The $15 Billion Backlog, and Who Can Cancel ItNarrow moat
Vertiv Holdings (VRT) — moat facet
Backlog doubled to $15 billion — a number that measures capacity constraint as much as demand, and that customers may reduce or defer.
Backlog is the number the market watches most closely at Vertiv, and it has behaved spectacularly: roughly $15.0 billion at the end of 2025 against $7.2 billion a year earlier1. Against fiscal 2025 net sales of $10.2 billion, that is about a year and a half of revenue already committed — an enviable position for a capital-equipment maker, and the main reason the shares carry the multiple they do.
The filing is careful about what the number is. The majority is considered firm and expected to be delivered within 12 to 18 months. But customers "have the right in some circumstances, usually with penalties or other termination consequences, to reduce or defer firm orders in backlog"2, and the company separately lists failure to realise sales expected from backlog among its principal risks3. Backlog is a strong signal of intent. It is not contracted revenue, and the difference only becomes visible in a downturn.
There is a subtler point about what a doubling means. Backlog grows when orders outrun the ability to fulfil them — the filing says exactly this4 — so a sharp rise measures capacity constraint as much as demand. Some of that $15 billion reflects customers ordering early to secure delivery slots, which is a form of demand that can be un-ordered if schedules slip.
Watch backlog conversion rather than backlog. Revenue growth materially slower than the backlog implied a year earlier would mean orders are being deferred rather than delivered.
The backlog itself has improved dramatically, roughly doubling to $15.0 billion, and against $10.2 billion of annual sales that is genuine visibility. Widening — with the honest qualification that some of the increase measures Vertiv's inability to build fast enough rather than incremental demand, and that customers retain rights to defer. A backlog is the best asset a capital-equipment maker can have and the easiest one to over-read.
About a year and a half of revenue committed, the majority firm and expected within 12 to 18 months — but customers may in some circumstances reduce or defer firm orders, and the filing attributes the rise partly to orders outrunning Vertiv's ability to fulfil them. Watch conversion: revenue materially slower than the backlog implied means deferral, not delivery.
Source: Vertiv Form 10-K, FY2025 (backlog) ↗- ReportedBacklog was approximately $15.0B at December 31, 2025 against $7.2B a year earlier.Vertiv Form 10-K, FY2025 — estimated combined order backlog of approximately $15.0 billion at December 31, 2025 against $7.2 billion at December 31, 2024, as strong demand contributed to orders being placed in advance of the ability to fulfil them; the majority is considered firm and expected to be delivered within 12 to 18 months; customers have the right in some circumstances, usually with penalties or other termination consequences, to reduce or defer firm orders in backlog; failure to realise sales expected from backlog is listed among principal risks — FY2025 · publ. February 13, 2026 · source ↗
- ReportedThe majority is firm and expected within 12 to 18 months, but customers may reduce or defer firm orders, usually with penalties.Vertiv Form 10-K, FY2025 — estimated combined order backlog of approximately $15.0 billion at December 31, 2025 against $7.2 billion at December 31, 2024, as strong demand contributed to orders being placed in advance of the ability to fulfil them; the majority is considered firm and expected to be delivered within 12 to 18 months; customers have the right in some circumstances, usually with penalties or other termination consequences, to reduce or defer firm orders in backlog; failure to realise sales expected from backlog is listed among principal risks — FY2025 · publ. February 13, 2026 · source ↗
- ReportedFailure to realise sales expected from backlog is listed among Vertiv's principal risks.Vertiv Form 10-K, FY2025 — estimated combined order backlog of approximately $15.0 billion at December 31, 2025 against $7.2 billion at December 31, 2024, as strong demand contributed to orders being placed in advance of the ability to fulfil them; the majority is considered firm and expected to be delivered within 12 to 18 months; customers have the right in some circumstances, usually with penalties or other termination consequences, to reduce or defer firm orders in backlog; failure to realise sales expected from backlog is listed among principal risks — FY2025 · publ. February 13, 2026 · source ↗
- ReportedThe filing attributes the backlog rise partly to orders being placed in advance of Vertiv's ability to fulfil them.Vertiv Form 10-K, FY2025 — estimated combined order backlog of approximately $15.0 billion at December 31, 2025 against $7.2 billion at December 31, 2024, as strong demand contributed to orders being placed in advance of the ability to fulfil them; the majority is considered firm and expected to be delivered within 12 to 18 months; customers have the right in some circumstances, usually with penalties or other termination consequences, to reduce or defer firm orders in backlog; failure to realise sales expected from backlog is listed among principal risks — FY2025 · publ. February 13, 2026 · source ↗