TSMC shatters records but chip stocks are plunging anyway — bargain hunting on Micron and TSMC

Verdict: high-reward dip buy, but size for the losing streaks

The fundamental case for buying this dip is real: TSMC grew revenue 31.6% year over year with a 59.9% gross margin and Micron surged 48.9% with operating margin in the 94th percentile among IT peers, yet both stocks are flashing oversold readings (MU RSI at 29.2, TSM at 27.2) with all entry conditions currently met. The 60-month backtest returned 129.3% across 94 trades and the frozen-rule holdout returned 44.9% with a 77.8% win rate, which is exactly what you want to see from a contrarian setup that was never curve-fit. The bear case is equally concrete: the full backtest win rate is just 42.6%, walk-forward fold 1 lost 17.1% with a 25.9% drawdown, and per the Yahoo Finance piece on Marvell's 8% drop, the semiconductor complex is repricing on a credible AI capex deceleration fear rather than random panic — meaning this dip could deepen into a genuine fundamental decline if hyperscalers actually cut spending. MU's own history confirms the risk, with gross margin swinging from 58.8% in 2018 to negative 4.0% in early 2023 before recovering, proving that strong memory fundamentals today do not guarantee strength tomorrow. No robust parameter setup was established; four RSI variants failed to improve on the baseline in the holdout. The trade is actionable right now and the risk controls are tight, but the edge is highly regime-dependent and you must be prepared for extended losing streaks. **Conviction breakdown:** - **Thesis support (75):** Strong fundamentals on both tickers directly support the bargain-hunting narrative, but the macro fear driving the selloff is credible rather than irrational. - **Trade readiness (85):** All entry conditions are met on both MU and TSM, with clear exit rules and tight 2.5% stops. - **Risk quality (60):** The 2.5% stop loss is disciplined but the historical max drawdown of 13.1% implies consecutive losing entries piling up, and expected portfolio drawdown of 74.7% in a correlated scenario is severe. - **Backtest evidence (65):** The 129.3% cumulative return and 44.9% holdout return are compelling, but the 42.6% win rate and the destructive walk-forward fold 1 (−17.1%) reveal fragile, regime-dependent edge. - **Fundamentals trend (85):** Both companies show accelerating revenue, expanding margins, and inflecting free cash flow, though Micron's deep cyclical history warrants caution.

Trade now

All entry conditions for the mean-reversion long are live as of the latest daily close. Micron (MU) closed at $848.95 with an RSI (14) of 29.2 — well below the required threshold of 40. It is trading below its 50-day EMA ($928.86), its 5-day rate of change is −9.2% (entry requires below −3%), and ADX stands at 35.6 (above the 20 threshold). TSM shows the same pattern: $398.37 close, RSI of 27.2, 5-day ROC of −5.2%, and ADX of 31.3 — every entry gate cleared. The strategy's fixed-risk stop loss triggers at −2.5% from entry, and the take-profit target sits at +4.9%, giving an effective reward-to-risk ratio of roughly 2:1. The 60-day thesis time stop means each position will be exited by that horizon at the latest if no other exit fires first. Position sizing caps each trade at 25% of portfolio capital with a $100 minimum, using the fixed-risk method tied to the 2.5% stop distance. Over the 60-month backtest on MU, this rule set produced 94 trades with a 42.6% win rate, a 129.3% cumulative return, and a maximum drawdown of 13.1%. A more recent 24-month subset on MU shows 34 trades, a 44.1% win rate, and a 63.8% return with an 11.5% drawdown, suggesting the setup has continued to function in newer market conditions. No parameter adjustment is being applied to the live strategy. The bounded walk-forward optimizer tested four RSI period and threshold variants but none improved on the baseline configuration by the required material margin in the final holdout period, so the published parameters remain unchanged.

Why the bull case still has support

The idea's core argument — that strong fundamentals are being drowned out by vague sector panic — has real numerical backing on both tickers. Per the Reuters report, TSMC just posted a 77% profit jump to a record, and the Yahoo Finance piece on Micron reinforces that its results strengthen the case for MU as essential AI infrastructure. TSMC's fundamentals back the excitement: revenue grew 31.6% year over year to NT$3.81T, gross margin sits at 59.9% (63rd percentile among IT peers), and operating margin is an elite 50.8% — the 99th percentile. This is not a company struggling with demand. Micron's fundamentals are equally supportive of the dip-buying thesis.…

Scores

• Conviction score breakdown: 74
• Thesis support: 75
• Trade readiness: 85
• Risk quality: 60
• Backtest evidence: 65
• Fundamentals trend: 85

Watch items

• MU — RSI (14)
• MU — Price vs 20-day EMA
• TSM — RSI (14)
• TSM — Price vs 20-day EMA
• MU — Unrealized loss from entry
• TSM — Unrealized loss from entry
• SMH — 5-day ROC
• MU — RSI (14) below 40
• MU — Price
• MU — ROC (5) below -3
• MU — ADX (14) above 20