ASML Links 2026–2027 EUV Low-NA Output to Ongoing Customer Supply Constraints

How management links customer supply constraints to ASML’s EUV Low NA output targets (2026–2027)

The core management linkage: customer capacity needs are constrained, so ASML increases capacity supply (shipments + performance + Installed Base)

Management frames the relationship in a “demand-to-capacity” chain:

1. End-market demand (AI-driven capex ramps) implies customers need more wafers/capacity, but they face supply constraints. ASML states that semiconductor growth is driven by “investment in AI infrastructure,” leading to higher demand for advanced memory and logic, and that “the supply will not meet the demand for the foreseeable future,” creating a strong constraint in the end market. ¹
2. Customers therefore try to accelerate/ramp capacity, and they have long-term commitments that support that ramp. ASML says memory and logic customers are increasing capex to “accelerate basically their capacity ramp in 2026 and beyond,” with demand supported by “long-term commitment” at those customers. ²
3. ASML responds by working “fully aligned with customers” to deliver what they need via a combination of (a) capacity in new shipments, (b) upgrading system performance, and (c) Installed Base products—i.e., not only selling new systems but also increasing output from the installed base. Management explicitly describes this combined approach for meeting customer needs: capacity in “new shipments,” “making sure that systems…performance… is upgraded as best as we can,” and “also provide Installed Base products.” ³

This framework is the explicit mechanism that connects “customer supply constraints” to ASML’s planned EUV Low NA output targets.

How the “sold out for 2026 / lasts beyond 2026” constraint maps to the 2026 and 2027 Low NA targets

2026: “sold out” demand + tight alignment → at least 60 EUV Low NA systems output

• Management reports that customers tell ASML they are “sold out for 2026” and their “supply constraint will last beyond 2026” (specifically in memory). ¹
• In response to this customer situation (alongside broader customer capex/capacity-ramp dynamics), management states it “believe[s] we can drive an output for this year of at least 60 systems for EUV Low NA… that we’re currently driving.” ³

So, the link is not presented as a mathematical formula (“X demand deficit requires Y systems”). Instead, management portrays it as:

• customers are capacity-constrained and committed to ramps (so they will be buying/using more lithography capacity), and
• ASML is aligning delivery means (shipments + performance upgrades + Installed Base) to deliver the corresponding EUV Low NA output—“at least 60” for 2026. ³¹

2027: constraint persists beyond 2026 → throughput/capability ramp → at least 80 Low NA EUV units (if demand underpins)

• Management again ties forward output to customer demand conditions by saying the memory constraint lasts beyond 2026. ¹
• For 2027, management states it expects to increase its move rate quarter-on-quarter (implying a manufacturing/throughput ramp in capability). ³
• Then management makes the Low NA target conditional on demand “underpins” it: “we think that we can get to at least 80 Low NA EUV units” for 2027 “if customer demand really underpins that.” ³

This is the explicit “bridge” between the customer constraint timeline and ASML’s later target:

• the constraint “lasting beyond 2026” supports continued need, ¹ and
• ASML’s operational scaling (“increasing our move rate quarter-on-quarter”) is positioned to convert that ongoing need into ≥80 Low NA units in 2027—but management still conditions it on actual customer demand. ³

Why management believes the capacity shortfall will keep customers pushing (reinforcing the targets)

Management provides additional supporting context that strengthens the demand side of the linkage:

• Supply not meeting demand “for the foreseeable future” is directly stated, creating a persistent constraint that keeps customers invited to create more capacity. ¹
• For memory specifically, the “sold out for 2026” plus “last beyond 2026” statement underlines that this is not a one-year issue, matching the structure of ASML’s targets across 2026 and 2027. ¹
• For advanced logic, management describes customers building capacity for several nodes and ramping 2-nanometer for AI products, which is another demand driver for continued litho intensity and capex. ¹
• ASML also says it sees customers increasing adoption of EUV and immersion, translating into “higher litho intensity and a higher litho demand for ASML,” and that it will “continue to work very closely with our customers to increase our capacity” in both 2026 and 2027. ²

In short: management’s linkage is a narrative of (1) persistent demand/capacity constraints at customers, (2) long-term customer commitments and EUV adoption trends, and (3) ASML scaling supply and system output—leading to ≥60 Low NA EUV units output in 2026 and ≥80 Low NA EUV units output in 2027 (if demand underpins). ³²¹

Summary (direct answer)

Management links customer supply constraints to ASML’s planned EUV Low NA output targets by arguing that:

• Customers are capacity-constrained (memory customers “sold out for 2026” and constrained beyond 2026), and the overall market supply/demand imbalance is expected to persist. ¹
• This drives customer capex and capacity ramp “in 2026 and beyond,” supported by long-term commitments. ²
• ASML will deliver what customers need through a combination of new shipments capacity, system performance upgrades, and Installed Base products, and uses this to “currently” drive ≥60 EUV Low NA systems output in 2026. ³
• Because the constraints persist beyond 2026, ASML expects to ramp capability (notably increasing “move rate quarter-on-quarter”) and therefore can reach at least 80 Low NA EUV units in 2027, conditional on customer demand underpinning it. ³¹