🚨 Alert #1055 Tue Jul-28 18:20:43
The Trump administration is considering tariffs on Chinese memory chips, which would likely benefit US suppliers like Micron through pricing leverage while increasing component costs for downstream manufacturers like Apple.
🎯 Tickers & verdicts
| ticker | direction | verdict | since close | 30m | day lo | day hi | intraday px |
|---|---|---|---|---|---|---|---|
| primary MU | ▲ bullish | PRICED | -8.94% | -0.31% | 774.65 | 848.99 | |
| AMD | · unclear | PRICED | -7.45% | -0.53% | 444.02 | 475.77 | |
| SMCI | · unclear | PRICED | -4.76% | -0.21% | 27.27 | 28.69 | |
| QCOM | · unclear | PRICED | -3.33% | -0.60% | 162.26 | 167.70 | |
| TSM | · unclear | PRICED | -1.88% | -0.13% | 381.24 | 395.36 | |
| peer NVDA | · unclear | FRESH | +0.64% | +0.05% | 193.21 | 198.53 | |
| counterparty AAPL | ▼ bearish | FRESH | +0.64% | -0.06% | 335.94 | 341.25 |
🧭 Decisions
| strategy | ticker | action | side | rationale |
|---|---|---|---|---|
| S1 | MU | ○ skip | — | verdict PRICED — Δ prev close -8.94% · Δ 30m -0.31% · px 819.75 (prev 900.20) → close +0.17% |
| S2 | AAPL | ● enter | ▼ short | verdict FRESH, direction bearish -> short AAPL (regulatory: The Trump administration is considering tariffs on Chinese memory chips, which would likely benefit US suppliers like Micron through pricing leverage while increasing component costs for downstream manufacturers like Apple.) [closed early: netted out by outranking S2 long AAPL decision 4306] |
| S3 | NVDA | ○ skip | — | direction unclear for NVDA → close -0.04% |
| S4 | MU | ○ skip | — | verdict PRICED — Δ prev close -8.94% · Δ 30m -0.31% · px 819.75 (prev 900.20) |
📈 Trades
| strategy | ticker | side | qty | entry | exit | P&L $ | status |
|---|---|---|---|---|---|---|---|
| S2 | AAPL | ▼ short | 2 | 339.30 | 338.91 | +0.78 | closed |
Retrospectives
| ticker | mfe | mae | reflection |
|---|---|---|---|
| AAPL S2 | +0.29% | -0.19% | Signal: Directionally right in a trivial sense — price drifted down ~0.11% — but a move that small (max favorable +0.29%) doesn't meaningfully validate a tariff-driven bearish thesis; the data here can't distinguish a correct call from noise. Timing: Entry came after a +0.64% rise since prior close, so the short wasn't chasing a move that had already happened; no evidence of stale entry. Exit: The close was forced by being netted against an opposing S2 long signal, not by the thesis playing out — it captured +0.11% of a +0.29% peak, so roughly 40% of what was available. The dominant factor is the exit mechanism: the outcome was determined by intra-strategy signal conflict, not by the regulatory rationale. |
📖 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.