Product 03 · Weekly, on Substack

One company. One call. One mechanism.

> MODULE ......... THE LETTER · weekly · Tuesday 07:00 Lisbon
> SOURCE ......... accepted, quote-verified, adjudicated rows only ..... [OK]
> CHECK .......... every figure → marker → source · exit 1 on FAIL ..... [OK]
> SUBSCRIBE ...... qntum.substack.com · qntum@substack.com ............ [OPEN]

Every Tuesday: what management said this quarter that changes a bottom-up model, set against what the same management said in earlier quarters, and against what the rest of the supply chain said within one reporting cycle. Every figure links to the paragraph it came from.

It is not a results recap — revenue and EPS are in every wire story within the hour. The letter is about the other 98% of the transcript: the figure a CFO gives once and never files, the ratio a CEO lets slip in the Q&A, the take-or-pay structure described in a subordinate clause.

Issue 1 NVDA FY2027 Q2 call 2026-08-26
$40 billion a gigawatt, and a floor under it: what NVIDIA put on the record in Q2
33 verified rows · 126 backward links · 142 corroborations read ↗
Structure

The same shape every week. Checked by machine.

SectionWhat it carriesTier
What was said beforeThe same company's own record on the same quantities over the previous four calls — in management's words, datedFree
What changedFour to eight verified datapoints from this call, in the order a model uses themFree
Who else is saying itOther issuers' management on their own calls within one cycle — independent voices only, press restatements excludedFree
Context: the reported quarterOne table, cited to the filingFree
What it does to a bottom-up modelOur arithmetic on management's figures, every step showing its inputs, labelled as oursPaid
Datapoint table & sourcesEvery row cited, with speaker, date, quote and verification linkPaid
Rules the writer works to

What the letter never does.

> CHECKER ........ markers · figures · quotes · speakers · language · structure · arithmetic
> pass rate ...... a draft that fails does not reach the editor ........ [ENFORCED]
Subscribe

Free narrative. Paid arithmetic.

The free tier is the mechanism explained — the before-record, what changed, who else said it, the reported quarter. The paid tier adds what it does to a model, the full datapoint table, the sources appendix, and verification links that open on the source paragraph.

On Substack

qntum.substack.com

Tuesdays, 07:00 Lisbon. Monthly or annual. Cross-posted free to LinkedIn the same morning.

By email

qntum@substack.com

Replies, corrections, a ticker you would like covered, a source you think we missed. Read by the author.

Teams and institutions: Inflection Watch (coming soon) will carry named-reader licences; the letter is for one reader.

This letter is research, not advice. It records what company management said, on what date, with the figures they gave, and what the reported numbers subsequently did. It is not a recommendation to buy, sell or hold any security, and no position in any company named is held by the author or by QNTUM AI. Every figure attributed to a company is a verbatim quotation from, or a checked paraphrase of, a public earnings call or filing; every one carries a link to the passage it came from. Where we do arithmetic on management's numbers we show the arithmetic and label it as ours. QNTUM AI, Unipessoal Lda. is not authorised or regulated by the CMVM or any other financial-services regulator.