TSMC: NT$1.494T Is Not Yet a Reported US-Dollar Quarter

A quarter can be assembled before every quarterly result is released. The useful research step is to label what is reported, what you calculated, and what remains unknown. TSMC is a timely example: its September revenue announcement is dated October 8, while its third-quarter earnings conference is scheduled for October 15. These are two different information stages.

Original SignalSage currency-check graphic in pale sand, teal and burnt orange. Three month cards show TSMC July, August and September 2026 revenue of NT$467,580M, NT$514,806M and NT$511,857M. A calculated total is NT$1,494,243M. An orange exchange gate labels division by32 an illustrative assumption, not reported US-dollar quarterly revenue. Monthly data unaudited; October15 earnings conference scheduled. No actual margins, EPS, return forecast or app test.

Three reported months, one calculated sum

TSMC lists July, August and September 2026 consolidated revenue as NT$467,580 million, NT$514,806 million and NT$511,857 million. Adding the three reported monthly amounts gives NT$1,494,243 million, or NT$1.494243 trillion, for July through September. This sum is our arithmetic from company disclosures, not a separately quoted US-dollar quarterly result. TSMC labels the 2026 monthly figures unaudited.

The tempting currency shortcut

The July 16 earnings release guided third-quarter revenue to US$44.6–45.8 billion. It also used an assumption of US$1 = NT$32 for its margin outlook. Dividing the monthly sum by 32 gives roughly US$46.695 billion. That is an illustrative conversion at a stated assumption, not evidence of the quarter’s actual exchange rate or TSMC’s reported US-dollar revenue. A precise-looking calculator output can still answer a different question from the filing.

Why the distinction matters

Monthly New Taiwan dollar sales help establish the size of the revenue base. A US-dollar comparison requires a comparable currency basis. Mixing a monthly aggregation with an assumed conversion and presenting the result as the company’s reported dollar quarter removes two important labels: calculation and assumption. Keep both beside the number, rather than burying them in a footer.

Revenue does not complete the earnings story

The July guidance also included gross margin of 65–67% and operating margin of 56–58%. Those were management forecasts, not third-quarter actuals. The monthly revenue table does not establish quarterly gross profit, net income, diluted EPS, or a stock-return outcome. As of this October 10 research note, the October 15 earnings conference is still a scheduled future event.

A practical three-column research log

Use three columns: reported monthly sales; calculations and their assumptions; remaining quarterly evidence. Put the three monthly numbers in the first column, their NT-dollar sum and any hypothetical conversion in the second, and reported dollar revenue, actual margins and EPS in the third. This keeps a revenue update useful without letting it become an unsupported earnings conclusion.

Research conclusion

The monthly sum is a legitimate input, but its label determines how it can be used. Compare like currencies and periods, then update the unanswered rows when the quarterly release arrives. This is an evidence checklist, not a claim that guidance has been beaten on a reported US-dollar basis, an investment recommendation, or an app benchmark.

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Explore SignalSage for US Stock Research / AI Stock Analysis alongside original company disclosures. English UI; some features require in-app purchases or subscriptions. iPhone and Android download links are available below. Original animated explainer and graphic; AI-assisted writing and synthetic narration; original locally synthesized music. Historical company disclosures and a future scheduled event, not a promise of returns.

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