🚨 Alert #452 Wed Jul-22 15:21:31
TSMC warned that its $200 billion U.S. expansion will pressure gross margins by 2-4 percentage points in the coming years despite strong AI demand and rising profits.
🎯 Tickers & verdicts
| ticker | direction | verdict | since close | 30m | day lo | day hi | intraday px |
|---|---|---|---|---|---|---|---|
| primary TSM | ▼ bearish | REPRICING | -1.08% | +0.62% | 412.25 | 424.96 | |
| SMCI | · unclear | PRICED | +22.27% | +0.61% | 28.58 | 32.24 | |
| QCOM | · unclear | REPRICING | +1.94% | +0.89% | 169.25 | 178.13 | |
| AMD | · unclear | REPRICING | +1.07% | +0.78% | 527.05 | 560.00 | |
| AAPL | · unclear | REPRICING | -0.85% | -0.55% | 323.58 | 327.90 | |
| GOOGL | · unclear | FRESH | +0.25% | -0.14% | 325.51 | 349.70 | |
| peer ASML | · unclear | REPRICING | -0.20% | +0.76% | 1762.04 | 1815.00 | |
| counterparty NVDA | · unclear | FRESH | -0.05% | -0.01% | 204.56 | 214.40 |
🧭 Decisions
| strategy | ticker | action | side | rationale |
|---|---|---|---|---|
| S1 | TSM | ● enter | ▼ short | verdict REPRICING, direction bearish -> sell TSM (guidance: TSMC warned that its $200 billion U.S. expansion will pressure gross margins by 2-4 percentage points in the coming years despite strong AI demand and rising profits.) |
| S2 | NVDA | ○ skip | — | direction unclear for NVDA → close +2.38% |
| S3 | ASML | ○ skip | — | direction unclear for ASML → close +0.24% |
| S4 | TSM | ● enter | ▼ short | overnight drift: sell TSM at close, exit next close (guidance: TSMC warned that its $200 billion U.S. expansion will pressure gross margins by 2-4 percentage points in the coming years despite strong AI demand and rising profits.) |
📈 Trades
| strategy | ticker | side | qty | entry | exit | P&L $ | status |
|---|---|---|---|---|---|---|---|
| S1 | TSM | ▼ short | 2 | 420.01 | 421.93 | -3.84 | closed |
| S4 | TSM | ▼ short | 2 | 421.89 | 414.32 | +15.14 | closed |
Retrospectives
| ticker | mfe | mae | reflection |
|---|---|---|---|
| TSM S1 | +0.19% | -1.08% | Entry vs. outcome: The bearish thesis treated a multi-year margin headwind as an immediate repricing event, but the market shrugged — the "warning" was paired with strong AI demand and rising profits, and TSM never traded meaningfully lower (max favorable move a trivial +0.19%). This was a stale, already-digested narrative, not fresh negative information. Improvement: Tighten the REPRICING verdict to require the negative catalyst be near-term and unhedged — guidance about margin pressure "in coming years" that's bundled with positive demand commentary should be downgraded to NOISE or require price confirmation (e.g., stock down >1% on the news before shorting). Alternatively, add a mixed-signal filter: if the same headline contains offsetting bullish data, don't trade it directionally. |
| TSM S4 | +2.27% | -2.72% | Comparison: The short thesis (margin-pressure guidance) technically paid off (+1.8%), but the path was ugly — the -2.72% adverse excursion exceeded the final gain, meaning this was closer to a coin flip than the P&L suggests. The headline itself was mixed ("margin pressure" vs. "strong AI demand and rising profits"), so the entry rule shorted a story the market could plausibly read either way. Improvement: Require the sentiment signal to be unambiguous before entry — e.g., only short on guidance cuts with no offsetting positive framing in the same release, or add a threshold that the expected move must exceed the stock's typical overnight volatility (here, ~2.7% swings dwarf the edge). Otherwise you're booking wins on noise and calling it signal. |
📖 Glossary
- S1 primary — trades the alert's primary ticker in the direction the article itself indicates; exits at the same day's close.
- S2 counterparty — trades the inferred counterparty ticker (weakest signal, LLM-inferred sympathy); exits at the same day's close.
- S3 peer — trades an inferred peer ticker (also LLM-inferred sympathy); exits at the same day's close.
- S4 overnight — holds the primary ticker from today's close to the NEXT day's close.
- Verdicts are decided top-to-bottom, first match wins; REPRICING is also the fallback when nothing else matches (2026-08-08 #220).
- UNKNOWN — a needed price input (move since close or move in the last 30m) is missing.
- PRICED — |move since previous close| ≥ 2.0%: already reflected in price.
- REPRICING — |move in the last 30m| ≥ 0.5%: the tape is actively moving on it. Also covers a quieter move — |move since previous close| in [1.0, 2.0) with a quiet last-30m tape: still developing, not yet priced.
- FRESH — |move since previous close| < 1.0%: a genuinely new move.
- materiality — how market-moving the story was judged, 0-100 — alerts require materiality ≥ 60.