Adding It Up: How to Read an AI Headline, Ninety Percent of What?

On Thursday IREN announced a five-year contract with a customer prepayment "covering 90% of associated GPU capex," and on Friday its stock rose 20%. The 90% is a share of the chip bill. IREN's one filed customer contract, with Microsoft, states its prepayment as 20% of contract value; on the chip bill, it comes to 33.3%. This piece sets the two on one base, follows that base through five IREN announcements as they move from a filing to press releases, and adds a second lesson from Oracle: whether an answer fits the question it was given. (1)

The week the numbers moved

IREN closed Friday at $21.64. It had closed Wednesday at $21.71. Thursday's 17.0% fall and Friday's 20.0% rise came close to offsetting, and the week's headline was the second of the two. (2)

The swings were wider than one week. From September 30 to November 6, IREN fell 47.1%, CoreWeave 46.7%, Nebius 45.1% and Cipher 58.6%. Core Scientific fell 26.4% and TeraWulf 23.2%. Oracle fell 15.4% and NVIDIA 18.3%, against 8.5% for the Nasdaq Composite. Microsoft, a customer of several of them, rose 3.5%. In the 18 sessions from October 14, IREN moved 8% or more in a day ten times. (2)

The research desks moved the other way from Friday's tape. Cantor Fitzgerald kept its Overweight rating and cut its target to $47 from $99, writing that the quarter "beat expectations on financial metrics but missed on timing expectations." BTIG, Macquarie and HC Wainwright lowered their targets too, and Goldman Sachs stayed at Neutral. The Motley Fool's account of the rally named the prepayment as "another sign of pricing power." (3)

The figure the coverage reached for is the one with the least behind it. The rest of this piece sets out why, using only IREN's documents and its own call.

Ninety percent of what

IREN has one customer contract on file in full. On November 3, 2025, it reported under Item 1.01 that Microsoft would take GPU capacity at its Horizon data centers in Childress, Texas, over a five-year average term, with "total contract value... approximately $9.7 billion." The prepayment was stated as a share of that value: "20% of the contract value for each tranche to be paid prior to the applicable delivery date and credited against the service fees due and payable after the 24th calendar month." The same filing gave the load, about 200 megawatts, and the GPU spend, about $5.8 billion. (4)

Twenty percent of a five-year contract is about one year of fees paid before service starts. The filing also says how the money comes back: as credits against fees after the second year. (5)

The new contract is stated differently. The release says "Approximately $22 million per IT-MW on a five-year contract including customer prepayment covering 90% of associated GPU capex." The base is the chip bill. (6)

The Microsoft prepayment can be put on that base from IREN's own filings: $1,932.8 million against $5.8 billion of GPU spend is 33.3% of the chip bill. On one base, from IREN's own documents, the filed contract's prepayment is 33.3% and the furnished one's is 90%, about 2.7 to 1. That is the comparison the record supports without any help. (5)

What the 90% cannot show is how much of the customer's whole bill it represents. The release gives no contract value, no megawatts, no customer and no repayment terms. (6)

IREN's call supplies one way to translate it. Its chief financial officer walked through "a hypothetical 1-megawatt liquid cooled deployment for around $60 million of CapEx, 1/3 for the data center and 2/3 for GPUs, and customer prepayments of 0% to 90% of the GPU costs." On that hypothetical, 90% of $40 million of GPUs is $36 million, and five years at $22 million a megawatt is $110 million. Measured against contract value, the way the Microsoft filing measures it, the 90% comes to about a third of what the customer would pay, a little over 1.6 years of fees, against Microsoft's one. The conversion rests on IREN's illustration, labeled by IREN as illustrative, because the contract's own figures are not stated. (7)

The $22 million needs the same care. It is "estimated annual revenue per MW (IT)... based on internal assumptions on power consumption," a measure IREN builds, and newer, costlier chips raise it on their own. On the call, the chief financial officer put the quarter's five-year pricing at "approximately $17 million." (8)

Five announcements, five rungs

Much of IREN's record is complete. The Microsoft contract is filed and complete, Horizon 1 was delivered to and accepted by Microsoft in August, two-thirds of the backlog is with investment-grade counterparties by IREN's account, and IREN defines its measures in its footnotes, which is what makes this reading possible at all. (9)

That contract is the top of a ladder. Each of IREN's customer announcements since then has carried a little less of what a reader would need to check it. (10)

In May, IREN announced a $3.4 billion, five-year contract with NVIDIA in its quarterly release, naming the customer and the size, "within 60MW" at Childress, with no prepayment stated. In July, a release announced $2.8 billion of new contracts "with leading AI developers," beside a customer list that included "a new leading AI developer," unnamed, and prepayments of "approximately 45% of the associated GPU capital expenditure." In August, the annual results release announced "a new multi-year AI Cloud contract with a leading frontier AI lab," with no value, and prepayments of "45-55% of GPU capex." In November came the 90%, with neither customer nor size. (10)

