New tariffs hit 60 countries just as US tech locks in Korean chip deals — long domestic memory suppliers

Verdict: wait — MX's fundamentals sink a technically compelling setup

The 60-month backtest on MX is genuinely striking — roughly 400% cumulative return across 150 trades with a 20.5% maximum drawdown — but those headline numbers mask a 40.7% win rate and exits approximated on daily bars, meaning real-world drawdowns could be materially worse in tariff-news-driven gap sessions. The fundamental case undercuts the thesis severely: MX revenue fell 8.9% year-over-year, gross margin has compressed for three straight quarters to 15.6%, and the company has burned free cash flow for five consecutive quarters, sitting in just the 7th percentile of IT peers. Per the Reuters report, Samsung and SK Hynix — not domestic suppliers — are landing the major US supply deals the idea cites as bullish evidence, which may represent competitive pressure on MX rather than a rising tide. No robust parameter setup was established; the rules remain thesis-consistent originals. With MX's ADX at 2.2 against a 20 threshold and RSI 5 points below entry, this setup is far from triggering today — and the deteriorating fundamentals argue for caution even if it does. **Conviction breakdown:** - **Thesis support (25/100):** The directional tariff logic is plausible but the primary cited evidence — Korean firms winning deals — cuts against the domestic-supplier thesis. - **Trade readiness (15/100):** No entry conditions are met; ADX at 2.2 needs to rise roughly ninefold. - **Risk quality (40/100):** A 2-to-1 reward-to-risk framework exists, but daily-bar exit approximation and a fat-tailed MX leg (kurtosis 13.8, max drawdown 62.2%) are significant concerns. - **Backtest evidence (55/100):** Strong headline returns and an improving recent-window drawdown, but the low win rate and path-dependency reduce reliability. - **Fundamentals trend (10/100):** Revenue declining, margins compressing, free cash flow negative for five straight quarters, and ROE at negative 12%.

Trade now

**Action today: Wait.** None of the four tradeable symbols (MX, SOXX, SMH, MU) currently meet all entry conditions. The strategy requires price above VWAP, ADX above 20, RSI above 40, and a positive 5-day rate of change — and right now every symbol is missing at least one condition. For MX, the closest to triggering: the 5-day rate of change is positive at 3.55% and the price is sitting near first support at $3.40 with last close at $3.50. But ADX is at 2.2 — far below the 20 threshold — and RSI is at 35.0, about 5 points below the 40 entry requirement. This is a low-momentum market: the trend-strength indicator needs to rise roughly ninefold from current levels. For SOXX, ADX is already met at 46.2 (strong trend), but RSI at 35.2 is about 4.8 points below threshold and the 5-day rate of change is negative at -4.65%, meaning the semiconductor ETF is still in a short-term downtrend. The exit framework tells you the risk parameters once a position is live. The hard stop is a 2% loss per position; the hard take-profit is a 4% gain — a 2-to-1 reward-to-risk. Additionally, a Fibonacci 78.6% retracement stop and a 127.2% extension target apply per symbol, and positions exit on RSI above 70 or after 21 bars. With MX currently at $3.50 and first support at $3.40, an entry near current levels would place the stop near $3.43 (the 2% level) with the $3.64 target (4% take-profit). The 60-month backtest on MX produced 150 trades with a 40.7% win rate, a 399.8% cumulative return, and a 20.5% maximum drawdown. The more recent 24-month window on MX delivered a 238.3% return with a shallower 12.4% drawdown across 83 trades. Note that exits were filled on daily bars, not intrabar, so fills are approximate. "Wait" means: do not enter today. Set alerts on MX ADX crossing above 20 and RSI crossing above 40 — when both fire alongside the already-met momentum condition, the setup is live.

Why the tariff-driven memory thesis still has support

The idea's core thesis — that broad tariffs on 60 trading partners will push US tech buyers toward tariff-sheltered, domestic memory suppliers — has genuine macro support. Per the CNBC piece, the latest tariff blitz is structurally different from prior rounds, hitting a much wider set of countries. If those barriers hold, companies with US-based or tariff-exempt supply chains become more valuable by default. The thesis argues this dynamic is "incredibly bullish" for domestic memory makers, and the directional logic is sound: tariffs raise the cost of imported chips, making local supply a competitive advantage. On the quant side, the backtested evidence is stronger than you might expect for a small-cap like MagnaChip. The 60-month backtest on MX delivered a cumulative return of roughly 400% across 150 trades, with…

Scores

• Conviction score breakdown: 29
• Thesis support: 25
• Trade readiness: 15
• Risk quality: 40
• Backtest evidence: 55
• Fundamentals trend: 10

Watch items

• MX — ADX (14)
• MX — RSI (14)
• MX — ROC (5)
• SOXX — ADX (14)
• SOXX — RSI (14)
• SOXX — ROC (5)
• MX — Price vs Support[1]
• SOXX — Price vs Support[1]
• MX — ADX (14) above 20
• MX — RSI (14) above 40
• MX — ROC (5) above 0