Singapore's DayOne asks public investors for ~54x EBITDA — twice Digital Realty — on 69% revenue from one hyperscaler

DayOne Data Centers Limited filed a Form F-1 with the U.S. Securities and Exchange Commission on October 5, 2026, applying to list American Depositary Shares on the Nasdaq Global Select Market under the ticker \"DODC\" (SEC file number 333-299299). The Singapore-headquartered developer, led by CEO Jamie Khoo, is targeting a raise of as much as ~$5 billion at a ~$20 billion pre-money valuation, according to people familiar with the matter cited by Reuters and Bloomberg. Morgan Stanley, J.P. Morgan, BofA Securities and Citigroup are leading the deal, with BNP Paribas in a senior role.

DayOne's H1 2026 numbers are striking on the surface: revenue of $512.0 million versus $151.5 million a year earlier, a 3.4x jump. Adjusted EBITDA hit $205.9 million on a 40.2% margin, up from 32.3% in H1 2025. Full-year 2025 revenue reached $484.3 million versus $178.1 million in 2024. Bookings climbed from 537 MW at the end of March 2025 to 1,786 MW at June 30, 2026, while capacity in service nearly quadrupled to 675 MW from 153 MW over the same period. Utilization is already at 98.7%, with98.8% pre-committed — a profile closer to a contracted utility than a real estate developer.

Underneath those numbers, the F-1 reveals a single-customer dependency that the prospectus itself discloses: the largest customer accounted for 69.4% of 2025 revenue and 69.2% of H1 2026 revenue; the second-largest represented 12.3% and 15.1%. Combined, the top two customers deliver roughly 82% to 84% of revenue. That concentration, paired with $4.35 billion of long-term debt against negative total equity of −$25.1 million at June 30, 2026, is the structural risk the multiple expansion has to outrun.

At a ~$20 billion equity valuation, DayOne's implied enterprise value is roughly $22.4 billion after subtracting $1.98 billion of cash from $4.35 billion of long-term borrowings. Against H1 2026 adjusted EBITDA of $205.9 million — annualized to ~$411.8 million — that is roughly 54x EV/EBITDA. On the more conservative FY2025 EBITDA base of $180.7 million, the multiple stretches to ~124x. Either number sits far above the listed peer set.

The premium is roughly 2x Digital Realty and Equinix, and 4x GDS Holdings — DayOne's closest Asian peer and former parent, which still holds a residual stake after selling $385 million of DayOne shares back to the company in January 2026. The premium implies that public investors will price DayOne as AI infrastructure, not as a traditional colo REIT — a categorization that hinges on whether the 69% one-customer relationship is treated as contracted infrastructure or as a single-tenant credit exposure.

DayOne's growth story depends on a stack of counterparties that investors rarely see in a headline. The F-1 explicitly names \"utilities, property owners, module integrators, equipment suppliers, contractors and logistics providers\" as project-execution dependencies, with cross-region shipping risks (cargo space, customs, inspections, duties) and limited third-party module integrators as disclosed supply-chain bottlenecks. Cooling depends on third-party utilities and government approvals — a non-trivial risk given Trump's export-control posture toward Southeast Asian cloud routes.

The single-tenant risk cuts in two directions. If the undisclosed anchor customer is one of the big three U.S. hyperscalers — and the F-1 reports 10 customers in Johor with ~1.4 GW of bookings and 2.3 GW total bookings globally as of September 20 — then the customer is AAA-rated and DayOne looks like contracted utility cash flow. If the anchor is a single AI-native tenant like OpenAI or an equivalent, the picture resembles SoftBank-backed SB Energy, whose planned $60 billion IPO was shelved in part over concerns about single-customer exposure.

Three forces are colliding around the filing window. The Trump administration imposed a 12.5% tariff on Singapore-origin exports in August 2026, affecting roughly S$9.5 billion ($7.4 billion) of Singapore's exports to the U.S. — a backdrop hostile to Singapore-domiciled issuers even when services are not tariffed directly. At the same time, the administration is preparing new AI diffusion export controls aimed at blocking Chinese access to remote AI servers routed through third countries, with the Bureau of Industry and Security confirming on June 1, 2026 that export controls cover Nvidia Blackwell and Rubin chips. DayOne's Batam, Malaysia, and Johor footprint sits squarely inside that policy crossfire.

On the demand side, AI-related capital spending by the six biggest U.S. tech companies is projected by Moody's to reach roughly $1 trillion in 2027, more than double the 2024 base — a tailwind large enough to absorb multiple new public colo issuers. DayOne is not alone in the queue: Reuters reports that Switch, Vantage Data Centers, CyrusOne, and Nvidia-backed Reflection AI are all lined up to test public markets, and SB Energy's $60 billion IPO was delayed specifically over single-customer concerns. DayOne will set the precedent for every Asian filing that follows it.

Short-term (days to quarters), the price-discovery event is the F-1 amendment and the roadshow expected mid-October, with pricing targeted for November 2026 per Reuters. The single binary catalyst is the largest-customer disclosure that will arrive in the next F-1 amendment; if the anchor is named and rated, the 69% concentration turns from headline risk into contracted-revenue proof, and DayOne clears the bar at a richer multiple than peers. If the anchor remains unnamed or is identified as a single AI-native tenant rather than an investment-grade hyperscaler, the IPO prices at a discount to the $20 billion ask or pulls altogether — mirroring the SB Energy delay.

Long-term (one to three years), the structural driver is whether AI capex sustains the implied $1 trillion 2027 run-rate. If it does, DayOne's 2.3 GW backlog converts to ~$2.5 billion to $4.0 billion of annualized revenue at industry-standard $1.10 to $1.75 per MW-month pricing, supporting the implied multiple. The main risks to the thesis are: (1) a single-customer renegotiation if the anchor hyperscaler signs direct-lease alternatives with Equinix or Digital Realty; (2) the Singapore tariff expanding into services; (4) NVIDIA channel shifting toward its own AI factory builds (Firmus, SB Energy) rather than via DayOne; and (4) book conversion slowing once the 1,125 MW under-construction pipeline attempts to ramp through 2027.