TSMC profits explode but chip stocks are plunging — buy the semiconductor dip

Verdict: pass — fundamentals dazzle, but the rules lose money

The idea argues that TSMC's 31.6% revenue growth and 50.8% operating margin make the ongoing chip selloff an irrational discount, and the fundamentals genuinely support that claim — free cash flow of NT$992.4 billion lands in the 99.9th percentile of its sector. But a thesis is only as good as its execution, and over a 24-month backtest this strategy lost 2.7% across 9 trades with a 44.4% win rate; over 60 months it never triggered at all. No robust parameter setup was established — four walk-forward variants were tested and none produced enough profitable folds to advance. Right now the entry is also not live: TSM's 3-day rate of change sits at negative 2.8% and its RSI at 27.2 has slipped below the strategy's 30-to-45 band, meaning the system is correctly waiting for stabilization rather than catching a falling knife. Per the WSJ and Yahoo Finance coverage, the $3.3 trillion chip sell-off is nearing bear-market territory, and until momentum turns, an 8% stop is easily reached in this regime. **Conviction breakdown:** Thesis support is strong — TSMC's fundamentals are elite and the narrative of panic selling against strength is well-documented. Trade readiness is low because multiple entry conditions are unmet and TSM's RSI has breached its lower bound. Risk quality is moderate: the 8% stop is tight given current volatility, and the basket's near-zero correlations could re-correlate in a sector crisis. Backtest evidence is weak — negative returns, sub-50% win rate, and no viable parameter variant. Fundamentals trend is excellent, with margins, cash flow, and returns all at or near peak levels.

Trade now

TSM closed the latest session at $398.37, sitting 14.8% below its recent range high and deeply oversold with an RSI of 27.2. The idea argues that TSMC's 77% profit jump proves AI demand is intact, making this sector-wide panic a buying opportunity. However, the strategy does not buy simply because price is falling — it waits for stabilization. Price needs to be at or below the 20-period Bollinger Band (currently $428.68), and it is, by roughly $30. But the entry also requires a 3-day rate of change above zero, and TSM currently sits at negative 2.8% on that metric. The semiconductor ETF (SMH) must also show a same-day or positive rate of change, and SMH currently sits at zero. Neither momentum condition is met. "Wait" means monitoring for a green close or flat session on TSM that flips the 3-day rate of change positive, alongside stability or a bounce in SMH. The nearest support level for TSM sits at $390.10, and the strategy requires price to remain at or above the first support rank. An 8% stop from the current close would sit near $366, while the 127.2% Fibonacci extension take-profit and the 78.6% Fibonacci retracement stop would be calculated dynamically once entry triggers. The fixed-risk position sizing caps exposure at 2.5% of equity with a maximum position of 25% of the portfolio. The backtested evidence tempers expectations. Over a 24-month evaluation window, the strategy produced 9 trades with a 44.4% win rate, a negative 2.7% return, and a maximum drawdown of 2.8%. A broader 60-month backtest produced zero triggers, meaning the conditions have been rare. No robust parameter setup was established — the bounded walk-forward grid tested four RSI and threshold variants, and none achieved enough profitable folds to advance to the untouched holdout. This is a rules-based setup waiting for its entry conditions, not a high-conviction momentum trade.

The fundamental engine behind the dip-buying thesis

The idea's core argument is that indiscriminate sector panic is creating a discount on a company with extraordinary fundamentals, and the financial data firmly supports that claim about underlying business quality. TSM closed its latest fiscal year with revenue of NT$3.81 trillion, representing a 31.6% year-over-year growth rate—a figure that places the company in the 64th percentile of its Information Technology peers. More importantly, this growth is translating into…

Scores

• Conviction score breakdown: 50
• Thesis support: 78
• Trade readiness: 25
• Risk quality: 40
• Backtest evidence: 20
• Fundamentals trend: 88

Watch items

• TSM — ROC (3)
• SMH — ROC (1)
• TSM — RSI (14)
• TSM — Price vs nearest support ($390.10)
• SMH — RSI (14)
• ASML — RSI (14)
• ASML — RSI (14)
• ASML — Price
• ASML — ROC (3) above 0
• ASML — ROC (1)
• ASML — Price above Bollinger (20)
• SMH — RSI (14)