The base moved inside the footnotes. July's footnote measured prepayments against "the estimated capital expenditure attributable to the associated deployments." August's measured them against "estimated capital expenditure for GPUs and ancillaries." November's measures against "associated estimated GPU capex." That is three wordings in under four months, each defined, and each different from the one filed contract's. (10)

The document moved too. The Microsoft contract is in a current report under Item 1.01, a filed document. The four announcements after it are in releases furnished as exhibits to results reports, which sit outside the liability that attaches to filed statements. IREN furnished the transcript of its May call as an exhibit; no transcript of the August or November call is on EDGAR. The 10-Q filed the same day as the November release does not mention the new contract, which was signed after the quarter. (11)

A current report naming the customer and the value would settle every question here. IREN filed one for Microsoft. As of Saturday morning, none has been filed for this contract. (11)

What the call adds

The call fills in the surroundings of the 90% and leaves the contract itself as it was.

The chief executive placed the signing in the week of the call: "We just had a customer agree to fund 90% of the GPU CapEx." He listed it separately from "one of the leading frontier AI labs" expanding its capacity. The chief financial officer described recent prepayments as "up to 90%." (12)

He also set out a funding target: "Across the portfolio, we are targeting total financing for GPU CapEx, including prepayments, of 90% of associated GPU CapEx," against "circa 95% and greater than 100%" on the earlier investment-grade and non-investment-grade financings. IREN's own releases count the two kinds of money together. In August, the Microsoft program's loan "together with prepayments, funds 96% of associated GPU capex," and the Mackenzie loan "together with customer prepayments, provides funding in excess of GPU capex." The lender's money and the customer's money are stated as shares of one bill and added. The 10-Q books them differently: prepayments with a significant financing component now carry interest in finance expense. (13)

On the new contract, the customer's prepayment alone equals the portfolio target. The release says nothing about a loan beneath it.

Asked by Cantor Fitzgerald whether IREN favored investment-grade customers or those "prepaying for the entirety of the CapEx in some cases," the chief executive answered that two-thirds of the backlog is investment grade, "Microsoft, NVIDIA," and that "there is a portion that is a lower credit, but they tend to go hand in hand with higher prepayments." That is a general statement about the book, made on the call, and the customer behind the 90% is not named. (14)

Two analyst questions went unanswered in the recorded replies. Goldman Sachs asked whether customers could "exit any leases or get any of their kind of GPU deposits back" after a long delay; the reply on that point addressed community relations and siting. Macquarie asked about "the tenant responsibility to cover any change orders" on Microsoft's network redesign; the answer was that the added spend is "entirely immaterial." (15)

Does the answer fit the question

Oracle supplied the week's second lesson, of a different kind.

On September 10, Oracle's co-chief executive Clay Magouyrk told analysts: "Of all the GPUs that came up for renewal in Q1, that capacity was renewed or resold at a 20% premium to prior contracts." He added that "the majority of those GPUs are 4 years or older." (16)

On Friday, Bloomberg reported that Microsoft is "winding down an arrangement to rent AI computing from Oracle," and had been "turning off rented computing capacity from Oracle in recent months after declining to renew the contract," because it "no longer met Microsoft's evolving needs" on older Nvidia chips. Bloomberg could not determine the arrangement's size. (17)

Oracle answered the same day: "Demand for OCI's AI infrastructure remains strong, including for earlier-generation GPUs. As Clay shared on our latest earnings call, GPU capacity that came up for renewal in Q1 was renewed or resold at a 20% premium to prior pricing for long-term contracts." The phrase "for long-term contracts" does not appear in the September remark. (18)

The report concerned one tenant and one contract. The answer concerned the price of capacity across a quarter, with renewals and resales counted together. Both can be true at once, and the answer leaves the question where it was: whether Microsoft's capacity was in that renewal set, who took any capacity Microsoft released, at what credit, and what it does to Oracle's backlog. None of that is on the record, and this piece makes no estimate of it. (19)

The two cases rhyme from opposite ends. IREN's figure keeps the word and changes the base. Oracle's answer keeps the price and leaves out the tenant. In each, the number on offer can be accurate, and the thing a reader needs to judge it sits somewhere else.

Two questions for any AI headline

The September piece asked what each announced figure measured. These two follow from it.

First, what is it a percentage of? A prepayment, a margin or a growth rate means what its base means, and the base can change from one release to the next while the word stays the same. The filed contract is the place to find a base that holds still.

Second, does the answer fit the question? A statement about a portfolio, offered in reply to a report about one contract, can be accurate and still be about something else.

The filings that settle this week's figures are scheduled. IREN's December-quarter 10-Q, due in February, carries the backlog that will include the new contract, and the deferred revenue that will show its prepayment. Oracle's November-quarter 10-Q, due in December, carries its remaining performance obligations and prepayments. Microsoft's December-quarter 10-Q, due in late January, carries the $364.6 billion of leases it had signed and not yet started at September 30. (20)

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Analysis: Cape Fear Advisors.