TSM: Taiwan Semiconductor Manufacturing Company Ltd.
Holding · 12.0% · trim (from 20.1%) · mega · Technology · last 422.25
Entry 412.00–430.00 · Stop 390.00 · Target 495.00 · Sell ≈ 10 shares (≈ $4,222 at 422.25)
The long thesis holds (revenue +50.9% YoY, gross margin 66.4%, Q4 guidance strong), but 20% breaks the 12% position cap. The stop stays at $390, just under the 200-day average.
Thesis (long, position, conviction 66)
Bull: TSMC just posted another blowout quarter: Q3 2026 revenue of NT$1,494.24bn (+50.9% YoY, +17.6% QoQ) and net income of NT$763.06bn (+68.7% YoY), with gross margin of 66.4% and operating margin of 58.7% (F-TSM-4, F-TSM-5, F-TSM-6) — margin expansion alongside hyper-growth is rare and signals pricing power in advanced nodes. Advanced technology (7nm and below) now drives 79% of wafer revenue (F-TSM-7), underscoring TSMC's structural lead in AI/HPC-driven leading-edge demand. Q4 guidance of $52.3-54.3bn revenue with 65-67% gross margin (F-TSM-8) implies the growth and margin story continues, and September monthly revenue was still up 54.6% YoY despite a seasonal month-over-month dip (F-TSM-9). Meanwhile the stock has sold off 13.1% in just ten trading days (F-TSM-1), pulling the price below its 20-day and 50-day moving averages but still comfortably above the 200-day MA of $392.83 (F-TSM-2) — this looks like a sentiment/momentum flush rather than a fundamental deterioration, especially with RSI at 37.8 (cooling, not broken) and 12-month return still +44.2% (F-TSM-3). This combination of a world-class moat, accelerating AI-driven demand, and a price dislocation from strong results is a classic buy-the-dip setup in a quality mega-cap compounder.
Bear: The sharp 13.1% drawdown in ten days (F-TSM-1) coincides with the earnings release, which could indicate the market is pricing in deceleration risk, currency effects (NT$ reporting vs USD guidance), capex intensity, or geopolitical/tariff overhang not captured in the brief's facts. The stock remains below its 20-day and 50-day moving averages (F-TSM-2), meaning near-term trend is bearish even if the long-term trend (200-day MA) is intact — a break below the 200-day MA at $392.83 would flip the technical picture decisively negative. Data gaps are notable: SEC annual fundamentals are unavailable and the fundamentals block is flagged as a fallback source, so valuation can't be fully cross-checked against standardized filings, and the brief has no explicit forward P/E, FCF yield, or capex figures to judge whether the ~13% pullback has made the stock cheap or merely less expensive. The position is already a large 20% portfolio weight, so concentration risk amplifies any further drawdown.
Valuation: The brief lacks a standardized P/E, FCF yield, or balance-sheet detail (SEC annual data was unavailable and the fundamentals block is a fallback), so a precise valuation multiple cannot be computed here. What is clear qualitatively: revenue growth of 50.9% YoY and net income growth of 68.7% YoY (F-TSM-4, F-TSM-5) alongside 66.4% gross margin (F-TSM-6) represent best-in-class profitable growth for a mega-cap semiconductor name, and Q4 guidance (F-TSM-8) suggests this is not decelerating sharply. A 13.1% price decline against unchanged-to-improving fundamentals mechanically lowers whatever multiple the market was previously paying, making the stock more attractively priced today than ten trading days ago, even without a precise fair-value anchor.
Catalysts
2027-01-13: Q4 2026 earnings report where TSMC should report against its $52.3-54.3bn revenue and 65-67% gross margin guidance
undated: Next monthly revenue release (~early November) to confirm Q4 trajectory is tracking guidance
Facts
F-TSM-1: TSM closed at $422.25 on 2026-10-15, down 13.1% from its 2026-10-05 close of $485.80. (as of 2026-10-15)[E6261]
F-TSM-2: On 2026-10-15, the close of $422.25 was below the 20-day moving average of $453.57 and the 50-day moving average of $433.84, but above the 200-day moving average of $392.83. (as of 2026-10-15)[E6261]
F-TSM-3: TSM's 12-month share-price return through 2026-10-15 was 44.2%; its three-month return was 6.3%, with three-month relative strength versus SPY of 2.2%. (as of 2026-10-15)[E6261]
F-TSM-4: For the quarter ended 2026-09-30, TSMC reported revenue of NT$1,494.24 billion, up 50.9% year over year and 17.6% quarter over quarter. (as of 2026-10-15)[E6340]source
F-TSM-5: For the quarter ended 2026-09-30, TSMC reported net income of NT$763.06 billion, up 68.7% year over year and 8.0% quarter over quarter. (as of 2026-10-15)[E6340]source
F-TSM-6: For the quarter ended 2026-09-30, TSMC reported gross margin of 66.4%, operating margin of 58.7%, and net profit margin of 51.1%. (as of 2026-10-15)[E6340]source
F-TSM-7: In 2026 Q3, advanced technologies—defined by TSMC as 7-nanometer and more advanced processes—accounted for 79% of total wafer revenue. (as of 2026-10-15)[E6340]source
F-TSM-8: For 2026 Q4, TSMC's management forecast revenue of US$52.3 billion to US$54.3 billion, gross margin of 65% to 67%, and operating margin of 56.5% to 58.5%. (as of 2026-10-15)[E6340]source
F-TSM-9: TSMC reported September 2026 consolidated revenue of NT$511.86 billion, down 0.6% from August and up 54.6% from September 2025. (as of 2026-10-08)[E6322]source
F-TSM-10: TSMC reported January–September 2026 consolidated revenue of NT$3,898.73 billion, up 41.1% from the same period in 2025. (as of 2026-10-08)[E6322]source
F-TSM-11: The supplied holdings data records a position of 24 TSM shares as of 2026-10-15. (as of 2026-10-15)[E6292]
What would change the view
A close below $390 (through the 200-day MA)
Q4 2026 reported revenue coming in below $52.3bn or gross margin below 65%
Advanced-technology (7nm and below) wafer revenue share declining materially from the 79% reported in Q3
Evidence of a demand-side AI capex slowdown from major customers (not currently in the brief) emerging in subsequent data
Data quality
Quality score 96/100.
Gap: SEC annual fundamentals returned no annual data; the supplied fundamentals block is a fallback source and warns that recent SEC quarterly companyfacts data is unavailable.
Gap: The quote block is dated 2026-10-16, later than the stated analysis date of 2026-10-15, and conflicts with the 2026-10-15 bar close. The quote price was therefore not used.