA EUV and DUV immersion equipment. This is a forward-looking assessment, not a measured future shortage or proof that customer interest has become firm orders.
Reader takeaway: the clearest finding is the arithmetic: IBM grew, systems grew faster, and IBM’s share fell. A disciplined reading preserves all three statements without turning a mix change into an unsupported judgment about business quality.
Source and scope
Figures are unaudited, consolidated US GAAP amounts. Q3 ended 27 September 2026. This analysis compares sequential quarters, not year-on-year performance, and does not adjust for seasonality. Charts are original; no issuer artwork is reproduced. Financial-statement education, not a trading recommendation.
- ASML Q3 2026 official earnings release, 14 October 2026, pages 1–2: financial table, management commentary and definitions
