TSMC Form 6-K Summary: September 2025
Business Context and Reporting Period
Taiwan Semiconductor Manufacturing Company Limited (TSMC) filed this Form 6-K on October 9, 2025, reporting financial results for the month of September 2025 and the year-to-date period ending September 30, 2025. The filing covers consolidated revenue, funds lent to subsidiaries, endorsements, and financial derivative transactions.
Key Financial Metrics
- September 2025 Net Revenue: NT$330.98 billion.
- Year-to-Date (Jan–Sep 2025) Net Revenue: NT$2,762.96 billion.
- Liquidity and Debt: The filing does not provide specific values for total cash flow, profit margins, total debt, or liquidity ratios.
- Derivatives: Outstanding notional amounts for forward margin payments totaled approximately NT$225.5 billion across TSMC and its subsidiaries, with a cumulative unrealized loss of approximately NT$908 million.
Material Changes vs. Prior Period
- Month-over-Month: September 2025 revenue decreased 1.4% compared to August 2025 (NT$335.77 billion).
- Year-over-Year (Monthly): September 2025 revenue increased 31.4% compared to September 2024 (NT$251.87 billion).
- Year-over-Year (YTD): Revenue for the first nine months of 2025 increased 36.4% compared to the same period in 2024 (NT$2,025.85 billion).
Outlook, Risks, and Contingencies
The filing contains no forward-looking guidance, management commentary on future outlook, or specific risk factors beyond the disclosure of financial derivative positions. The document notes outstanding guarantees provided to wholly-owned subsidiaries (TSMC North America, TSMC Global, and TSMC Arizona) totaling approximately NT$2.19 billion in approved amounts, with NT$2.54 billion outstanding for TSMC North America.
Investor Verification Checklist
- Verify the 1.4% month-over-month revenue decline against seasonal trends or specific customer demand shifts.
- Confirm the 31.4% year-over-year growth rate aligns with broader semiconductor industry demand forecasts.
- Review the cumulative unrealized losses on financial derivatives (approx. NT$908 million) for potential impact on future earnings.
- Check the status of guarantees for TSMC North America, TSMC Global, and TSMC Arizona for any changes in exposure.